A SiftingSignal publication/ Edited by Simon Mathews, MD

The week in GI, filtered to what is worth knowing.

Every week, 300+ papers from 25+ top GI and medical journals, transparently scored and physician-vetted. The signal, not the noise.

This week, in numbers

Issue №10 · week of Sep 6, 2026See the trends →
Top journals this week: Nat Rev Gastro Hep / Nature Medicine / J Hepatology / Gastroenterology
Selectivity
7.1%
22 in the issue of 308 screened
in the issue 22in depth 79held 11filtered out 196
92.9% of what published this week did not make the issue. That filter is the product. A further 79 cleared the bar and are carried in one line each, in full on the subspecialty pages.
How this week moves the standard
Changes practice 0
No paper this week forces an outright change to the standard. That is the usual, honest result.
Each paper is matched to the guideline that governs its question, then placed by how it moves it. These are the 22 cards in the issue; every one quotes the standard it was measured against, with its source and review date. Click a segment to filter the issue.
The signal map
EmergingReinforcesRefinesChangesstrong evidence · moves the standardnarrative reviewguideline →How far it moves the standardEvidence strength
Each dot is a paper: evidence strength across, how far it moves the standard up, area = the journal's impact factor, colour = subspecialty. The shaded zone is a fixed bar (prospective cohort or better, refining the standard or better), so a big dot outside it is work the field rated highly that is not changing practice. Click a dot to open its card.

What to know this week

the top-scored · the 5-minute version

naltrexone triples abstinence (64% vs 22%) in compensated alcohol cirrhosis with AUD, use MPS for postcholecystectomy strictures, FCSEMS for chronic pancreatitis, and balloon dilation for PSC strictures, and IBD CRC surveillance should prioritize patients with ≥2 affected relatives over early-onset family history.

The 22 in the issue this week, ranked by signal score. Each anchored to the relevant standard of care. All in full below; 79 more, read and scored the same way, in one line each at the foot of the issue.

Your subspecialty, the takeaways
IBD24Hepatology30Esophagus/Reflux5Pancreas/Biliary10Endoscopy15Motility6Colorectal9Nutrition2
Type

This week to know

the 11 strongest this week · each scored 0 to 100 on what it lets you do, who it touches, the stakes, and how well the evidence backs it
Hepatology rct · n=100 · Sep 1, 2026 · Liver International · IF 6.7

Naltrexone Is Superior to Placebo for Abstinence and Craving Reduction in Alcohol-Associated Cirrhosis: NAL-CI Trial.

New therapyalcohol-associated liver diseasecirrhosis
Clinical takeawayConsider naltrexone 50 mg/day for patients with compensated alcohol-associated cirrhosis (CTP ≤6, MELD ≤13) and alcohol use disorder, alongside psychosocial support, to improve abstinence and reduce craving compared to placebo. Adverse events were comparable between groups.
What it foundNaltrexone (50 mg/day) achieved 64% abstinence at 12 weeks vs 22% with placebo (OR 10.86, 95% CI: 1.89-62.2) and reduced craving scores (OCDS-O 6.63 vs 9.29, p < 0.01; OCDS-C 6.35 vs 9.02, p < 0.01) in compensated alcohol-associated cirrhosis.
ContextFirst RCT to demonstrate safety and efficacy of naltrexone in compensated alcohol-associated cirrhosis, addressing a prior gap where no pharmacotherapy was approved due to liver safety concerns.
Emergingsuggested applicable standard· American Association for the Study of Liver Diseases (AASLD), Kaplan DE, Ripoll C, Thiele M, et al. "AASLD Practice Guidance on risk stratification and management of portal hypertension and varices in cirrhosis." Hepatology. 2024;79(5):1180-1211.

Decision at stakepharmacological management of alcohol use disorder in compensated alcohol-associated cirrhosis

Once CSPH is established, offer a non-selective beta-blocker, carvedilol preferred at 12.5 mg/day, to lower portal pressure and prevent FIRST decompensation, on the strength of PREDESCI. Statin use in compensated cirrhosis is NOT a recommendation traceable to this document; the current entry's statin sentence needs its own source or removal.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Scope: this primary document covers portal hypertension and varices in cirrhosis ONLY. Everything else in the current entry (HCC surveillance, transplant referral, nutrition, vaccination, ascites/SBP/HE/HRS/ACLF management) belongs to the separate documents listed as supporting sources and must not be attributed to this guidance. Risk-stratify compensated advanced chronic liver disease (cACLD) with non-invasive tests before defaulting to endoscopy. By vibration-controlled transient elastography, liver stiffness (LSM) under 10 kPa excludes cACLD, 10 to 14.9 kPa is suggestive and warrants further testing, and 15 kPa or above rules cACLD in. Clinically significant portal hypertension (CSPH, i.e. HVPG above 10 mm Hg) is ruled in non-invasively by LSM at or above 25 kPa alone, or LSM 20 to 24.9 kPa with platelets below 150 x 10^9/L, or LSM 15 to 19.9 kPa with platelets below 110 x 10^9/L. Where spleen stiffness measurement is available, values below 21 kPa argue against CSPH and above 50 kPa argue for it. These non-invasive cutoffs are conditional probability thresholds, not universal diagnostic rules, and hold only when their derivation conditions are met. They were established in compensated advanced chronic liver disease of viral (treated or untreated HBV/HCV), alcohol-related, or non-obese (BMI under 30) MASLD etiology, and are not validated for and should not be applied to cholestatic (e.g. PBC, PSC), vascular, or other etiologies, in which different cutoffs apply. They also require a technically reliable liver stiffness measurement by vibration-controlled transient elastography, fasting, at least 10 valid acquisitions, and an IQR/median ratio below 30 percent, and are confounded by factors that raise liver stiffness independently of fibrosis, including ALT flares or acute hepatitis, extrahepatic cholestasis, hepatic congestion (right heart failure), and recent food intake; Baveno VII recommends confirming an LSM-based rule-in on a repeat measurement obtained on a separate day. The spleen stiffness cutoffs apply only to a dedicated 100 Hz spleen module, carry a higher technical failure rate, are machine-dependent, and are not interchangeable with values obtained using the standard 50 Hz liver probe. Where these population or acquisition conditions are not met, the numeric thresholds do not reliably classify CSPH, and HVPG measurement or endoscopy is required rather than a non-invasive determination. Preserve the gray zone: LSM 15 to 25 kPa without a qualifying platelet count is explicitly indeterminate (roughly 40 to 60 percent of cACLD patients) and calls for HVPG and/or endoscopy rather than assumption in either direction. Once CSPH is established, offer a non-selective beta-blocker, carvedilol preferred at 12.5 mg/day, to lower portal pressure and prevent FIRST decompensation, on the strength of PREDESCI. This is a treat-the-pressure strategy rather than a treat-the-varices one: because a patient already on NSBB for CSPH would not have management changed by the finding, screening endoscopy becomes unnecessary for most such patients. Screening EGD is still indicated where elastography is unavailable, technically difficult, or gives discordant results, and for patients who do not meet non-invasive criteria. Standard beta-blocker contraindications (severe asthma, advanced heart block, bradyarrhythmias) continue to apply. For varices needing treatment managed endoscopically, band ligation is repeated every 2 to 4 weeks until obliteration, with surveillance endoscopy at 6 months and annually thereafter. Gastric/cardiofundal varices are treated with cyanoacrylate injection or EUS-guided coil embolization rather than banding, with hepatology involvement. In acute variceal hemorrhage, consider preemptive (early) TIPS within 24 to 72 hours in high-risk patients: Child-Turcotte-Pugh class B with score above 7 and active bleeding at endoscopy despite vasoactive therapy, or CTP class C with score 10 to 13. Keep the document's own qualifier: there is no established universal MELD or CTP cutoff at which TIPS is mandatory, and the decision is case-by-case with hepatology consultation. Statin use in compensated cirrhosis is NOT a recommendation traceable to this document; the current entry's statin sentence needs its own source or removal. Verification note: the Hepatology full text is paywalled (402/403 on direct fetch). Document identity, title, year, volume, pages and authorship were confirmed via Crossref and PubMed metadata; the numeric thresholds above were corroborated from two independent peer-reviewed commentaries on this specific guidance and match the Baveno VII rule-of-five, but were not read verbatim from the primary PDF. A human should confirm the exact guidance-statement wording against the full text before this entry is treated as quotation-grade.

American Association for the Study of Liver Diseases (AASLD), Kaplan DE, Ripoll C, Thiele M, et al. "AASLD Practice Guidance on risk stratification and management of portal hypertension and varices in cirrhosis." Hepatology. 2024;79(5):1180-1211. · reviewed 2026-07-23 ↗
Alla M … Sarin SK · Liver International : Official Journal of the International Association for the Study of the Liver · IF 6.7 · PubMed ↗Permalink
Endoscopy guideline · Sep 3, 2026 · Endoscopy · IF 11.8

Biliary stricture management: European Society of Gastrointestinal Endoscopy (ESGE) Guideline.

Guideline / reviewbiliary strictureERCPguideline
Clinical takeawayFollow ESGE guidelines for stent selection and management in biliary strictures: use MPS for postcholecystectomy strictures, FCSEMS for chronic pancreatitis strictures (6-12 months) when >2 cm from hepatic confluence, and balloon dilation alone for PSC strictures (avoid stenting). Avoid USEMS for unconfirmed etiology. For hilar malignant obstruction, use ERCP for Bismuth types I-II and ERCP/EUS-BD for Bismuth III-IV over PTBD.
What it foundESGE provides specific stent and dilation recommendations for benign and malignant biliary strictures, including MPS for postcholecystectomy strictures, FCSEMS for chronic pancreatitis strictures (6-12 months) when located >2 cm distally from the main hepatic confluence, and balloon dilation alone for PSC strictures (no added benefit of stenting, which may increase adverse events). Avoid USEMS for unconfirmed etiology and prefer ERCP over PTBD for hilar malignant obstruction (Bismuth types I-II). For Bismuth III-IV, ERCP or combined ERCP/EUS-BD is preferable over primary PTBD.
ContextRefines and standardizes current practice with evidence-based recommendations for stent use and drainage strategies across various biliary stricture etiologies, including location-specific and population-specific guidance.
Refinessuggested applicable standard· European Society of Gastrointestinal Endoscopy (ESGE), "Endoscopic biliary stenting: indications, choice of stents, and results: European Society of Gastrointestinal Endoscopy (ESGE) Clinical Guideline, Updated October 2017", Endoscopy 2018;50(9):910-930

Decision at stakethe management of benign biliary strictures with multiple plastic stents or FCSEMS

Manage benign anastomotic and chronic-pancreatitis strictures with a fully-covered self-expanding metal stent for 6-12 months (multiple plastic stents when FCSEMS is contraindicated, hepaticojejunostomy if refractory).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Distinguish benign from malignant biliary strictures using cross-sectional imaging (MRI/MRCP preferred over contrast-enhanced CT) plus laboratory tests, interpreting CA19-9 after biliary decompression and never relying on tumor markers alone; check serum IgG4 when IgG4-related sclerosing cholangitis is suspected (HISORt criteria). Per the ESGE 2024 diagnostic work-up guideline, tissue-acquisition strategy now branches by stricture location rather than following one linear sequence: for DISTAL extrahepatic strictures with jaundice and no pancreatic mass, combined same-session EUS-guided tissue acquisition (EUS-TA, end-cutting FNB needle) plus ERCP-based tissue acquisition (standard brush cytology plus fluoroscopy-guided biopsy) is the strongly preferred first-line approach; for PERIHILAR strictures, obtain brush cytology plus fluoroscopy-guided biopsy at index ERCP, escalate indeterminate strictures to cholangioscopy-guided biopsy (with intraductal ultrasound/confocal laser endomicroscopy selectively), and reserve EUS-TA for cases where ERCP-based sampling is insufficient and curative resection is not feasible and/or extraluminal disease is accessible; escalate any positive or indeterminate feature to multidisciplinary tumor board. Manage benign anastomotic and chronic-pancreatitis strictures with a fully-covered self-expanding metal stent for 6-12 months (multiple plastic stents when FCSEMS is contraindicated, hepaticojejunostomy if refractory). Treat cholangitis with biliary obstruction as an indication for urgent biliary drainage, but do not instrument every obstructed sector: for hilar or multisegmental strictures (Bismuth II-IV), ESGE suggests draining ≥50% of the liver volume and avoiding opacification of biliary ducts that will not be drained (weak recommendation, low-quality evidence), because post-ERCP cholangitis frequently complicates injection of obstructed ducts that are not subsequently drained, whereas drainage of >50% of liver volume is associated with less cholangitis and longer survival; ESGE suggests antibiotic prophylaxis before biliary stenting in selected patients (e.g., immunocompromised patients, expected incomplete biliary drainage; weak recommendation, moderate-quality evidence), with a full antibiotic course if adequate drainage is not achieved during the procedure. Direct etiology-specific care for Strasberg bile-duct injuries, post-transplant strictures (ASGE 2023: ERCP preferred over PTBD, covered SEMS preferred over multiple plastic stents), IgG4-sclerosing cholangitis, Mirizzi syndrome, and choledochal cysts.

