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  • 1.9
    Impact Factor
  • 2.1
    CiteScore
  • 20 days
    Submission to First Decision
  • 5 days
    Acceptance to Publication

Gastrointestinal Disorders

Gastrointestinal Disorders is an international, open access, peer-reviewed journal on gastroenterology, published quarterly online by MDPI. The Robotic Global Surgical Society (TROGSS) is affiliated with Gastrointestinal Disorders and its members receive discounts on the article processing charges.
  • Open Access— free for readers, with article processing charges (APC) paid by authors or their institutions; authors retain copyright.
  • High Visibility: indexed within Scopus, ESCI (Web of Science), FSTA, and other databases.
  • Journal Rank: CiteScore - Q2 (Immunology and Microbiology (miscellaneous))
  • Rapid Publication: manuscripts are peer-reviewed and a first decision is provided to authors approximately 19.6 days after submission; acceptance to publication is undertaken in 4.6 days (median values for papers published in this journal in the first half of 2026).
  • Recognition of Reviewers: Reviewers whose reports are timely and of high quality receive an APC discount voucher for a future publication in an MDPI journal. Become a reviewer.
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All Articles (399)

  • Systematic Review
  • Open Access

Background/Objectives: GLP-1 and dual GLP-1/GIP receptor agonists (GLP-1 RAs) delay gastric emptying, increasing residual gastric content (RGC) during upper endoscopy (EGS) under standard fasting. Concurrent colonoscopy requires 24–48 h of a clear-liquid diet and osmotic bowel preparation, which may mitigate this risk without drug interruption. We conducted a systematic review and meta-analysis to quantify RGC rates in GLP-1 RA users undergoing combined same-session EGS and colonoscopy compared with EGS alone. Methods: MEDLINE and Cochrane CENTRAL were searched without date restriction. We included studies enrolling adults on GLP-1 RAs undergoing elective EGS with or without concurrent colonoscopy. The primary outcome was clinically significant RGC at the time of endoscopy. Random-effects inverse-variance meta-analysis was performed. Risk of bias was assessed with ROBINS-I and RoB 2. Certainty of evidence was assessed using the GRADE framework. Results: Of 1683 records identified, eight studies met eligibility criteria and were included. RGC rates in combined-procedure groups ranged from 0% to 4.9%. Pooled analysis demonstrated significantly higher odds of RGC among EGS-alone patients (OR 3.76, 95% CI 2.81–5.03; I2 = 0%). The effect was consistent across observational studies (OR 3.71, 95% CI 2.77–4.96; I2 = 0%) and directionally equal in the single RCT. No procedure was aborted due to RGC in the combined-procedure groups. Conclusions: In adults on GLP-1 RAs, concurrent colonoscopy with standard bowel preparation appears to effectively mitigate RGC risk during same-session EGS across eight studies with consistent, large-magnitude effect estimates. These findings support the hypothesis that bowel preparation achieves adequate gastric emptying, potentially obviating routine GLP-1 RA interruption in this procedural context.

Gastrointest. Disord.

12 November 2026

PRISMA flow diagram.
  • Article
  • Open Access

Intra- and Inter-Observer Agreement of Different Endoscopic Classification Systems for Esophageal Varices

  • Juan Cristóbal Gana,
  • María José de la Piedra and
  • Alejandro Villalón
  • + 5 authors

Background/Objectives: Variceal size and red wale marks determine hemorrhage risk and guide management in portal hypertension, so a reproducible classification is essential. The most widely used systems are Calès, Japanese Research Society for Portal Hypertension (JRSPH), and American Association for the Study of Liver Diseases (AASLD). We aimed to determine intra- and inter-observer concordance for variceal size using the mentioned classifications, and propose a simplified binary classification system based on the complete disappearance of the variceal relief during air insufflation. Methods: Descriptive cross-sectional study, using videos of esophagogastroduodenoscopy from pediatric and adult patients with esophageal varices, which were evaluated twice by three expert endoscopists. Cohen’s Kappa was used to assess agreement between two measurements, and Fleiss’s Kappa to evaluate the agreement of all three observers. Because some patients contributed more than one recording, confidence intervals were obtained by bootstrap resampling at the patient level. Results: A total of 78 videos were evaluated (58 adult, 20 pediatric). Intra-observer concordance for variceal size classification systems was: Calès κ = 0.41, JRSPH κ = 0.40, AASLD κ = 0.50, and new classification κ = 0.47. Inter-observer agreement was: Calès κ = 0.39, JRSPH κ = 0.24, AASLD κ = 0.31, and new classification κ = 0.47. Conclusions: Agreement for the commonly used variceal size classifications ranged from fair to moderate. Our proposed insufflation-based classification was the only system to achieve moderate agreement both within and between observers, offering a simpler criterion aligned with the treat-versus-observe decision. It should be regarded as a promising proposal rather than a validated tool: prospective multicenter validation against variceal bleeding outcomes is required before clinical use.

