OOIR: Observatory of International Research

Papers

(The H4-Index of Obesity Surgery is 32. 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 2021-12-01 to 2025-12-01.)

Article	Citations
Answer to: “Prompt Sonographic Assessment of Body Composition After Bariatric Surgery”	446
Reply to Letter to the Editor: One Anastomosis Gastric Bypass (OAGB) with a 150-cm Biliopancreatic Limb (BPL) Versus a 200-cm BPL: a Systematic Review and Meta-Analysis	226
Priority Index for Bariatric Surgery Based on a New Classification of Severity in Obesity	147
Prevalence of Micronutrient Deficiencies in Preoperative Bariatric Patients in a New Zealand Tertiary Centre	121
Correction: Advice of General Practitioner, of Surgeon, of Endocrinologist, and Self-Determination: the Italian Road to Bariatric Surgery	116
Comprehensive Analysis of Improvements in Health-Related Quality of Life and Establishment of QALY Gains in a Government-Funded Bariatric Surgical Program with 5-Year Follow-up	72
Single-Port One Anastomosis Sleeve Gastrectomy with Transit Bipartition: Initial Experience and Technique	65
Correction: The Effect of Diet Composition on the Post-operative Outcomes of Roux-en-Y Gastric Bypass in Mice	64
Collateral Benefit of Systematic Improvement in Bariatric Surgery Outcomes Following a Single Quality Improvement Project for Bleeding	58
Risk of Reopening of the Mesenteric Defects After Routine Closure in Laparoscopic Roux-en-Y Gastric Bypass: a Single-Centre Experience	55
Improvement in Pulmonary Hypertension Following Metabolic and Bariatric Surgery: a Brief Review and Meta-analysis	52
Further Discussion on the IFSO Position Statement	50
Qualitative and Economic Impact of Standardized and Digitalized Operation Room Processes in Obesity Surgery	50
Response to Letter to the Editor: The Association of Helicobacter pylori, Eradication, and Early Complications of Laparoscopic Sleeve Gastrectomy	49
Laparoscopic Roux-en-Y Gastric Bypass to Improve Remission Rates of Type 2 Diabetes Mellitus: a Trial Sequential Analysis	46
Paired Commentary for OBSU-D-24-00337R2 Similar Rates of Symptomatic Marginal Ulcers After One-Anastomosis-Gastric Bypass Compared to Roux-en-Y Gastric Bypass	46
Minimally Invasive Common Bile Duct Stone Management in Gastric Bypass Patients: Laparoscopic Common Bile Duct Exploration with Disposable Bronchoscope	43
Commentary on “Histopathological Examination of 404 Sleeve Gastrectomy Specimens at a Large UK Center and Systematic Review of the Published Literature”	42
Correction to: The Effect of Exercise for the Prevention of Bone Mass Loss After Bariatric Surgery: a Systematic Review and Meta‑analysis	40
Role of Endoluminal Functional Lumen Imaging Probe in Bariatric Surgery and Bariatric Endoscopy	39
Association Between Energy and Macronutrient Intakes and Weight Change After Bariatric Surgery: a Systematic Review and Meta-analysis	39
The Swallowable Intragastric Balloon Combined with Lifestyle Coaching: Short-Term Results of a Safe and Effective Weight Loss Treatment for People Living with Overweight and Obesity	38
Learning Curve for Laparoscopic Sleeve Gastrectomy: a Cumulative Summation (CUSUM) Analysis	38
Beyond the BMI: a Critical Analysis of the Edmonton Obesity Staging System and the New Guidelines for Indications for Metabolic and Bariatric Surgery	37
Long-Term Weight Outcome After Bariatric Surgery in Patients with Melanocortin-4 Receptor Gene Variants: a Case–Control Study of 105 Patients	37

Excess Weight Loss at 6 Months Following Laparoscopic Sleeve Gastrectomy Correlates with the Remission of Hyperuricemia	37
Correlation Between Gastrojejunal Anastomosis Diameter, Distensibility Index, and Weight Regain After Roux-en-Y Gastric Bypass	35
The Impact of Preoperative Dexamethasone Administration on Quality of Recovery Following Laparoscopic Sleeve Gastrectomy: A Prospective Observational Study	35
Refining the Timing of Metabolic and Bariatric Surgery: Insights from the IFSO Proposed Model	35
Exploring Complication Risks and Innovations in Postweight Loss Recovery of Emerging Anti-obesity Medications	34
Risk of Harm from Use of Sodium-Glucose Co-Transporter-2 (SGLT-2) Inhibitors in Patients Pre or Post Bariatric Surgery	34
Appetite Changes in Weight Regain and Weight Maintenance After Roux-en-Y Gastric Bypass	33
Modified Hepatobiliary Scintigraphy for the Diagnosis of Bile Reflux in One-Anastomosis Gastric Bypass Surgery: a Prospective Multicenter Study	32
Evaluating Protein Liquid Supplementation for Enhanced Protein Intake and Adherence at Short-Term After Metabolic and Bariatric Surgery: A Pilot Randomized Controlled Trial	32
Reply Letter: Response to Dr. Mesquita’s Letter on “Robotic Bariatric Surgery Using da Vinci and Hugo RAS Systems: What You Should Know”	32