European Society of Gastrointestinal Endoscopy (ESGE), "Endoscopic biliary stenting: indications, choice of stents, and results: European Society of Gastrointestinal Endoscopy (ESGE) Clinical Guideline, Updated October 2017", Endoscopy 2018;50(9):910-930 · reviewed 2026-07-20 ↗
Lemmers A … Triantafyllou K · Endoscopy · IF 11.8 · PubMed ↗Permalink
IBD prospective cohort · n=1,338,028 · Sep 3, 2026 · Gastroenterology · IF 25.1

Impact of Family History on Colorectal Cancer Risk in Inflammatory Bowel Disease and in Matched General Population Comparators.

New evidencecolorectal cancerepidemiology
Clinical takeawayRe-evaluate surveillance prioritization for IBD patients, focusing on those with ≥2 first-degree relatives with CRC (any age) rather than solely early-onset family history.
What it foundIn IBD, CRC incidence was highest with ≥2 affected first-degree relatives (2.69 additional cases/1,000 person-years vs no family history), while early-onset CRC heredity showed minimal risk increase (0.42/1,000 person-years). CRC risk was comparable between IBD patients and general population with the same family history, except in those without family history where IBD conferred higher risk.
ContextChallenges current guideline focus on early-onset CRC family history, showing multiple affected relatives confer greater absolute risk in IBD, with similar risk patterns to the general population when family history is present.
Refinessuggested applicable standard· American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562.

Decision at stakeroutine endoscopic CRC surveillance in Crohn's colitis

DIAGNOSIS: Use fecal calprotectin (cutoff >50-100 μg/g) to differentiate inflammatory from noninflammatory disease OF THE COLON (strong, moderate). Ileocolonoscopy with biopsies for suspected CD; biopsy uninvolved mucosa to define histologic extent; small bowel imaging is part of the initial workup (key concepts, ungraded). CT enterography is comparable to MR enterography for small bowel detection; MRE should be used PREFERENTIALLY in patients younger than 35 years and where serial examinations are likely, because of radiation avoidance, MRE is not a blanket first choice. Intestinal ultrasound is a radiation-free ADJUNCT to diagnosis and to monitoring treatment response (key concept, ungraded, not a graded recommendation). Perform routine endoscopic CRC surveillance in Crohn's colitis (strong, moderate).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text. The rest of this standard includes PERIANAL FISTULIZING, POST-OPERATIVE, SURGERY/ABSCESS and 3 more.

Our full summary of this standard

DIAGNOSIS: Use fecal calprotectin (cutoff >50-100 μg/g) to differentiate inflammatory from noninflammatory disease OF THE COLON (strong, moderate). Ileocolonoscopy with biopsies for suspected CD; biopsy uninvolved mucosa to define histologic extent; small bowel imaging is part of the initial workup (key concepts, ungraded). CT enterography is comparable to MR enterography for small bowel detection; MRE should be used PREFERENTIALLY in patients younger than 35 years and where serial examinations are likely, because of radiation avoidance, MRE is not a blanket first choice. Intestinal ultrasound is a radiation-free ADJUNCT to diagnosis and to monitoring treatment response (key concept, ungraded, not a graded recommendation). Perform routine endoscopic CRC surveillance in Crohn's colitis (strong, moderate). MILD-TO-MODERATE / LOWER PROGRESSION RISK: Recommend AGAINST oral mesalamine for induction or maintenance (strong, moderate); sulfasalazine should be considered ONLY for symptomatic mild COLONIC CD (key concept). Controlled ileal-release budesonide 9 mg daily for induction of symptomatic remission in mildly-to-moderately active ileocecal CD (strong, moderate), but recommend AGAINST ileal-release budesonide for MAINTENANCE (strong, low). MODERATE-TO-SEVERE / HIGHER RISK: SUGGEST AGAINST requiring failure of conventional therapy before initiating advanced therapy (conditional, LOW, a permission to skip step-up, not a mandate to start advanced therapy upfront). Oral corticosteroids for short-term induction only (strong, low). Recommend AGAINST azathioprine 1.5-2.5 mg/kg/d and 6-mercaptopurine 0.75-1.5 mg/kg/d for INDUCTION (strong, moderate), but SUGGEST the same agents and doses for MAINTENANCE after corticosteroid-induced remission (conditional, low). Check TPMT before starting azathioprine/6-MP (strong, low); measure NUDT15 variants in patients of East Asian ancestry and TPMT variants in all patients prior to thiopurine initiation (strong, moderate). Methotrexate up to 25 mg weekly IM/SC for maintenance after corticosteroid induction (conditional, low). Anti-TNF agents (IV infliximab, SC adalimumab, SC certolizumab pegol) for induction and maintenance (strong, moderate). Recommend COMBINATION IV infliximab + thiopurine over either agent alone in patients naive to both (strong, moderate). Vedolizumab IV for induction and maintenance of symptomatic remission (strong, moderate). Ustekinumab (strong, moderate); risankizumab (strong, moderate), and risankizumab over ustekinumab in prior anti-TNF exposure (conditional, low); mirikizumab (strong, moderate); guselkumab IV-then-SC or all-SC (strong, moderate). Upadacitinib for induction and maintenance in patients PREVIOUSLY EXPOSED TO ANTI-TNF (strong, moderate), the ACG does not endorse it as a first-line biologic-naive option. SC infliximab and SC vedolizumab are maintenance options in responders to IV induction (strong, moderate). PERIANAL FISTULIZING: infliximab for induction (strong, moderate); adalimumab (conditional, low); antibiotics added to infliximab or adalimumab (conditional, very low); vedolizumab, ustekinumab, upadacitinib each (conditional, VERY LOW). Drain perianal abscesses and place setons before escalating advanced therapy (key concept). POST-OPERATIVE: endoscopic assessment at 6-12 months after surgically induced remission over no monitoring (conditional, moderate); in LOW post-op recurrence risk, continued observation rather than immediate medical therapy (conditional, very low); imidazole antibiotics (metronidazole) 1-2 g/d after small intestinal resection (conditional, low); in HIGH-risk CD, anti-TNF to prevent endoscopic recurrence (STRONG, moderate) and vedolizumab (CONDITIONAL, low), these two are not co-equal. SURGERY/ABSCESS: intra-abdominal abscess >2 cm should be treated with antibiotics plus a drainage procedure, and immunosuppression HELD until drainage is achieved (conditional, low). DISEASE MODIFIERS: counsel active smokers to quit; use NSAIDs with caution; assess stress, depression and anxiety as part of comprehensive care (key concepts).

American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562. · reviewed 2026-07-21 ↗
Everhov ÅH … Olén O · Gastroenterology · IF 25.1 · PubMed ↗Permalink
Motility rct · n=30 · Sep 1, 2026 · Gastroenterology · IF 25.1

Individualized targeted exclusion diet based on confocal laser endomicroscopy does not improve irritable bowel syndrome symptoms: a randomized controlled crossover trial.

New evidenceIBSbiomarker
Clinical takeawayDo not use confocal laser endomicroscopy (CLE) to guide dietary exclusions in IBS: CLE findings lack specificity for food triggers and do not predict dietary response.
What it foundIndividualized exclusion diets based on CLE-identified food triggers did not improve IBS symptoms more than sham diets (42% vs 36% response, OR=1.33, p=0.6), and CLE-detected mucosal alterations occurred in 100% of healthy controls, indicating poor specificity for food triggers.
ContextChallenges prior uncontrolled studies suggesting CLE-guided diets improve IBS symptoms, showing no benefit over sham exclusion in a controlled trial involving IBS patients.
Reinforcessuggested applicable standard· American Gastroenterological Association, Chey WD, Hashash JG, Manning L, Chang L. "AGA Clinical Practice Update on the Role of Diet in Irritable Bowel Syndrome: Expert Review." Gastroenterology. 2022;162(6):1737-1745 (doi:10.1053/j.gastro.2021.12.248; PMID 35337654)

Decision at stakewhether to use confocal laser endomicroscopy to identify food triggers for IBS

The low-FODMAP diet is currently the most evidence-based diet intervention for IBS and is delivered as a structured 3-phase protocol, NOT lifelong restriction: (1) restriction of high-FODMAP foods lasting NO MORE than 4-6 weeks, (2) reintroduction of FODMAP foods, and (3) personalization based on reintroduction results.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Per AGA best practice advice: dietary intervention is most appropriate for IBS patients who have insight into meal-related symptoms and are motivated to make dietary changes. Soluble fiber (e.g., psyllium/ispaghula) is efficacious for global IBS symptoms and is a reasonable initial option, most suitable in constipation-predominant IBS; insoluble fiber (wheat bran) is NOT. The low-FODMAP diet is currently the most evidence-based diet intervention for IBS and is delivered as a structured 3-phase protocol, NOT lifelong restriction: (1) restriction of high-FODMAP foods lasting NO MORE than 4-6 weeks, (2) reintroduction of FODMAP foods, and (3) personalization based on reintroduction results. Any specific diet intervention should be attempted for a predetermined length of time; if there is no clinical response, the diet should be ABANDONED and a different diet or therapy tried, rather than continued indefinitely. Refer willing and appropriate patients to a GI registered dietitian nutritionist (RDN) to implement and supervise the diet. Poor candidates for restrictive diet interventions include patients who already consume few culprit foods, those at risk for malnutrition, those who are food insecure, and those with an eating disorder or uncontrolled psychiatric disorder; routine screening for disordered eating/eating disorders by careful dietary history is critical before starting a restrictive diet.

American Gastroenterological Association, Chey WD, Hashash JG, Manning L, Chang L. "AGA Clinical Practice Update on the Role of Diet in Irritable Bowel Syndrome: Expert Review." Gastroenterology. 2022;162(6):1737-1745 (doi:10.1053/j.gastro.2021.12.248; PMID 35337654) · reviewed 2026-07-19 ↗
Balsiger LM … Tack J · Gastroenterology · IF 25.1 · PubMed ↗Permalink
Colorectal guideline · Sep 1, 2026 · Am J Gastro · IF 9.8

ACG Clinical Guideline: Diagnosis and Management of Adenomatous Colorectal Polyposis Syndromes.

Guideline / reviewguidelinefamilial adenomatous polyposiscolorectal cancer
Clinical takeawayFollow updated guideline recommendations for risk assessment (personal/family history), genetic testing (modality/timing), and cancer risk mitigation (endoscopic/surgical interventions) in patients with suspected or confirmed hereditary adenomatous polyposis syndromes.
What it foundGuidelines outline risk assessment, genetic testing, and endoscopic/surgical management strategies for hereditary adenomatous colorectal polyposis syndromes (FAP and MAP) to reduce cancer incidence and mortality.
ContextUpdates prior guidelines with new evidence on genetic testing, management strategies, and cancer risk mitigation for FAP and MAP.
Reinforcessuggested applicable standard· American College of Gastroenterology (Syngal S, Brand RE, Church JM, Kastrinos F, Lynch PM, Rubenstein JH). ACG Clinical Guideline: Genetic Testing and Management of Hereditary Gastrointestinal Cancer Syndromes. Am J Gastroenterol, 2015 (Recommendations 10 and 11).