Gastrointest. Disord.

12 November 2026

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  • Case Report
  • Open Access

DEBIRI in Hepatic Malignancy: A Six-Patient Case Series in Indonesia

  • Rio Hermawan,
  • Koesbandono and
  • Gilbert Sterling Octavius
  • + 1 author

Irinotecan-loaded drug-eluting bead transarterial chemoembolization (DEBIRI) has an established but evolving evidence base for colorectal liver metastases, while its use in small-cell lung cancer (SCLC) liver metastases remains poorly characterized. To the best of our knowledge, this is the first published report of DEBIRI use from Indonesia. We describe a single-center case series of patients treated for colorectal liver metastases and small-cell lung cancer liver metastases. Six patients underwent DEBIRI at a tertiary oncology center: five with colorectal liver metastases and one with SCLC liver metastases. Clinical characteristics, procedural details, imaging response, toxicity, and outcomes were retrospectively reviewed. ECOG performance status ranged from 0 to 2. Cumulative irinotecan doses ranged from 40 to 360 mg across one to three sessions. Technical success was achieved in all procedures. Among five patients with evaluable follow-up, four had documented progression between 2.6 and 7.8 months, while one remained progression-free at last follow-up at 3.7 months. Three patients with CRLM demonstrated stable disease followed by documented progression at 3.7, 5.1, and 7.8 months. The SCLC case demonstrated progressive disease approximately 3 months after DEBIRI and subsequently showed a marked metabolic response following systemic chemotherapy. DEBIRI was technically feasible across colorectal liver metastases and SCLC with liver metastases. The colorectal cases were broadly consistent with published evidence, while the SCLC case is hypothesis-generating.

Gastrointest. Disord.

3 November 2026

A 73-year-old woman with colorectal cancer and hepatic metastases. (A) Coronal reformatted arterial-phase CT demonstrates multiple irregular hypodense lesions involving both hepatic lobes (arrows), consistent with colorectal cancer metastases. (B) Pre-DEBIRI angiography demonstrates numerous hypervascular tumors involving both hepatic lobes, predominantly the right lobe. (C,D) Post-DEBIRI angiography demonstrates technical success, with marked reduction in tumor vascularity and a substantial decrease in vascular tumor blush.
  • Review
  • Open Access

Autoimmune gastritis (AIG) is a chronic disorder involving an immune response that leads to the destruction of the oxyntic glands, which leads to gastric atrophy, intestinal metaplasia, and nutritional deficiencies. It increases the risk of type 1 gastric neuroendocrine tumors and, although the extent of this association is still disputed, also carries a risk of gastric adenocarcinoma. The present review covers the current understanding of AIG from clinical and pathologic points of view, addressing its pathogenesis, clinical and endoscopic manifestations, histopathological characteristics, diagnosis, management, and surveillance. We also point out recent findings regarding the variability in pathology reporting, clinicians’ interpretation of pathology reports, and the emerging uses of artificial intelligence in the diagnosis and surveillance of AIG, as well as what obstacles still exist before these tools can be used in a clinical setting. Improved recognition of the condition and the establishment of a common diagnostic standard would enable earlier diagnosis, more reliable risk stratification, and a form of surveillance that corresponds to the actual neoplasia risk.

Gastrointest. Disord.

2 November 2026

The histopathological features of autoimmune gastritis: in the gastric body, there is atrophy of the oxyntic glands, dense chronic inflammation and intestinal metaplasia (indicated by a blue arrow), Paneth cell metaplasia (shown by a black arrow), and pseudopyloric gland metaplasia (indicated by a green arrow) (stained with hematoxylin and eosin, original magnification ×20). The photomicrograph is from a de-identified archival specimen in the authors’ institutional files (Department of Pathology and Laboratory Medicine, UTHealth Houston), was prepared by the authors for this review, has not been published previously, and contains no patient-identifying information.

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Gastrointest. Disord. - ISSN 2624-5647