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Clinical Trials/NCT07238309
NCT07238309RecruitingNot Applicable

A Comparative Study to Evaluate Efficacy of Oversewing Versus Surgical Ligation Clips for Staple Line Reinforcement of the Gastric Pouch to Reduce Post Operative Bleeding in Laparoscopic One Anastomosis Gastric Bypass

Cairo University1 site in 1 country30 target enrollmentStarted: May 18, 2025Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Recruiting
Enrollment
30
Locations
1
Primary Endpoint
Incidence of Clinically Significant Postoperative Bleeding Within 30 Days

Study Overview

Brief Summary

  1. To test if there is a significant differences between Oversewing versus surgical ligation clips for staple line reinforcement of the gastric pouch regarding the reduction of post operative bleeding and the need for blood transfusions in laparoscopic one anastomosis gastric bypass.
  2. To assess whether oversewing or the use of surgical clips is more effective in reducing operative time and Cost analysis in (OAGB).
  3. To Provide evidence-based recommendations on staple line reinforcement techniques in OAGB, emphasizing patient safety and procedural efficiency

Detailed Description

Obesity is a disease related to reduced life expectancy, as well as increased morbidity and mortality. In recent years, bariatric surgery has become an increasingly widespread form of treatment for severe obesity and its associated diseases . The increased spread of bariatric surgery is associated with its long-term reliability and also its high cost-benefit ratio.

According to the International Federation for the Surgery of Obesity and Metabolic Disorders (IFSO) registry (calendar years 2014-2018), there are three main surgical procedures in common use: sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB) and laparoscopic one anastomosis gastric bypass (OAGB) . OAGB, introduced by Rutledge in 1997 is a restrictive and malabsorptive bariatric surgical procedure and is the fourth most performed bariatric technique in Europe and in the Asia/Pacific area, with an increasing trend .

In the last 15 years, several authors have demonstrated the effectiveness of this surgical technique in terms of both weight loss and the resolution of comorbidities, especially type 2 diabetes mellitus (T2DM).

Despite the described advantages, LSG still conveys some risks. Early staple line complications, such as bleeding and leaks, may occur, and their incidence may vary from 1 to 6% . Such complications can be devastating and life-threatening. Besides, they entail additional healthcare-related costs. It has been proposed that staple line complications can be reduced by staple line reinforcement (SLR).

Staple line reinforcement (SLR) has been proposed to decrease the risk of these complications by several options: oversewing the staple line with a running absorbable suture, buttressing it with specific materials or roofing the staple line. Although it has been postulated that there are fewer complications, SLR remains controversial and its effectiveness is still unclear . Some surgeons still have concerns about SLR, either because of Uncertainty about its benefits and/or its financial costs. Moreover, it has been argued that oversewing itself could carry additional risks. The potential for leakage and bleeding could increase due to tearing at the suture penetration point, and the running suture may lead to sleeve stricture and tissue ischemia.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Screening
Masking
None

Eligibility Criteria

Ages
18 Years to 80 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • •✔ Age ≥ 18years old
  • •Sex: both sex
  • •Fit for bariatric surgery
  • •body mass index (BMI) of 40 kg/m 2 or higher or BMI between 35 and 40 kg/m2 with significant comorbidities, such as T2DM, hypertension, OSAS or significant osteo- articular alterations, not responsive to medical therapies
  • •Patients should have tried and failed to lose weight using diet, exercise, and/or medication for at least 6 months
  • •Patients or first guardians accept to participate in the current study
  • •Patients or first guardians accept to provide informed written consent

Exclusion Criteria

  • •Patients less than 18 years old
  • •Patients or first guardians refused to participate in the current study
  • •Patients or first guardians refused to provide informed written consent
  • •All patients with bleeding disorders and patients needing re-exploration for bleeding other than staple line Pregnant or breastfeeding women

Arms & Interventions

Through-and-through sutures

Experimental

through-and-through sutures with 3-0 absorbable monofilament sutures will be used .

Intervention: Oversewing (Procedure)

Titanium Ligation clips

Experimental

Titanium Ligation clips will be used .

Intervention: Surgical Ligation Clips (Procedure)

Outcomes

Primary Outcomes

Incidence of Clinically Significant Postoperative Bleeding Within 30 Days

Time Frame: 30 days after laparoscopic one-anastomosis gastric bypass surgery

Proportion of participants experiencing clinically significant postoperative bleeding within 30 days of laparoscopic one-anastomosis gastric bypass. Clinically significant postoperative bleeding is defined as the occurrence of any of the following events within 30 days after surgery: 1. Re-operation for bleeding, 2. Endoscopic or radiologic intervention to control bleeding, 3. Transfusion of ≥ 1 unit of packed red blood cells for acute postoperative blood loss, or 4. Hemoglobin drop ≥ 2.0 g/dL from immediate postoperative baseline accompanied by hemodynamic instability (systolic blood pressure \< 90 mmHg or requiring vasopressor support). The analysis metric will be the number and percentage of participants (n, %) with at least one bleeding event in each treatment arm. Between-group comparison will use the risk difference with 95 % confidence interval (or the pre-specified statistical test per the statistical analysis plan).

Secondary Outcomes

  • Operative Time(Intraoperative (recorded during procedure))

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Sameh Gamal Abd Elghany

General and Laparoscopic surgeon

Cairo University

Study Sites (1)

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