Decision at stakethe timing and modality of genetic testing and surveillance in hereditary adenomatous polyposis syndromes

All patients meeting clinical criteria for, or carrying a pathogenic germline variant of, a hereditary GI cancer syndrome should have pre- and post-test genetic counseling, and at-risk first-degree relatives should be offered genetic testing.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

All patients meeting clinical criteria for, or carrying a pathogenic germline variant of, a hereditary GI cancer syndrome should have pre- and post-test genetic counseling, and at-risk first-degree relatives should be offered genetic testing. Syndrome-specific surveillance: LYNCH SYNDROME, colonoscopy at least every 2 years (annual colonoscopy should be considered in confirmed mutation carriers), beginning at age 20-25 years, or 2-5 years before the earliest CRC diagnosis in the family if that was before age 25; baseline EGD with gastric biopsy and test-and-treat for H. pylori at age 30-35, with ongoing upper-GI surveillance every 3-5 years where family history of gastric/duodenal cancer exists; annual endometrial biopsy and transvaginal ultrasound from age 30-35, with prophylactic hysterectomy/bilateral salpingo-oophorectomy offered after childbearing; surveillance BEYOND population-based recommendations for the urinary tract, pancreas, breast and prostate is NOT recommended unless supported by family history. CLASSIC FAP, annual sigmoidoscopy or colonoscopy beginning at puberty; colectomy indicated for documented/suspected cancer or significant symptoms (absolute), or for relative indications such as multiple adenomas >6 mm or a significant increase in adenoma number that make endoscopic control unfeasible; upper-GI surveillance by EGD/duodenoscopy from age 25-30, repeated every 0.5-4 years by Spigelman stage, plus annual thyroid ultrasound. AFAP, surveillance by colonoscopy (not sigmoidoscopy, as polyps are right-sided) with polypectomy every 1-2 years, beginning in the late teens to early 20s; upper-GI surveillance by EGD/duodenoscopy from age 25-30, repeated every 0.5-4 years by Spigelman stage, plus annual thyroid ultrasound (as for classic FAP). MUTYH-ASSOCIATED POLYPOSIS (biallelic MUTYH), colonoscopy every 1-2 years beginning at age 25-30; upper-GI surveillance by EGD/duodenoscopy from age 25-30, repeated every 0.5-4 years by Spigelman stage, plus annual thyroid ultrasound (as for classic FAP). SERRATED POLYPOSIS SYNDROME, colonoscopy every 1-3 years with attempted removal of all polyps >5 mm.

American College of Gastroenterology (Syngal S, Brand RE, Church JM, Kastrinos F, Lynch PM, Rubenstein JH). ACG Clinical Guideline: Genetic Testing and Management of Hereditary Gastrointestinal Cancer Syndromes. Am J Gastroenterol, 2015 (Recommendations 10 and 11). · reviewed 2026-07-23 ↗
Mankaney G … Burke CA · American Journal of Gastroenterology · IF 9.8 · PubMed ↗Permalink
Colorectal retrospective · n=110,410 · Sep 3, 2026 · Am J Gastro · IF 9.8

Longitudinal Data from a Large, Multi-Target Stool DNA Colorectal Cancer Screening Program.

New evidencecolorectal cancer screeningbiomarkerartificial intelligencehealth services
Clinical takeawayPrioritize colonoscopy follow-up within 6 months after a positive mt-sDNA test to maximize advanced adenoma detection, and address system-level barriers to repeat mt-sDNA testing every 3 years after a negative result, as only 35.3% adhered to repeat testing.
What it foundColonoscopy after positive mt-sDNA had a 30.7% advanced adenoma yield and 1.3% adenocarcinoma yield, exceeding specialty society benchmarks (adenoma detection rate >50%). Longer intervals (>6 months) to colonoscopy were associated with higher advanced adenoma detection (trend P=0.001).
ContextConfirms mt-sDNA as a high-yield screening tool but highlights critical gaps in follow-up (65.1% completion within 12 months) and repeat testing adherence (35.3% within 3 years), which undermine program effectiveness.
Reinforcessuggested applicable standard· US Multi-Society Task Force on Colorectal Cancer (Gupta S, et al.), "Recommendations for Follow-Up After Colonoscopy and Polypectomy: A Consensus Update by the US Multi-Society Task Force on Colorectal Cancer," Gastroenterology, 2020

Decision at stakethe clinical decision to use mt-sDNA as a screening tool for colorectal cancer

No single passage of this standard matched the paper closely enough to quote, so none is shown. The standard is cited above.

Our full summary of this standard

After polyp removal, assign the next colonoscopy surveillance interval using USMSTF 2020 based on polyp number, size, and histology (e.g., 1-2 tubular adenomas <10 mm 7-10 years; 3-4 tubular adenomas <10 mm 3-5 years; 5-10 tubular adenomas <10 mm, any adenoma ≥10 mm, or adenoma with tubulovillous/villous histology or high-grade dysplasia 3 years; >10 adenomas 1 year with polyposis evaluation; and for serrated polyps, 1-2 sessile serrated lesions <10 mm 5-10 years, 3-4 sessile serrated lesions <10 mm or a hyperplastic polyp ≥10 mm 3-5 years, and a sessile serrated lesion ≥10 mm or with dysplasia or a traditional serrated adenoma 3 years), and apply the shortest interval indicated when findings are mixed. Confirm complete resection and adequate prep before applying an interval, and use site-check/tumor-board pathways for piecemeal resection and malignant (T1) polyps. Refer for genetic evaluation when Lynch, FAP/AFAP/MAP, or serrated polyposis syndrome criteria are met.

US Multi-Society Task Force on Colorectal Cancer (Gupta S, et al.), "Recommendations for Follow-Up After Colonoscopy and Polypectomy: A Consensus Update by the US Multi-Society Task Force on Colorectal Cancer," Gastroenterology, 2020 · reviewed 2026-07-23 ↗
Garg SK … Chaudhary R · American Journal of Gastroenterology · IF 9.8 · PubMed ↗Permalink
Colorectal meta analysis · Sep 1, 2026 · Clin Gastro Hep · IF 16.2

Prevalence and Progression of Subtypes of Gastric Premalignant Lesions: A Systematic Review & Meta-Analysis.

New evidenceepidemiologymeta-analysissystematic reviewbiomarker
Clinical takeawayConsider subtyping gastric precancerous lesions (complete vs incomplete IM, LGD vs HGD) during endoscopy to inform risk-stratification, particularly in patients with incomplete IM or HGD, acknowledging current guidelines already recommend this approach.
What it foundIncomplete gastric intestinal metaplasia (IM) progresses to gastric cancer at 12.15 per 1000 person-years vs 1.73 for complete IM (p <0.01); high-grade dysplasia (HGD) progresses at 344.48 per 1000 person-years vs 11.55 for low-grade dysplasia (LGD, p <0.01), though estimates have substantial heterogeneity.
ContextThe literature reports a systematic review and meta-analysis on the prevalence and progression of subtypes of gastric premalignant lesions, but no consensus on colorectal health was identified in the provided signals.
Refinessuggested applicable standard· European Society of Gastrointestinal Endoscopy (ESGE), European Helicobacter and Microbiota Study Group (EHMSG) and European Society of Pathology (ESP), "Management of epithelial precancerous conditions and early neoplasia of the stomach (MAPS III): Guideline update 2025", Endoscopy, 2025 (Recommendations 31 and 34)

Decision at stakerisk stratification of gastric intestinal metaplasia and dysplasia subtypes

Propose NO surveillance for patients with mild to moderate atrophy or intestinal metaplasia restricted to the antrum, in the absence of endoscopic signs of extensive lesions or other risk factors (family history of gastric cancer, incomplete intestinal metaplasia, persistent H. pylori infection), the guideline states this group constitutes most individuals found in clinical practice.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Perform individual gastric risk assessment and staging of precancerous conditions at first-time gastroscopy, irrespective of the patient's country of origin. Use high quality endoscopy with virtual chromoendoscopy (VCE), after proper training, for screening, diagnosis and staging of atrophy and intestinal metaplasia and after endoscopic therapy; VCE guides the biopsy site, with random biopsies taken only when there are no endoscopically suspected changes. Take biopsies from at least two topographic sites, 2 from the antrum/incisura and 2 from the corpus, VCE-guided, in two separate, clearly labeled vials; an additional incisura biopsy is optional, not required. Stage with validated endoscopic classifications of atrophy (e.g. Kimura-Takemoto) or intestinal metaplasia (e.g. EGGIM) to stratify gastric cancer risk (suggestion, weaker than the biopsy recommendation). Follow up patients with extensive endoscopic changes (Kimura C3+ or EGGIM 5+) OR an advanced histological stage that reaches OLGA/OLGIM III/IV, severe atrophy or intestinal metaplasia and/or significant changes in both antrum and corpus rising to stage III/IV, not any intestinal metaplasia or any antrum-plus-corpus involvement on its own, with high quality endoscopy every 3 years, irrespective of country of origin (strong recommendation, moderate quality). Propose NO surveillance for patients with mild to moderate atrophy or intestinal metaplasia restricted to the antrum, in the absence of endoscopic signs of extensive lesions or other risk factors (family history of gastric cancer, incomplete intestinal metaplasia, persistent H. pylori infection), the guideline states this group constitutes most individuals found in clinical practice. Eradicate H. pylori in all patients with precancerous conditions and after endoscopic or surgical therapy. Discontinue or do not start gastric cancer screening or surveillance in asymptomatic individuals over 80, and weigh comorbidities when planning treatment of superficial lesions. Advise smoking cessation; low-dose daily aspirin may be considered for gastric cancer prevention only in selected individuals already at high cardiovascular risk. For visible neoplasia, use ESD for differentiated lesions clinically staged as dysplastic (low or high grade) or intramucosal carcinoma (any size if not ulcerated, or ≤30 mm if ulcerated), with EMR an alternative for Paris 0-IIa lesions ≤10 mm with low likelihood of malignancy. At the population level, endoscopic screening is suggested every 2-3 years in high-risk regions (age-standardized rate >20 per 100,000 person-years), every 5 years in intermediate-risk regions (ASR 10-20) only if cost-effectiveness has been proven, and not at all in low-risk regions (ASR <10).

European Society of Gastrointestinal Endoscopy (ESGE), European Helicobacter and Microbiota Study Group (EHMSG) and European Society of Pathology (ESP), "Management of epithelial precancerous conditions and early neoplasia of the stomach (MAPS III): Guideline update 2025", Endoscopy, 2025 (Recommendations 31 and 34) · reviewed 2026-07-23 ↗
Grell Y … Laszkowska M · Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association · IF 16.2 · PubMed ↗Permalink
Nutrition rct · n=163 · Sep 3, 2026 · Clin Gastro Hep · IF 16.2

STARS Phase 3 Trial: Once-Weekly Apraglutide Reduces Parenteral Support in Short Bowel Syndrome-Intestinal Failure.

New therapyshort bowel syndromeparenteral nutritionenteral nutrition
Clinical takeawayConsider once-weekly subcutaneous apraglutide for SBS-IF patients, particularly those with stoma anatomy, to reduce PS dependence, noting its favorable safety profile.
What it foundApraglutide significantly reduced weekly PS volume by 25.5% vs 12.5% with placebo at 24 weeks in SBS-IF patients, with a greater effect in the stoma subgroup (-25.6% vs -7.8%).
ContextConfirms and extends phase 2 findings, showing apraglutide's efficacy in reducing PS requirements in a larger, global phase 3 trial.
Refinessuggested applicable standard· ESPEN (European Society for Clinical Nutrition and Metabolism), "ESPEN guideline on chronic intestinal failure in adults, Update 2023," Clinical Nutrition, 2023

Decision at stakeconsidering GLP-2 analogs to reduce parenteral support in SBS-IF

In carefully selected PN-dependent patients, and only when prescribed by clinicians experienced in SBS/IF management (generally once the adaptation phase is complete), consider the GLP-2 analog teduglutide (0.05 mg/kg/day subcutaneously) to promote intestinal adaptation and reduce PN volume, but only after baseline screening to exclude neoplasia and contraindications (colonoscopy with removal of any polyps when colon and/or rectum is present, and assessment for active or recent [within 5 years] gastrointestinal, hepatobiliary, or pancreatic malignancy, which contraindicate its use) and with mandatory ongoing safety monitoring (surveillance colonoscopy after 1-2 years then every 5 years, plus vigilance for colorectal/GI polyps and neoplasia, intestinal obstruction, biliary/gallbladder and pancreatic disease, and fluid overload); add antimotility agents (loperamide, then codeine/opium tincture) for high-output stoma, and provide lifelong nutrient surveillance/supplementation (notably B12) plus monitoring for CRBSI, IFALD, oxalate stones, and refeeding syndrome.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Manage short bowel syndrome / intestinal failure with a multidisciplinary IF team using a three-phase nutrition strategy: initiate TPN with IV hydration and electrolyte replacement in the acute hypersecretory phase, progressively advance enteral feeds and wean PN during the 1-2 year adaptation phase, then maintain an oral diet with selective PN as needed. In carefully selected PN-dependent patients, and only when prescribed by clinicians experienced in SBS/IF management (generally once the adaptation phase is complete), consider the GLP-2 analog teduglutide (0.05 mg/kg/day subcutaneously) to promote intestinal adaptation and reduce PN volume, but only after baseline screening to exclude neoplasia and contraindications (colonoscopy with removal of any polyps when colon and/or rectum is present, and assessment for active or recent [within 5 years] gastrointestinal, hepatobiliary, or pancreatic malignancy, which contraindicate its use) and with mandatory ongoing safety monitoring (surveillance colonoscopy after 1-2 years then every 5 years, plus vigilance for colorectal/GI polyps and neoplasia, intestinal obstruction, biliary/gallbladder and pancreatic disease, and fluid overload); add antimotility agents (loperamide, then codeine/opium tincture) for high-output stoma, and provide lifelong nutrient surveillance/supplementation (notably B12) plus monitoring for CRBSI, IFALD, oxalate stones, and refeeding syndrome.

