Related Experiment Video
Updated: Jan 7, 2026

Sleeve Gastrectomy in Mice using Surgical Clips
Published on: November 14, 2020
Metabolic and Bariatric Surgery Evolution Over the Past Decades (2009-2024): Insights from the Iranian National
Shahab Shahabi Shahmiri1,2, Abdolreza Pazouki3,4, Seyed Amin Setarehdan3
1Iran University of Medical Sciences, Tehran, Islamic Republic of Iran. shshahabi@yahoo.com.
Background:
Over the past three decades, metabolic and bariatric surgery (MBS) has undergone significant changes in Iran, mirroring global trends and incorporating regional innovations. This study aims to investigate MBS trends in Iran over 15 years (2009-2024), with a focus on demographic patterns and procedural distribution.
Methods:
Data from the Iranian National Obesity Surgery Database (INOSD) provided the basis for a retrospective study. The study encompassed all patients with MBS between 2009 and 2024. The demographic traits, body mass index (BMI), obesity-associated medical disease, surgical operation type, and trends over time were analyzed.
Results:
In total, 55,936 patients were included, most of whom were female (80%). The majority (62%) were aged 25-45 years. With a declining number of patients with BMI > 50 kg/m² over time, most patients fell in the range of 40-50 kg/m². The most common obesity-associated medical problems were hypertension (15%), severe obstructive sleep apnea (12%), type 2 diabetes mellitus (11%), and dyslipidemia (11%). Rising from 2.6% in 2009 to 56% in 2024, sleeve gastrectomy (SG) surpassed Roux-en-Y gastric bypass (RYGB), which decreased from 92% in 2009 to 13% in 2024. Especially in higher BMI patients, one anastomosis gastric bypass (OAGB) demonstrated a consistent rise. Rates of revisional and conversional surgery rose over time, specifically in OAGB.
Conclusions:
With an increasing inclination for SG and OAGB, MBS trends in Iran mirror a worldwide movement toward safer and more effective treatments.
Related Concept Videos
Obesity
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD:
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion
Drug Dosing: Obese Patients
Metabolic States of the Body: Fasting and Starvation

