Effect of Omentopexy on Incisura Angularis Morphology and Gastric Emptying After Laparoscopic Sleeve Gastrectomy

NCT07590206 | Completed

• 1 other identifier: 2023000352-2
• Study Type: interventional
• Target: 36
• Locations: 1 country
• Sites: 1

Brief Summary

This prospective randomized study aimed to evaluate the effect of omentopexy performed during laparoscopic sleeve gastrectomy (LSG) on incisura angularis morphology, gastric emptying time, postoperative dyspeptic symptoms, and early weight loss outcomes. Patients undergoing primary LSG were randomized to either LSG with omentopexy or LSG without omentopexy. Gastric emptying was assessed using scintigraphic gastric emptying studies, and changes in incisura angularis angle were evaluated using intraoperative image analysis. Postoperative symptoms were assessed using the Short Form Leeds Dyspepsia Questionnaire.

Conditions

Obesity & Overweight

Keywords

Obesity; Laparoscopic sleeve gastrectomy; Omentopexy; Dyspepsia

Outcome Measures

Primary Outcomes (1)

• Change in Incisura Angularis Angle

  Changes in the incisura angularis angle were evaluated using vector-based measurements obtained from intraoperative images before and after laparoscopic sleeve gastrectomy.

  Preoperative and postoperative 3 months

Study Arms (2)

LSG With Omentopexy

EXPERIMENTAL

Participants underwent laparoscopic sleeve gastrectomy with omentopexy. Omentopexy was performed by fixation of the greater omentum to the gastric staple line following sleeve gastrectomy.

Procedure: Laparoscopic Sleeve Gastrectomy With Omentopexy

LSG Without Omentopexy

ACTIVE COMPARATOR

Participants underwent standard laparoscopic sleeve gastrectomy without omentopexy.

Procedure: Laparoscopic Sleeve Gastrectomy Without Omentopexy

Interventions

Laparoscopic Sleeve Gastrectomy With Omentopexy PROCEDURE

Laparoscopic sleeve gastrectomy was performed using a standard surgical technique. In addition, omentopexy was performed by fixation of the greater omentum to the gastric staple line in order to stabilize the gastric tube anatomy.

LSG With Omentopexy

Laparoscopic Sleeve Gastrectomy Without Omentopexy PROCEDURE

Standard laparoscopic sleeve gastrectomy was performed without omentopexy.

LSG Without Omentopexy

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients aged between 18 and 65 years Patients scheduled for primary laparoscopic sleeve gastrectomy for obesity treatment Patients who provided written informed consent

You may not qualify if:

• Previous gastrointestinal surgery Hiatal hernia Peptic ulcer disease Esophagitis Pangastritis detected on preoperative endoscopy Inability to tolerate postoperative scintigraphic evaluation

Sponsors & Collaborators

• Ankara University: lead

Study Sites (1)

Ankara University Faculty of Medicine

Ankara, Ankara, 06100, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Obesity; Overweight; Dyspepsia

Condition Hierarchy (Ancestors)

Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms; Signs and Symptoms, Digestive

Study Officials

• Volkan Genç, MD

  Ankara University Faculty of Medicine

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Masking Details: The researcher performing the incisura angularis angle measurements was blinded to the clinical outcomes and group allocation during image analysis.
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor of General Surgery

Model Details: Participants were randomized in a 1:1 ratio into two parallel groups: laparoscopic sleeve gastrectomy with omentopexy and laparoscopic sleeve gastrectomy without omentopexy.

Study Record Dates

• First Submitted: May 11, 2026
• First Posted: May 15, 2026
• Study Start: June 26, 2023
• Primary Completion: December 27, 2024
• Study Completion: December 27, 2024
• Last Updated: May 18, 2026

Record last verified: 2026-05

Data Sharing

• IPD Sharing: Will share

Locations

TU (1)