ESPEN (European Society for Clinical Nutrition and Metabolism), "ESPEN guideline on chronic intestinal failure in adults, Update 2023," Clinical Nutrition, 2023 · reviewed 2026-07-23 ↗
Joly F … STARS Investigators · Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association · IF 16.2 · PubMed ↗Permalink
Hepatology prospective cohort · n=16,560 · Sep 1, 2026 · Liver International · IF 6.7

Time-Varying Impact of Steatosis and Alcohol on Mortality: A Marginal Structural Model of the Canadian Longitudinal Study on Aging.

New evidencealcohol-associated liver diseaseepidemiology
Clinical takeawayCounsel patients with steatotic liver disease (SLD), especially females with ALD, on the significant mortality risk associated with alcohol use and emphasize the need for ongoing alcohol cessation support. Monitor and reassess alcohol consumption and SLD subtype at regular intervals, as classifications can change over time.
What it foundIn a longitudinal cohort of adults aged 45-85 years, ALD showed the highest mortality risk (aHR 6.11; 95% CI 1.76-21.19), with females having higher mortality rates than males (11.37 vs. 5.60 per 1000 person-years).
ContextThis study challenges the reliance on static SLD classifications by demonstrating that disease phenotypes and associated mortality risks are dynamic, with substantial transitions between subtypes over time in a longitudinal cohort.
Refinessuggested applicable standard· AASLD 2023 Practice Guidance, updated by AASLD Practice Guidance October 2024 (resmetirom) and November 2025 (semaglutide)

Decision at stakethe recommendation to limit alcohol intake in MASLD/MetALD patients

Diagnose MASLD by hepatic steatosis on imaging (or biopsy) plus at least one cardiometabolic criterion and exclusion of competing etiologies (significant alcohol use, other liver disease), then risk-stratify fibrosis using a sequential non-invasive approach: FIB-4 first, followed by a second-line imaging-based test (VCTE, MRE, or ELF) for indeterminate/high-risk FIB-4, with liver biopsy reserved for discordant or unclear cases.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Diagnose MASLD by hepatic steatosis on imaging (or biopsy) plus at least one cardiometabolic criterion and exclusion of competing etiologies (significant alcohol use, other liver disease), then risk-stratify fibrosis using a sequential non-invasive approach: FIB-4 first, followed by a second-line imaging-based test (VCTE, MRE, or ELF) for indeterminate/high-risk FIB-4, with liver biopsy reserved for discordant or unclear cases. Lifestyle modification (≥7-10% weight loss, Mediterranean diet, exercise) remains the foundation for all patients. For adults with MASH and F2-F3 fibrosis identified by non-invasive tests (VCTE 8-15 kPa, MRE 3.1-4.4 kPa, or ELF 9.2-10.5) rather than biopsy, AASLD now gives dedicated, updated practice guidance on both FDA-approved pharmacotherapies: resmetirom (Oct 2024 update) and semaglutide 2.4mg/week subcutaneous (Nov 2025 update, following August 2025 accelerated FDA approval based on ESSENCE trial data: 62.9% vs 34.3% MASH resolution without fibrosis worsening; 36.8% vs 22.4% ≥1-stage fibrosis improvement). Pioglitazone or vitamin E remain options per the 2023 base guidance. Manage cardiometabolic risk with statins for ASCVD reduction plus glycemic and blood-pressure control; for semaglutide specifically, routine hepatic panels are recommended only as clinically indicated (no discontinuations for LFT elevation in ESSENCE), with monitoring for GI adverse effects and rare risks (AKI, gallbladder disease, pancreatitis, thyroid C-cell tumors, retinopathy progression, lean mass loss). HCC surveillance with ultrasound and AFP every 6 months remains indicated only if cirrhosis is present.

AASLD 2023 Practice Guidance, updated by AASLD Practice Guidance October 2024 (resmetirom) and November 2025 (semaglutide) · reviewed 2026-07-23 ↗
Rapino C … Saeed S · Liver International : Official Journal of the International Association for the Study of the Liver · IF 6.7 · PubMed ↗Permalink
Hepatology prospective cohort · n=1,531 · Sep 2, 2026 · Dig Liver Dis · IF 4.2

Comparative performance of HCC risk scores in identifying low-risk patients with cirrhosis: A multicenter cohort study.

New evidencecirrhosishepatocellular carcinomabiomarkerepidemiology
Clinical takeawayConsider using THRI over aMAP to identify cirrhosis patients with truly low HCC risk (0.5% 5-year risk) who may safely defer surveillance, particularly in non-viral etiologies (60% of cohort).
What it foundTHRI identified low-risk cirrhosis patients (18% of cohort) with a 0.5% 5-year HCC risk vs 2.9% for aMAP low-risk patients, and had higher discrimination than aMAP (AUC 0.74 vs 0.64 at 3 years).
ContextChallenges current reliance on aMAP for HCC risk stratification in cirrhosis, particularly for non-viral etiologies in a Western cohort.
Refinessuggested applicable standard· American Association for the Study of Liver Diseases (AASLD), 'AASLD Practice Guidance on prevention, diagnosis, and treatment of hepatocellular carcinoma,' Hepatology, 2023 (78(6):1922-1965).

Decision at stakeidentifying low-risk cirrhosis patients who may not need HCC surveillance

Perform HCC surveillance in adults with cirrhosis of any etiology who are able to benefit from HCC treatment, accordingly, do not enroll patients with Child-Turcotte-Pugh class C cirrhosis unless they are candidates for (or listed for) liver transplantation, and do not surveil those with life-limiting comorbidity (life expectancy <1-2 years) that transplantation cannot remedy, and in select non-cirrhotic chronic HBV carriers at elevated risk (e.g., active hepatitis/high viral load, family history of HCC, African/African-American ancestry, Asian men >40 and Asian women >50; AASLD references risk scores such as PAGE-B but stops short of mandating a specific numeric cutoff).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Perform HCC surveillance in adults with cirrhosis of any etiology who are able to benefit from HCC treatment, accordingly, do not enroll patients with Child-Turcotte-Pugh class C cirrhosis unless they are candidates for (or listed for) liver transplantation, and do not surveil those with life-limiting comorbidity (life expectancy <1-2 years) that transplantation cannot remedy, and in select non-cirrhotic chronic HBV carriers at elevated risk (e.g., active hepatitis/high viral load, family history of HCC, African/African-American ancestry, Asian men >40 and Asian women >50; AASLD references risk scores such as PAGE-B but stops short of mandating a specific numeric cutoff). Surveillance is abdominal ultrasound PLUS serum AFP at ~6-month (semiannual) intervals, a change from prior AASLD guidance, which had left AFP optional (Strong recommendation). Pursue diagnostic evaluation for an AFP ≥20 ng/mL or for a rising AFP, defined as a doubling of AFP or an increase on two consecutive tests even if the absolute value is <20 ng/mL. Any suspicious ultrasound observation ≥1 cm, or an inadequate/limited ultrasound, should be evaluated with multiphasic contrast-enhanced CT or MRI interpreted with CT/MRI LI-RADS. AASLD 2023 stages confirmed HCC using the BCLC framework and links stage to therapy (curative resection, ablation, or transplantation within Milan criteria for very-early/early disease; TACE and other locoregional therapy for intermediate disease; systemic therapy for advanced disease). Its first-line systemic options for advanced HCC with preserved liver function (Child-Pugh A) are atezolizumab+bevacizumab OR durvalumab+tremelimumab (STRIDE) as preferred, with sorafenib, lenvatinib, or durvalumab monotherapy as alternatives when the preferred combinations are contraindicated. After potentially curative therapy, continue surveillance for recurrence given high recurrence risk (AASLD monitors with cross-sectional contrast-enhanced imaging, not ultrasound, in the early post-treatment period).

American Association for the Study of Liver Diseases (AASLD), 'AASLD Practice Guidance on prevention, diagnosis, and treatment of hepatocellular carcinoma,' Hepatology, 2023 (78(6):1922-1965). · reviewed 2026-07-23 ↗
Moussa M … Sonneveld MJ · Digestive and Liver Disease : Official Journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · IF 4.2 · PubMed ↗Permalink
Hepatology rct · n=87 · Sep 3, 2026 · J Gastro Hep · IF 3.5

A Novel Anchoring Catheter Improves the Success, Efficiency, and Satisfaction of Paracentesis in Refractory Ascites: A Multicenter Randomized Crossover Trial.

New therapyasciteshealth servicesbasic science
Clinical takeawayConsider using the KH anchoring catheter instead of conventional angiocatheters for repeated paracentesis in cirrhotic patients with refractory ascites, given its higher success rate and shorter procedure time without increased adverse events.
What it foundThe novel anchoring catheter (KH) increased paracentesis success to 87.5% vs 71.6% with conventional angiocatheter (OR 2.78) and reduced median procedure time by 9 minutes (71 vs 80 min). Adverse events were comparable, with no major complications.
ContextChallenges the conventional angiocatheter by demonstrating superior efficacy and efficiency in a randomized crossover trial, without increased adverse events.
Refinessuggested applicable standard· American Association for the Study of Liver Diseases (AASLD), "Diagnosis, Evaluation, and Management of Ascites, Spontaneous Bacterial Peritonitis and Hepatorenal Syndrome: 2021 Practice Guidance" (Biggins et al.), Hepatology, 2021

Decision at stakethe choice of catheter for large volume paracentesis in refractory ascites

Perform a diagnostic paracentesis in all patients with new-onset ascites that is accessible for sampling, and in any patient with cirrhosis and ascites who is emergently admitted to the hospital for any reason, to rule out SBP even in the absence of signs or symptoms of infection (up to one-third of SBP is asymptomatic).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Perform a diagnostic paracentesis in all patients with new-onset ascites that is accessible for sampling, and in any patient with cirrhosis and ascites who is emergently admitted to the hospital for any reason, to rule out SBP even in the absence of signs or symptoms of infection (up to one-third of SBP is asymptomatic). Also perform it whenever a patient with ascites develops signs, symptoms, or laboratory abnormalities suggestive of infection, and in patients with tense ascites and AKI to exclude SBP as the cause. LVP/paracentesis is safe even with coagulopathy: elevated prothrombin time (INR >1.5) or thrombocytopenia (platelets <50×10^9/L) is not a contraindication, and routine transfusion of clotting factors or platelets is NOT recommended, with possible exceptions in disseminated intravascular coagulation, or uremia with thrombocytopenia (where desmopressin may be considered, especially with prior bleeding). The initial laboratory investigation of ascitic fluid should include ascitic fluid neutrophil (PMN) count, ascitic fluid total protein, and ascitic fluid albumin plus a simultaneous serum albumin to calculate the serum-ascites albumin gradient (SAAG). Ascitic fluid culture is not part of that routine initial panel but should be obtained whenever SBP is being evaluated (routinely for inpatients and when secondary bacterial peritonitis is suspected); when cultured, inoculate ≥10 mL of fluid into aerobic and anaerobic blood culture bottles at the bedside, before the first dose of antibiotics. Amylase, cytology, glucose, LDH, and mycobacterial (AFB/ADA) or triglyceride testing are not routinely indicated and should be guided by clinical context (e.g., suspected pancreatic, malignant, secondary-bacterial, tuberculous, or chylous ascites). Interpret SAAG to classify the cause: SAAG ≥1.1 g/dL indicates portal hypertension (~97% accuracy), while SAAG <1.1 g/dL points to non-portal-hypertensive (peritoneal) causes such as peritoneal carcinomatosis, tuberculous peritonitis, nephrotic syndrome, or pancreatic/chylous ascites. Within high-SAAG ascites, use ascitic total protein to distinguish the source: total protein <2.5 g/dL suggests cirrhosis (also massive liver metastasis, late Budd-Chiari), whereas total protein ≥2.5 g/dL suggests a postsinusoidal/cardiac source (heart failure, portal vein thrombosis, sinusoidal obstruction syndrome, early Budd-Chiari), directing workup toward right-heart catheterization, hepatic-vein Doppler, and echocardiography. The diagnosis of SBP is established with an ascitic fluid absolute neutrophil (PMN) count >250/mm^3 (with or without a positive culture, and in the absence of a surgically treatable intra-abdominal source of infection). Spontaneous bacterial empyema (SBE) is the analogous spontaneous infection of a pre-existing hepatic hydrothorax, not a parapneumonic effusion, and is established by the same pleural fluid PMN count >250/mm^3, but only after pneumonia and other secondary causes of the effusion have been excluded; despite the term "empyema" it is managed as an infection with antibiotics, and a chest tube should NOT be placed.

