OOIR: Observatory of International Research

Papers

(The H4-Index of BMC Gastroenterology is 29. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-09-01 to 2025-09-01.)

Article	Citations
Esophageal metastasis of renal cell carcinoma resected by endoscopic submucosal dissection: a case report	139
Elevated average maximum intrabolus pressure on high-resolution manometry is associated with esophageal dysmotility and delayed esophageal emptying on timed barium esophagram	113
Isolated dextrogastria with eventration of right hemidiaphragm and hiatal hernia in an adult male	78
Restarting elective endoscopy safely amidst an evolving pandemic and the impact of patient perception	59
Sweet’s syndrome and mucosal prolapse polyps in a male patient with ulcerative colitis	58
Association between air temperature and emergency admission for esophagogastric variceal bleeding: a case-crossover study in Beijing, China	58
Segmental reversal of the distal small intestine in a short bowel syndrome model in piglets showed detrimental effect on weight gain	57
An age-group analysis on the efficacy of chemotherapy in older adult patients with metastatic biliary tract cancer: a Japanese cancer registry cohort study	52
Characteristics, clinical outcomes and patient-reported outcomes of patients with ulcerative colitis receiving tofacitinib: a real-world survey in the United States and five European countries	41
Incidentalomas are associated with an increase in liver transplantation in patients with cirrhosis: a single-center retrospective study	39
Typhoid fever presenting with gastric ulcer bleeding	39
Positioning exercises in improving the quality of magnetic-controlled capsule endoscopy	38
The characteristics and clinical relevance of tumor fusion burden in non-EBV (+) gastric cancer with MSS	37
Residual choledocholithiasis after choledocholithotomy T-tube drainage: what is the best intervention strategy?	36
Construction and validation of a survival prognostic model for stage III hepatocellular carcinoma: a real-world, multicenter clinical study	36
Reduced muscle mass is an important part of Global Leadership Initiative on Malnutrition criteria in nutritional diagnosis of hepatocellular carcinoma	34
Expression of unfolded protein response genes in post-transplantation liver biopsies	33
Endoscopic manifestation of intestinal transplant-associated microangiopathy after stem cell transplantation	33
The serum hepcidin and the hepcidin/ferritin ratio in NAFLD: a systematic review and meta-analysis	32
Correction: Positive association of nap duration with risk of non-alcoholic fatty liver disease in an occupational population in Guangdong Province, China: a cross-sectional study	32
SASE, Success and Adverse event Score in Endoscopic Retrograde Cholangiopancreatography: a Novel Grading System	32
A negative correlation of low estimated glucose disposal rate with significant liver fibrosis in adults with NAFLD and obesity: results from NHANES 2017–2020	32
The effect of solid food diet therapies on the induction and maintenance of remission in Crohn’s disease: a systematic review	32
Correction: Clinical and endoscopic characteristics of patients undergoing gastrointestinal endoscopic procedures in Egypt: a nationwide multicenter study	32
ARL9 is upregulated and serves as a biomarker for a poor prognosis in colon adenocarcinoma	30

Retraction Note to: Slug down-regulation by RNA interference inhibits invasion growth in human esophageal squamous cell carcinoma	30
The fate of indeterminate liver lesions: What proportion are precursors of hepatocellular carcinoma?	29
Risk factors for diabetic ketoacidosis in acute pancreatitis patients with type 2 diabetes	29
Clinical practice guidelines for the diagnosis of constipation-predominant irritable bowel syndrome and functional constipation in adults: a scoping review	29