American Association for the Study of Liver Diseases (AASLD), "Diagnosis, Evaluation, and Management of Ascites, Spontaneous Bacterial Peritonitis and Hepatorenal Syndrome: 2021 Practice Guidance" (Biggins et al.), Hepatology, 2021 · reviewed 2026-07-23 ↗
Jeon SH … Kim SG · Journal of Gastroenterology and Hepatology · IF 3.5 · PubMed ↗Permalink

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the next 11, in full

IBD· 4

IBD meta analysis · n=9,902 · Sep 1, 2026 · Inflamm Bowel Dis · IF 4.5

Incidence of acne in patients with inflammatory bowel disease treated with Janus kinase inhibitors: a systematic review and meta-analysis.

New evidenceJAK inhibitorssystematic reviewmeta-analysis
Clinical takeawayCounsel IBD patients starting JAK inhibitors, especially upadacitinib or pediatric cases, about acne risk (8.6% overall, up to 12.2% in high-risk subgroups).
What it foundPooled incidence of acne in IBD patients on JAK inhibitors was 8.6% (95% CI: 6.4%-11.6%), with higher rates for upadacitinib (12.2%) vs tofacitinib (2.6%) and filgotinib (2.3%), and in pediatric (12.2%) vs adult (7.4%) patients.
ContextConfirms and quantifies acne risk across JAK inhibitors in IBD, previously known from dermatology studies but not systematically assessed in this population.
Refinessuggested applicable standard· American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562.

Decision at stakethe recommendation to use upadacitinib for induction and maintenance in patients previously exposed to anti-TNF

Upadacitinib for induction and maintenance in patients PREVIOUSLY EXPOSED TO ANTI-TNF (strong, moderate), the ACG does not endorse it as a first-line biologic-naive option.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text. The rest of this standard includes DIAGNOSIS, PERIANAL FISTULIZING, POST-OPERATIVE and 3 more.

Our full summary of this standard

DIAGNOSIS: Use fecal calprotectin (cutoff >50-100 μg/g) to differentiate inflammatory from noninflammatory disease OF THE COLON (strong, moderate). Ileocolonoscopy with biopsies for suspected CD; biopsy uninvolved mucosa to define histologic extent; small bowel imaging is part of the initial workup (key concepts, ungraded). CT enterography is comparable to MR enterography for small bowel detection; MRE should be used PREFERENTIALLY in patients younger than 35 years and where serial examinations are likely, because of radiation avoidance, MRE is not a blanket first choice. Intestinal ultrasound is a radiation-free ADJUNCT to diagnosis and to monitoring treatment response (key concept, ungraded, not a graded recommendation). Perform routine endoscopic CRC surveillance in Crohn's colitis (strong, moderate). MILD-TO-MODERATE / LOWER PROGRESSION RISK: Recommend AGAINST oral mesalamine for induction or maintenance (strong, moderate); sulfasalazine should be considered ONLY for symptomatic mild COLONIC CD (key concept). Controlled ileal-release budesonide 9 mg daily for induction of symptomatic remission in mildly-to-moderately active ileocecal CD (strong, moderate), but recommend AGAINST ileal-release budesonide for MAINTENANCE (strong, low). MODERATE-TO-SEVERE / HIGHER RISK: SUGGEST AGAINST requiring failure of conventional therapy before initiating advanced therapy (conditional, LOW, a permission to skip step-up, not a mandate to start advanced therapy upfront). Oral corticosteroids for short-term induction only (strong, low). Recommend AGAINST azathioprine 1.5-2.5 mg/kg/d and 6-mercaptopurine 0.75-1.5 mg/kg/d for INDUCTION (strong, moderate), but SUGGEST the same agents and doses for MAINTENANCE after corticosteroid-induced remission (conditional, low). Check TPMT before starting azathioprine/6-MP (strong, low); measure NUDT15 variants in patients of East Asian ancestry and TPMT variants in all patients prior to thiopurine initiation (strong, moderate). Methotrexate up to 25 mg weekly IM/SC for maintenance after corticosteroid induction (conditional, low). Anti-TNF agents (IV infliximab, SC adalimumab, SC certolizumab pegol) for induction and maintenance (strong, moderate). Recommend COMBINATION IV infliximab + thiopurine over either agent alone in patients naive to both (strong, moderate). Vedolizumab IV for induction and maintenance of symptomatic remission (strong, moderate). Ustekinumab (strong, moderate); risankizumab (strong, moderate), and risankizumab over ustekinumab in prior anti-TNF exposure (conditional, low); mirikizumab (strong, moderate); guselkumab IV-then-SC or all-SC (strong, moderate). Upadacitinib for induction and maintenance in patients PREVIOUSLY EXPOSED TO ANTI-TNF (strong, moderate), the ACG does not endorse it as a first-line biologic-naive option. SC infliximab and SC vedolizumab are maintenance options in responders to IV induction (strong, moderate). PERIANAL FISTULIZING: infliximab for induction (strong, moderate); adalimumab (conditional, low); antibiotics added to infliximab or adalimumab (conditional, very low); vedolizumab, ustekinumab, upadacitinib each (conditional, VERY LOW). Drain perianal abscesses and place setons before escalating advanced therapy (key concept). POST-OPERATIVE: endoscopic assessment at 6-12 months after surgically induced remission over no monitoring (conditional, moderate); in LOW post-op recurrence risk, continued observation rather than immediate medical therapy (conditional, very low); imidazole antibiotics (metronidazole) 1-2 g/d after small intestinal resection (conditional, low); in HIGH-risk CD, anti-TNF to prevent endoscopic recurrence (STRONG, moderate) and vedolizumab (CONDITIONAL, low), these two are not co-equal. SURGERY/ABSCESS: intra-abdominal abscess >2 cm should be treated with antibiotics plus a drainage procedure, and immunosuppression HELD until drainage is achieved (conditional, low). DISEASE MODIFIERS: counsel active smokers to quit; use NSAIDs with caution; assess stress, depression and anxiety as part of comprehensive care (key concepts).

American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562. · reviewed 2026-07-21 ↗
Quraishi MN … Al-Bawardy B · Inflammatory Bowel Diseases · IF 4.5 · PubMed ↗Permalink
IBD meta analysis · n=8,539 · Sep 1, 2026 · Inflamm Bowel Dis · IF 4.5

The prevalence of abdominal computed tomography imaging findings in patients with inflammatory bowel disease who present to the emergency department: a systematic review and meta-analysis.

New evidencesystematic reviewmeta-analysisepidemiology
Clinical takeawayConsider selective rather than routine CT imaging for IBD patients in the ED, as serious complications are uncommon.
What it foundPooled prevalence of serious penetrating IBD findings on ED CT was low: abscesses/inflammatory masses in 12% of CD and 3% of UC, perforations in 3% of CD and 1% of UC; non-IBD pathologies were <5%.
ContextChallenges current ED practice of frequent CT use in IBD by quantifying low yield for serious complications.
Reinforcessuggested applicable standard· ACG Clinical Guideline Update: Ulcerative Colitis in Adults, Am J Gastroenterol 2025;120(6):1187-1224; AGA Living Guideline on Pharmacological Management of Moderate-to-Severe UC, Gastroenterology 2024 (panel review March 2026, no changes)

Decision at stakeuse of CT imaging in ulcerative colitis patients presenting to the emergency department

Confirm ulcerative colitis with endoscopy showing continuous colonic inflammation from the rectum plus histology, after excluding infection with two-step CDI testing.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Confirm ulcerative colitis with endoscopy showing continuous colonic inflammation from the rectum plus histology, after excluding infection with two-step CDI testing. Treat mild-moderate disease with 5-ASA by route and extent (suppository for proctitis, enema for left-sided, oral plus rectal for extensive); if 5-ASA fails, treat as moderate-to-severe rather than stepping up gradually. Position advanced therapy by EFFICACY TIER, not by an anti-TNF-first rule. Advanced-therapy-naive, higher efficacy: infliximab, vedolizumab, ozanimod, etrasimod, upadacitinib, risankizumab, guselkumab; intermediate: golimumab, ustekinumab, tofacitinib, filgotinib, mirikizumab; lower: adalimumab. PREVIOUSLY TNF-EXPOSED, higher efficacy: tofacitinib, upadacitinib, ustekinumab; lower: adalimumab, vedolizumab, ozanimod, etrasimod - S1P modulators are weakest in exactly this group. Do not cycle within the anti-TNF class after primary non-response; switch mechanism. Apply treat-to-target (STRIDE-II) to endoscopic improvement (MES 0-1). Screen for acute severe UC by Truelove-Witts and admit for IV steroids. Begin CRC surveillance 8-10 years after DIAGNOSIS for extensive or left-sided disease; isolated proctitis follows average-risk screening.

ACG Clinical Guideline Update: Ulcerative Colitis in Adults, Am J Gastroenterol 2025;120(6):1187-1224; AGA Living Guideline on Pharmacological Management of Moderate-to-Severe UC, Gastroenterology 2024 (panel review March 2026, no changes) ↗
Azward A … McCurdy JD · Inflammatory Bowel Diseases · IF 4.5 · PubMed ↗Permalink
IBD prospective cohort · n=185 · Sep 1, 2026 · Inflamm Bowel Dis · IF 4.5

Five-year efficacy and safety of guselkumab for moderately to severely active Crohn's disease: Results from the phase 2 GALAXI 1 trial.

New therapyCrohn's diseasebiologicstherapeutic drug monitoring
Clinical takeawayConsider guselkumab as a long-term maintenance option for moderately to severely active Crohn's disease, including both biologic-naive patients and those with prior biologic failure, given its durable efficacy and favorable safety profile.
What it foundAt 5 years, 97.7% of guselkumab-treated patients with moderately to severely active Crohn's disease achieved clinical remission (as-observed), and 51.7% achieved endoscopic remission, with low rates of serious adverse events, discontinuations due to adverse events, and serious infections.
ContextGuselkumab, an IL-23p19 inhibitor, shows durable efficacy in Crohn's disease, extending prior phase 2 results to 5 years with a favorable safety profile. The study was not designed for statistical comparisons between groups.
Reinforcessuggested applicable standard· American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562.

Decision at stakeuse of guselkumab for induction and maintenance in moderately to severely active Crohn's disease

MILD-TO-MODERATE / LOWER PROGRESSION RISK: Recommend AGAINST oral mesalamine for induction or maintenance (strong, moderate); sulfasalazine should be considered ONLY for symptomatic mild COLONIC CD (key concept). Controlled ileal-release budesonide 9 mg daily for induction of symptomatic remission in mildly-to-moderately active ileocecal CD (strong, moderate), but recommend AGAINST ileal-release budesonide for MAINTENANCE (strong, low).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text. The rest of this standard includes DIAGNOSIS, PERIANAL FISTULIZING, POST-OPERATIVE and 3 more.

Our full summary of this standard

DIAGNOSIS: Use fecal calprotectin (cutoff >50-100 μg/g) to differentiate inflammatory from noninflammatory disease OF THE COLON (strong, moderate). Ileocolonoscopy with biopsies for suspected CD; biopsy uninvolved mucosa to define histologic extent; small bowel imaging is part of the initial workup (key concepts, ungraded). CT enterography is comparable to MR enterography for small bowel detection; MRE should be used PREFERENTIALLY in patients younger than 35 years and where serial examinations are likely, because of radiation avoidance, MRE is not a blanket first choice. Intestinal ultrasound is a radiation-free ADJUNCT to diagnosis and to monitoring treatment response (key concept, ungraded, not a graded recommendation). Perform routine endoscopic CRC surveillance in Crohn's colitis (strong, moderate). MILD-TO-MODERATE / LOWER PROGRESSION RISK: Recommend AGAINST oral mesalamine for induction or maintenance (strong, moderate); sulfasalazine should be considered ONLY for symptomatic mild COLONIC CD (key concept). Controlled ileal-release budesonide 9 mg daily for induction of symptomatic remission in mildly-to-moderately active ileocecal CD (strong, moderate), but recommend AGAINST ileal-release budesonide for MAINTENANCE (strong, low). MODERATE-TO-SEVERE / HIGHER RISK: SUGGEST AGAINST requiring failure of conventional therapy before initiating advanced therapy (conditional, LOW, a permission to skip step-up, not a mandate to start advanced therapy upfront). Oral corticosteroids for short-term induction only (strong, low). Recommend AGAINST azathioprine 1.5-2.5 mg/kg/d and 6-mercaptopurine 0.75-1.5 mg/kg/d for INDUCTION (strong, moderate), but SUGGEST the same agents and doses for MAINTENANCE after corticosteroid-induced remission (conditional, low). Check TPMT before starting azathioprine/6-MP (strong, low); measure NUDT15 variants in patients of East Asian ancestry and TPMT variants in all patients prior to thiopurine initiation (strong, moderate). Methotrexate up to 25 mg weekly IM/SC for maintenance after corticosteroid induction (conditional, low). Anti-TNF agents (IV infliximab, SC adalimumab, SC certolizumab pegol) for induction and maintenance (strong, moderate). Recommend COMBINATION IV infliximab + thiopurine over either agent alone in patients naive to both (strong, moderate). Vedolizumab IV for induction and maintenance of symptomatic remission (strong, moderate). Ustekinumab (strong, moderate); risankizumab (strong, moderate), and risankizumab over ustekinumab in prior anti-TNF exposure (conditional, low); mirikizumab (strong, moderate); guselkumab IV-then-SC or all-SC (strong, moderate). Upadacitinib for induction and maintenance in patients PREVIOUSLY EXPOSED TO ANTI-TNF (strong, moderate), the ACG does not endorse it as a first-line biologic-naive option. SC infliximab and SC vedolizumab are maintenance options in responders to IV induction (strong, moderate). PERIANAL FISTULIZING: infliximab for induction (strong, moderate); adalimumab (conditional, low); antibiotics added to infliximab or adalimumab (conditional, very low); vedolizumab, ustekinumab, upadacitinib each (conditional, VERY LOW). Drain perianal abscesses and place setons before escalating advanced therapy (key concept). POST-OPERATIVE: endoscopic assessment at 6-12 months after surgically induced remission over no monitoring (conditional, moderate); in LOW post-op recurrence risk, continued observation rather than immediate medical therapy (conditional, very low); imidazole antibiotics (metronidazole) 1-2 g/d after small intestinal resection (conditional, low); in HIGH-risk CD, anti-TNF to prevent endoscopic recurrence (STRONG, moderate) and vedolizumab (CONDITIONAL, low), these two are not co-equal. SURGERY/ABSCESS: intra-abdominal abscess >2 cm should be treated with antibiotics plus a drainage procedure, and immunosuppression HELD until drainage is achieved (conditional, low). DISEASE MODIFIERS: counsel active smokers to quit; use NSAIDs with caution; assess stress, depression and anxiety as part of comprehensive care (key concepts).

American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562. · reviewed 2026-07-21 ↗
Afzali A … GALAXI 1 investigators · Inflammatory Bowel Diseases · IF 4.5 · PubMed ↗Permalink
IBD meta analysis · n=28,354 · Sep 1, 2026 · Inflamm Bowel Dis · IF 4.5

Incidence and predictors of surgical recurrence after primary ileocolic resection in Crohn ileitis: a systematic review and meta-analysis.

New evidenceCrohn's diseaseIBD surgerysystematic reviewmeta-analysis
Clinical takeawayCounsel post-resection Crohn patients that 5-year surgical recurrence risk is ~6% (1 in 17) in the biologics era, with no clear predictors to refine this estimate.
What it foundPooled 5- and 10-year surgical recurrence risks after primary ileocolic resection for Crohn disease were 5.7% (95% CI, 3.9-8.4) and 13.0% (8.3-19.7) in the biologics era (post-2000), a 3-fold decline from prior rates.
ContextRefines prior estimates by isolating ileocolic resections (65% of primary Crohn resections) and showing stable low recurrence since 2000, contradicting older mixed-resection data.
Reinforcessuggested applicable standard· American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562.

Decision at stakeendoscopic assessment at 6-12 months after surgically induced remission over no monitoring

POST-OPERATIVE: endoscopic assessment at 6-12 months after surgically induced remission over no monitoring (conditional, moderate); in LOW post-op recurrence risk, continued observation rather than immediate medical therapy (conditional, very low); imidazole antibiotics (metronidazole) 1-2 g/d after small intestinal resection (conditional, low); in HIGH-risk CD, anti-TNF to prevent endoscopic recurrence (STRONG, moderate) and vedolizumab (CONDITIONAL, low), these two are not co-equal.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text. The rest of this standard includes DIAGNOSIS, PERIANAL FISTULIZING, SURGERY/ABSCESS and 3 more.

Our full summary of this standard

DIAGNOSIS: Use fecal calprotectin (cutoff >50-100 μg/g) to differentiate inflammatory from noninflammatory disease OF THE COLON (strong, moderate). Ileocolonoscopy with biopsies for suspected CD; biopsy uninvolved mucosa to define histologic extent; small bowel imaging is part of the initial workup (key concepts, ungraded). CT enterography is comparable to MR enterography for small bowel detection; MRE should be used PREFERENTIALLY in patients younger than 35 years and where serial examinations are likely, because of radiation avoidance, MRE is not a blanket first choice. Intestinal ultrasound is a radiation-free ADJUNCT to diagnosis and to monitoring treatment response (key concept, ungraded, not a graded recommendation). Perform routine endoscopic CRC surveillance in Crohn's colitis (strong, moderate). MILD-TO-MODERATE / LOWER PROGRESSION RISK: Recommend AGAINST oral mesalamine for induction or maintenance (strong, moderate); sulfasalazine should be considered ONLY for symptomatic mild COLONIC CD (key concept). Controlled ileal-release budesonide 9 mg daily for induction of symptomatic remission in mildly-to-moderately active ileocecal CD (strong, moderate), but recommend AGAINST ileal-release budesonide for MAINTENANCE (strong, low). MODERATE-TO-SEVERE / HIGHER RISK: SUGGEST AGAINST requiring failure of conventional therapy before initiating advanced therapy (conditional, LOW, a permission to skip step-up, not a mandate to start advanced therapy upfront). Oral corticosteroids for short-term induction only (strong, low). Recommend AGAINST azathioprine 1.5-2.5 mg/kg/d and 6-mercaptopurine 0.75-1.5 mg/kg/d for INDUCTION (strong, moderate), but SUGGEST the same agents and doses for MAINTENANCE after corticosteroid-induced remission (conditional, low). Check TPMT before starting azathioprine/6-MP (strong, low); measure NUDT15 variants in patients of East Asian ancestry and TPMT variants in all patients prior to thiopurine initiation (strong, moderate). Methotrexate up to 25 mg weekly IM/SC for maintenance after corticosteroid induction (conditional, low). Anti-TNF agents (IV infliximab, SC adalimumab, SC certolizumab pegol) for induction and maintenance (strong, moderate). Recommend COMBINATION IV infliximab + thiopurine over either agent alone in patients naive to both (strong, moderate). Vedolizumab IV for induction and maintenance of symptomatic remission (strong, moderate). Ustekinumab (strong, moderate); risankizumab (strong, moderate), and risankizumab over ustekinumab in prior anti-TNF exposure (conditional, low); mirikizumab (strong, moderate); guselkumab IV-then-SC or all-SC (strong, moderate). Upadacitinib for induction and maintenance in patients PREVIOUSLY EXPOSED TO ANTI-TNF (strong, moderate), the ACG does not endorse it as a first-line biologic-naive option. SC infliximab and SC vedolizumab are maintenance options in responders to IV induction (strong, moderate). PERIANAL FISTULIZING: infliximab for induction (strong, moderate); adalimumab (conditional, low); antibiotics added to infliximab or adalimumab (conditional, very low); vedolizumab, ustekinumab, upadacitinib each (conditional, VERY LOW). Drain perianal abscesses and place setons before escalating advanced therapy (key concept). POST-OPERATIVE: endoscopic assessment at 6-12 months after surgically induced remission over no monitoring (conditional, moderate); in LOW post-op recurrence risk, continued observation rather than immediate medical therapy (conditional, very low); imidazole antibiotics (metronidazole) 1-2 g/d after small intestinal resection (conditional, low); in HIGH-risk CD, anti-TNF to prevent endoscopic recurrence (STRONG, moderate) and vedolizumab (CONDITIONAL, low), these two are not co-equal. SURGERY/ABSCESS: intra-abdominal abscess >2 cm should be treated with antibiotics plus a drainage procedure, and immunosuppression HELD until drainage is achieved (conditional, low). DISEASE MODIFIERS: counsel active smokers to quit; use NSAIDs with caution; assess stress, depression and anxiety as part of comprehensive care (key concepts).

American College of Gastroenterology, 'ACG Clinical Guideline: Management of Crohn’s Disease in Adults' (Lichtenstein GR, Loftus EV, Afzali A, et al., Am J Gastroenterol 2025;120(6):1225-1264). DOI 10.14309/ajg.0000000000003465, PMID 40701562. · reviewed 2026-07-21 ↗
Haanappel AEG … de Groof EJ · Inflammatory Bowel Diseases · IF 4.5 · PubMed ↗Permalink

Hepatology· 3

Hepatology systematic review · Sep 1, 2026 · Liver International · IF 6.7

Acceptability and Effectiveness of Point-of-Care HCV Testing in Low- and Middle-Income Countries: A Systematic Review.

New evidenceviral hepatitishealth servicessystematic review
Clinical takeawayConsider advocating for decentralized HCV testing models, including oral-based self-testing, in LMIC settings where centralized lab access is a barrier, particularly for high-risk populations.
What it foundIn LMICs, point-of-care HCV testing with onsite treatment achieved >90% testing/treatment uptake compared to centralized lab testing, and self-testing had 91%-99% acceptability in high-risk groups, with oral-based self-testing showing higher recommendation rates (94%-99%) than blood-based testing (86.1%).
ContextChallenges the reliance on centralized lab testing in LMICs, showing decentralized models can achieve high uptake where traditional systems fail.
Emergingsuggested applicable standard· American Association for the Study of Liver Diseases and Infectious Diseases Society of America (AASLD-IDSA), "Hepatitis C Guidance 2023 Update: AASLD-IDSA Recommendations for Testing, Managing, and Treating Hepatitis C Virus Infection" (Patients With Decompensated Cirrhosis section), 2023

Decision at stakethe use of point-of-care HCV testing in low- and middle-income countries

Cure is defined by quantitative HCV RNA undetectable ≥12 weeks after completing therapy (SVR12), checked with a hepatic function panel; patients without cirrhosis who achieve SVR need no further liver-related follow-up, while patients with cirrhosis continue HCC ultrasound surveillance every 6 months and variceal screening per AASLD guidelines after SVR. Repeat annual HCV RNA testing in anyone with ongoing exposure risk.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Diagnose active infection with HCV antibody testing with reflex HCV RNA PCR (Rating I, A); one-time opt-out anti-HCV testing is recommended for all adults ≥18 years and with each pregnancy (I, B), with annual testing for people who inject drugs, men with HIV who have unprotected sex with men, and MSM on PrEP (IIa, C). Treatment is recommended for all persons with acute or chronic HCV infection EXCEPT those with a short life expectancy that cannot be remediated by HCV therapy, liver transplantation, or another directed therapy. Stage fibrosis noninvasively (FIB-4; biopsy not required). The simplified treatment algorithm applies only to treatment-naive adults and EXCLUDES prior HCV treatment, HBsAg positivity, current pregnancy, known or suspected HCC, prior liver transplantation, and any current or prior episode of decompensated cirrhosis; excluded patients are managed by the genotype/population-specific sections, not the simplified pathway. Treatment-naive WITHOUT cirrhosis (FIB-4 ≤3.25 and no other evidence of cirrhosis): glecaprevir 300 mg/pibrentasvir 120 mg once daily with food × 8 weeks, OR sofosbuvir 400 mg/velpatasvir 100 mg once daily × 12 weeks, both pangenotypic and equally recommended; pretreatment CBC, hepatic function panel, eGFR, quantitative HCV RNA, HIV, HBsAg, pregnancy test within 6 months, plus medication reconciliation for drug-drug interactions. Treatment-naive WITH compensated cirrhosis (Child-Pugh A): glecaprevir/pibrentasvir × 8 weeks for genotypes 1-6, OR sofosbuvir/velpatasvir × 12 weeks for genotypes 1, 2, 4, 5, and 6 only, in genotype 3 with compensated cirrhosis, baseline NS5A resistance testing is required before sofosbuvir/velpatasvir and the presence of Y93H changes the regimen; pretreatment labs within 3 months plus CTP score and liver ultrasound within 6 months. On treatment, no routine laboratory monitoring is required except counseling diabetic patients about hypoglycemia and monitoring INR in patients on warfarin. Decompensated cirrhosis (CTP class B or C, or any prior decompensation): refer to a practitioner with expertise, ideally at a liver transplant center; ALL protease-inhibitor-containing regimens (glecaprevir, grazoprevir, voxilaprevir) are contraindicated. Ribavirin-eligible, treatment-naive: sofosbuvir/velpatasvir + weight-based ribavirin × 12 weeks (all genotypes), or ledipasvir/sofosbuvir + ribavirin × 12 weeks for genotypes 1, 4, 5, 6; ribavirin-ineligible: sofosbuvir/velpatasvir (or ledipasvir/sofosbuvir for GT 1, 4, 5, 6) × 24 weeks without ribavirin; prior sofosbuvir-based or NS5A inhibitor-based treatment failure: sofosbuvir/velpatasvir + weight-based ribavirin × 24 weeks. In CTP class C, start ribavirin at 600 mg/day and increase as tolerated toward weight-based dosing. Cure is defined by quantitative HCV RNA undetectable ≥12 weeks after completing therapy (SVR12), checked with a hepatic function panel; patients without cirrhosis who achieve SVR need no further liver-related follow-up, while patients with cirrhosis continue HCC ultrasound surveillance every 6 months and variceal screening per AASLD guidelines after SVR. Repeat annual HCV RNA testing in anyone with ongoing exposure risk.

American Association for the Study of Liver Diseases and Infectious Diseases Society of America (AASLD-IDSA), "Hepatitis C Guidance 2023 Update: AASLD-IDSA Recommendations for Testing, Managing, and Treating Hepatitis C Virus Infection" (Patients With Decompensated Cirrhosis section), 2023 · reviewed 2026-07-23 ↗
Yee WL … Luchters S · Liver International : Official Journal of the International Association for the Study of the Liver · IF 6.7 · PubMed ↗Permalink
Hepatology review · Sep 2, 2026 · J Hepatology · IF 40.1

Emerging strategies for hepatocellular carcinoma surveillance: abbreviated MRI, biomarkers and benefit stratification.

New evidencehepatocellular carcinomabiomarkercost-effectivenesshealth services
Clinical takeawayConsider NC-aMRI as an alternative to ultrasound for HCC surveillance in patients with cirrhosis or high-risk chronic HBV (e.g., active hepatitis, family history of HCC), particularly where adherence or ultrasound sensitivity is a concern. Note: NC-aMRI avoids contrast but requires further validation for broader adoption. No clinical action yet for blood-based biomarkers: pending validation in prospective studies.
What it foundNon-contrast abbreviated MRI (NC-aMRI) showed superior sensitivity and specificity compared to ultrasound for HCC surveillance in recent trials.
ContextChallenges current guideline-recommended ultrasound + AFP surveillance, which has suboptimal sensitivity and lacks RCT evidence for mortality benefit. Proposes benefit stratification over risk stratification alone.
Emergingsuggested applicable standard· American Association for the Study of Liver Diseases (AASLD), 'AASLD Practice Guidance on prevention, diagnosis, and treatment of hepatocellular carcinoma,' Hepatology, 2023 (78(6):1922-1965).

Decision at stakewhether to adopt abbreviated MRI or biomarker panels for HCC surveillance

No single passage of this standard matched the paper closely enough to quote, so none is shown. The standard is cited above.

Our full summary of this standard

Perform HCC surveillance in adults with cirrhosis of any etiology who are able to benefit from HCC treatment, accordingly, do not enroll patients with Child-Turcotte-Pugh class C cirrhosis unless they are candidates for (or listed for) liver transplantation, and do not surveil those with life-limiting comorbidity (life expectancy <1-2 years) that transplantation cannot remedy, and in select non-cirrhotic chronic HBV carriers at elevated risk (e.g., active hepatitis/high viral load, family history of HCC, African/African-American ancestry, Asian men >40 and Asian women >50; AASLD references risk scores such as PAGE-B but stops short of mandating a specific numeric cutoff). Surveillance is abdominal ultrasound PLUS serum AFP at ~6-month (semiannual) intervals, a change from prior AASLD guidance, which had left AFP optional (Strong recommendation). Pursue diagnostic evaluation for an AFP ≥20 ng/mL or for a rising AFP, defined as a doubling of AFP or an increase on two consecutive tests even if the absolute value is <20 ng/mL. Any suspicious ultrasound observation ≥1 cm, or an inadequate/limited ultrasound, should be evaluated with multiphasic contrast-enhanced CT or MRI interpreted with CT/MRI LI-RADS. AASLD 2023 stages confirmed HCC using the BCLC framework and links stage to therapy (curative resection, ablation, or transplantation within Milan criteria for very-early/early disease; TACE and other locoregional therapy for intermediate disease; systemic therapy for advanced disease). Its first-line systemic options for advanced HCC with preserved liver function (Child-Pugh A) are atezolizumab+bevacizumab OR durvalumab+tremelimumab (STRIDE) as preferred, with sorafenib, lenvatinib, or durvalumab monotherapy as alternatives when the preferred combinations are contraindicated. After potentially curative therapy, continue surveillance for recurrence given high recurrence risk (AASLD monitors with cross-sectional contrast-enhanced imaging, not ultrasound, in the early post-treatment period).

American Association for the Study of Liver Diseases (AASLD), 'AASLD Practice Guidance on prevention, diagnosis, and treatment of hepatocellular carcinoma,' Hepatology, 2023 (78(6):1922-1965). · reviewed 2026-07-23 ↗
Ioannou GN … Rowe IA · Journal of Hepatology · IF 40.1 · PubMed ↗Permalink
Hepatology prospective cohort · n=645 · Sep 1, 2026 · UEG Journal · IF 5.6

Course of Portal Hypertension and Its Prognostic Impact After Liver Transplantation.

New evidenceportal hypertensionliver transplantcirrhosis
Clinical takeawaymonitor platelet counts at 3 months post-LT as a marker of persistent portal hypertension and increased mortality risk
What it foundPersistent thrombocytopenia (< 110 G/L) at 3 months post-LT independently predicted mortality (aHR 2.31, 95% CI 1.01-5.30) after adjustment for MELD, age, CRP, and pre-LT TIPS.
ContextRecent literature from specialty journals suggests that the persistence of portal hypertension after liver transplantation may have a prognostic impact on post-transplant outcomes (pmid_42570327).
Emergingsuggested applicable standard· American Association for the Study of Liver Diseases (AASLD), "Diagnosis, Evaluation, and Management of Ascites, Spontaneous Bacterial Peritonitis and Hepatorenal Syndrome: 2021 Practice Guidance" (Biggins et al.), Hepatology, 2021

Decision at stakemonitoring portal hypertension after liver transplantation

Interpret SAAG to classify the cause: SAAG ≥1.1 g/dL indicates portal hypertension (~97% accuracy), while SAAG <1.1 g/dL points to non-portal-hypertensive (peritoneal) causes such as peritoneal carcinomatosis, tuberculous peritonitis, nephrotic syndrome, or pancreatic/chylous ascites.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Perform a diagnostic paracentesis in all patients with new-onset ascites that is accessible for sampling, and in any patient with cirrhosis and ascites who is emergently admitted to the hospital for any reason, to rule out SBP even in the absence of signs or symptoms of infection (up to one-third of SBP is asymptomatic). Also perform it whenever a patient with ascites develops signs, symptoms, or laboratory abnormalities suggestive of infection, and in patients with tense ascites and AKI to exclude SBP as the cause. LVP/paracentesis is safe even with coagulopathy: elevated prothrombin time (INR >1.5) or thrombocytopenia (platelets <50×10^9/L) is not a contraindication, and routine transfusion of clotting factors or platelets is NOT recommended, with possible exceptions in disseminated intravascular coagulation, or uremia with thrombocytopenia (where desmopressin may be considered, especially with prior bleeding). The initial laboratory investigation of ascitic fluid should include ascitic fluid neutrophil (PMN) count, ascitic fluid total protein, and ascitic fluid albumin plus a simultaneous serum albumin to calculate the serum-ascites albumin gradient (SAAG). Ascitic fluid culture is not part of that routine initial panel but should be obtained whenever SBP is being evaluated (routinely for inpatients and when secondary bacterial peritonitis is suspected); when cultured, inoculate ≥10 mL of fluid into aerobic and anaerobic blood culture bottles at the bedside, before the first dose of antibiotics. Amylase, cytology, glucose, LDH, and mycobacterial (AFB/ADA) or triglyceride testing are not routinely indicated and should be guided by clinical context (e.g., suspected pancreatic, malignant, secondary-bacterial, tuberculous, or chylous ascites). Interpret SAAG to classify the cause: SAAG ≥1.1 g/dL indicates portal hypertension (~97% accuracy), while SAAG <1.1 g/dL points to non-portal-hypertensive (peritoneal) causes such as peritoneal carcinomatosis, tuberculous peritonitis, nephrotic syndrome, or pancreatic/chylous ascites. Within high-SAAG ascites, use ascitic total protein to distinguish the source: total protein <2.5 g/dL suggests cirrhosis (also massive liver metastasis, late Budd-Chiari), whereas total protein ≥2.5 g/dL suggests a postsinusoidal/cardiac source (heart failure, portal vein thrombosis, sinusoidal obstruction syndrome, early Budd-Chiari), directing workup toward right-heart catheterization, hepatic-vein Doppler, and echocardiography. The diagnosis of SBP is established with an ascitic fluid absolute neutrophil (PMN) count >250/mm^3 (with or without a positive culture, and in the absence of a surgically treatable intra-abdominal source of infection). Spontaneous bacterial empyema (SBE) is the analogous spontaneous infection of a pre-existing hepatic hydrothorax, not a parapneumonic effusion, and is established by the same pleural fluid PMN count >250/mm^3, but only after pneumonia and other secondary causes of the effusion have been excluded; despite the term "empyema" it is managed as an infection with antibiotics, and a chest tube should NOT be placed.

American Association for the Study of Liver Diseases (AASLD), "Diagnosis, Evaluation, and Management of Ascites, Spontaneous Bacterial Peritonitis and Hepatorenal Syndrome: 2021 Practice Guidance" (Biggins et al.), Hepatology, 2021 · reviewed 2026-07-23 ↗
Dominik N … Reiberger T · United European Gastroenterology Journal · IF 5.6 · PubMed ↗Permalink

Endoscopy· 3

Endoscopy rct · n=813 · Sep 1, 2026 · UEG Journal · IF 5.6

Acetate- Versus Lactate-Buffered Crystalloids for Prevention of Post-ERCP Pancreatitis in Patients Without Access to Rectal NSAIDs: A Multicentre Double-Blind Randomized Trial.

New evidenceERCPacute pancreatitisendoscopy quality
Clinical takeawayContinue using lactated Ringer's solution as the first-line crystalloid for aggressive hydration in patients at moderate-to-high PEP risk when rectal NSAIDs are unavailable.
What it foundPEP occurred in 12.4% of the LR group and 11.5% of the AC group (RR 0.93; 95% CI, 0.64-1.35; P=0.70), with no severe PEP or fluid overload.
ContextConfirms current practice: lactated Ringer's remains the preferred crystalloid for PEP prevention in settings without rectal NSAIDs.
Reinforcessuggested applicable standard· American College of Gastroenterology, "American College of Gastroenterology Guidelines: Management of Acute Pancreatitis" (Tenner S, Vege SS, Sheth SG, et al.), Am J Gastroenterol 2024;119(3):419-437

Decision at stakeusing lactated Ringer's solution for aggressive hydration to prevent post-ERCP pancreatitis

Give moderately aggressive lactated Ringer's, most important in the first 6-12 hours, reassessing volume status/BUN/HCT at 6 hours (further aggressive hydration has little added benefit after 24-48h).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Diagnose acute pancreatitis (AP) by the Atlanta criteria (2 of 3: characteristic epigastric/LUQ pain, lipase or amylase >3x ULN [lipase preferred for specificity/duration], or characteristic imaging). ACG 2024 stratifies severity risk using SIRS on admission plus bedside risk factors, rising/elevated BUN, rising/elevated hematocrit (>44), obesity (BMI>30), extrapancreatic fluid collections/pleural effusion/infiltrates, altered mental status, and older age/comorbidities, rather than mandating a formal BISAP or APACHE II composite score. Give moderately aggressive lactated Ringer's, most important in the first 6-12 hours, reassessing volume status/BUN/HCT at 6 hours (further aggressive hydration has little added benefit after 24-48h). Start oral low-fat solid food within 24-48h as tolerated in mild disease; if enteral feeding is needed for moderately severe/severe disease, prefer nasogastric over nasojejunal with small-peptide/medium-chain-triglyceride formula and continuous (not bolus/cyclic) feeding; avoid parenteral nutrition if possible. Do not give prophylactic antibiotics, even in severe disease or sterile necrosis; reserve antibiotics for suspected infected necrosis (typically arising 10-14 days in), and choose agents that penetrate pancreatic necrosis while together covering both gut-derived gram-negative enterics and anaerobes, a carbapenem supplies this as monotherapy, whereas a fluoroquinolone or a third-or-higher-generation cephalosporin must be combined with metronidazole; metronidazole alone (anaerobic cover only), or a cephalosporin or a quinolone alone, does not adequately treat infected necrosis. Perform cholecystectomy preferably before discharge for mild acute biliary pancreatitis, and after a second unexplained AP episode even without identified gallstones; reserve ERCP within 24h for AP complicated by cholangitis, with rectal indomethacin +/- pancreatic duct stent and periprocedural hydration to reduce post-ERCP pancreatitis risk. Check triglycerides when gallstones/alcohol are absent (>1000 mg/dL supports a hypertriglyceridemia etiology). For stable pancreatic necrosis, defer surgical, radiological, or endoscopic intervention 4-6 weeks to allow walling-off (step-up approach).

American College of Gastroenterology, "American College of Gastroenterology Guidelines: Management of Acute Pancreatitis" (Tenner S, Vege SS, Sheth SG, et al.), Am J Gastroenterol 2024;119(3):419-437 · reviewed 2026-07-20 ↗
Paik WH … Park DH · United European Gastroenterology Journal · IF 5.6 · PubMed ↗Permalink
Endoscopy meta analysis · n=1,143 · Sep 1, 2026 · GIE · IF 8.0

Diagnostic Accuracy of the Endoscopic Grading of Gastric Intestinal Metaplasia for Detecting Extensive Disease: a Systematic Review and Meta-analysis.

New evidencesystematic reviewmeta-analysisbiomarkerendoscopy quality
Clinical takeawayConsider using EGGIM ≥5 during NBI/BLI endoscopy in adults undergoing upper gastrointestinal endoscopy to identify patients with extensive GIM (OLGIM III-IV) who may benefit from surveillance.
What it foundEGGIM cutoff ≥5 had 90% sensitivity and 92% specificity for detecting extensive GIM (OLGIM III-IV) compared to histological OLGIM staging, with a diagnostic odds ratio of 105.93 and AUC 0.96.
ContextConfirms EGGIM as a valid real-time endoscopic tool for risk stratification in gastric precancerous conditions, aligning with current interest in endoscopic staging over biopsy alone.
Reinforcessuggested applicable standard· European Society of Gastrointestinal Endoscopy (ESGE), European Helicobacter and Microbiota Study Group (EHMSG) and European Society of Pathology (ESP), "Management of epithelial precancerous conditions and early neoplasia of the stomach (MAPS III): Guideline update 2025", Endoscopy, 2025 (Recommendations 31 and 34)

Decision at stakeusing the Endoscopic Grading of Gastric Intestinal Metaplasia (EGGIM) score to risk-stratify patients

Stage with validated endoscopic classifications of atrophy (e.g. Kimura-Takemoto) or intestinal metaplasia (e.g. EGGIM) to stratify gastric cancer risk (suggestion, weaker than the biopsy recommendation).

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

Perform individual gastric risk assessment and staging of precancerous conditions at first-time gastroscopy, irrespective of the patient's country of origin. Use high quality endoscopy with virtual chromoendoscopy (VCE), after proper training, for screening, diagnosis and staging of atrophy and intestinal metaplasia and after endoscopic therapy; VCE guides the biopsy site, with random biopsies taken only when there are no endoscopically suspected changes. Take biopsies from at least two topographic sites, 2 from the antrum/incisura and 2 from the corpus, VCE-guided, in two separate, clearly labeled vials; an additional incisura biopsy is optional, not required. Stage with validated endoscopic classifications of atrophy (e.g. Kimura-Takemoto) or intestinal metaplasia (e.g. EGGIM) to stratify gastric cancer risk (suggestion, weaker than the biopsy recommendation). Follow up patients with extensive endoscopic changes (Kimura C3+ or EGGIM 5+) OR an advanced histological stage that reaches OLGA/OLGIM III/IV, severe atrophy or intestinal metaplasia and/or significant changes in both antrum and corpus rising to stage III/IV, not any intestinal metaplasia or any antrum-plus-corpus involvement on its own, with high quality endoscopy every 3 years, irrespective of country of origin (strong recommendation, moderate quality). Propose NO surveillance for patients with mild to moderate atrophy or intestinal metaplasia restricted to the antrum, in the absence of endoscopic signs of extensive lesions or other risk factors (family history of gastric cancer, incomplete intestinal metaplasia, persistent H. pylori infection), the guideline states this group constitutes most individuals found in clinical practice. Eradicate H. pylori in all patients with precancerous conditions and after endoscopic or surgical therapy. Discontinue or do not start gastric cancer screening or surveillance in asymptomatic individuals over 80, and weigh comorbidities when planning treatment of superficial lesions. Advise smoking cessation; low-dose daily aspirin may be considered for gastric cancer prevention only in selected individuals already at high cardiovascular risk. For visible neoplasia, use ESD for differentiated lesions clinically staged as dysplastic (low or high grade) or intramucosal carcinoma (any size if not ulcerated, or ≤30 mm if ulcerated), with EMR an alternative for Paris 0-IIa lesions ≤10 mm with low likelihood of malignancy. At the population level, endoscopic screening is suggested every 2-3 years in high-risk regions (age-standardized rate >20 per 100,000 person-years), every 5 years in intermediate-risk regions (ASR 10-20) only if cost-effectiveness has been proven, and not at all in low-risk regions (ASR <10).

European Society of Gastrointestinal Endoscopy (ESGE), European Helicobacter and Microbiota Study Group (EHMSG) and European Society of Pathology (ESP), "Management of epithelial precancerous conditions and early neoplasia of the stomach (MAPS III): Guideline update 2025", Endoscopy, 2025 (Recommendations 31 and 34) · reviewed 2026-07-23 ↗
Luu MN … Quach DT · Gastrointestinal Endoscopy · IF 8.0 · PubMed ↗Permalink
Endoscopy meta analysis · n=1,322 · Sep 1, 2026 · J Clin Gastro · IF 2.9

Performance, Efficacy, and Safety of Lubiprostone in Bowel Preparation Regimens: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

New evidencecolonoscopysystematic reviewmeta-analysis
Clinical takeawayConsider lubiprostone adjunct for patients undergoing colonoscopy, given its higher excellent prep rates without added risk, though it does not improve polyp detection.
What it foundLubiprostone adjunct bowel prep doubled excellent prep rates (OR 2.25, 95% CI 1.52-3.33) and reduced poor prep (P=0.009) compared to standard prep alone, with no difference in polyp detection, duration, or adverse events.
ContextConfirms lubiprostone's role in improving prep quality, a known challenge in colonoscopy, without altering detection or safety compared to standard prep.
No standard claimed for this paper

Every paper is compared to the standard governing its question. This one is not: either no standard in the corpus matches it, or the comparison did not hold up on review and was withdrawn rather than published unverified. Both are logged.

Wu Y … Han A · Journal of Clinical Gastroenterology · IF 2.9 · PubMed ↗Permalink

Colorectal· 1

Colorectal prospective cohort · n=730 · Sep 3, 2026 · Am J Gastro · IF 9.8

Impact of Baseline Synchronous Adenoma Burden on the Risk of Metachronous Advanced Neoplasia.

New evidencecolorectal canceradenomacolorectal cancer screeningdysplasia
Clinical takeawayIn patients with a high-risk adenoma, use the presence of additional synchronous adenomas to identify a subgroup at particularly high risk for metachronous advanced neoplasia, reinforcing the importance of their recommended 3-year surveillance interval.
What it foundAmong patients with high-risk findings at baseline, the risk of metachronous advanced colorectal neoplasia was significantly elevated when a high-risk adenoma (HRA) was found with synchronous low-risk adenomas (aIRR 2.56) or with synchronous HRAs (aIRR 3.93), compared to having 3-4 low-risk adenomas alone.
ContextRefines current high-risk stratification by showing meta-ACRN risk is not uniform among conventionally 'high-risk' patients (3-10 LRAs or any HRA); synchronous adenoma burden drives heterogeneity.
Refinessuggested applicable standard· US Multi-Society Task Force on Colorectal Cancer (Gupta S, et al.), "Recommendations for Follow-Up After Colonoscopy and Polypectomy: A Consensus Update by the US Multi-Society Task Force on Colorectal Cancer," Gastroenterology, 2020

Decision at stakeassigning colonoscopy surveillance intervals based on polyp number, size, and histology

After polyp removal, assign the next colonoscopy surveillance interval using USMSTF 2020 based on polyp number, size, and histology (e.g., 1-2 tubular adenomas <10 mm 7-10 years; 3-4 tubular adenomas <10 mm 3-5 years; 5-10 tubular adenomas <10 mm, any adenoma ≥10 mm, or adenoma with tubulovillous/villous histology or high-grade dysplasia 3 years; >10 adenomas 1 year with polyposis evaluation; and for serrated polyps, 1-2 sessile serrated lesions <10 mm 5-10 years, 3-4 sessile serrated lesions <10 mm or a hyperplastic polyp ≥10 mm 3-5 years, and a sessile serrated lesion ≥10 mm or with dysplasia or a traditional serrated adenoma 3 years), and apply the shortest interval indicated when findings are mixed.

From our summary of this standard, unedited — the part the paper bears on. marks omitted text. Our wording, not the guideline's; read the source for its own text.

Our full summary of this standard

After polyp removal, assign the next colonoscopy surveillance interval using USMSTF 2020 based on polyp number, size, and histology (e.g., 1-2 tubular adenomas <10 mm 7-10 years; 3-4 tubular adenomas <10 mm 3-5 years; 5-10 tubular adenomas <10 mm, any adenoma ≥10 mm, or adenoma with tubulovillous/villous histology or high-grade dysplasia 3 years; >10 adenomas 1 year with polyposis evaluation; and for serrated polyps, 1-2 sessile serrated lesions <10 mm 5-10 years, 3-4 sessile serrated lesions <10 mm or a hyperplastic polyp ≥10 mm 3-5 years, and a sessile serrated lesion ≥10 mm or with dysplasia or a traditional serrated adenoma 3 years), and apply the shortest interval indicated when findings are mixed. Confirm complete resection and adequate prep before applying an interval, and use site-check/tumor-board pathways for piecemeal resection and malignant (T1) polyps. Refer for genetic evaluation when Lynch, FAP/AFAP/MAP, or serrated polyposis syndrome criteria are met.

US Multi-Society Task Force on Colorectal Cancer (Gupta S, et al.), "Recommendations for Follow-Up After Colonoscopy and Polypectomy: A Consensus Update by the US Multi-Society Task Force on Colorectal Cancer," Gastroenterology, 2020 · reviewed 2026-07-23 ↗
Chang WY … Chiu HM · American Journal of Gastroenterology · IF 9.8 · PubMed ↗Permalink
Everything else this week79 that cleared the bar

Ranked below the cards above, not excluded: these met the bar and were read and scored the same way. One line each, grouped by subspecialty, highest signal first; click through for the paper.

IBD· 19

Hepatology· 23

Also screened this week64 papers read, not selected

These cleared the journal filter and were read, but were not selected this week. A score means the paper was weighed: below 35 it fell short of the bar; at 35 or above, a check after scoring set it aside. A blank means it was set aside before scoring. Listed for anyone going deeper; no takeaway attached, because none was written. How we choose →

Hepatology· 12

Pancreas/Biliary· 11

Endoscopy· 20

How we choose

the same pipeline every week
01

Scan

Every new paper across 48 vetted GI, hepatology, and general-medicine journals.

02

Screen

Drop what is not a study: letters, editorials, corrections, case reports. Classify the rest.

03

Anchor

Compare each paper to the guideline standard it touches, and record how far it moves it.

04

Verify

An adversarial second pass checks every claim against its cited source.

05

Vet

Each issue is reviewed by a physician editor before it publishes.