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Physiological Impact of Each Component of the Biliopancreatic Diversion With Duodenal Switch and Sleeve Gastrectomy

Gastrectomy Clinical Trial

Official title:
Physiological Impact of Each Component of the Biliopancreatic Diversion With Duodenal Switch and Sleeve Gastrectomy

Clinical Trial Summary

Bariatric surgery procedures promote weight loss by limiting the amount of food consumed through reduction of the size of the stomach and by decreasing absorption of nutrients through reorganizing or bypassing portions of the small intestine. Among the procedures used to induce weight loss, sleeve gastrectomy (SG) was initially developed in the early 90's as the restrictive component of a biliopancreatic diversion with duodenal switch (BPD-DS). It was then offered by laparoscopy as a staged-approach in order to reduce peri-operative complications in high-risk patients. The second step of the surgery (i.e. the duodenal switch) was planned when sufficient weight loss had been obtained. However, it was observed that some patients experienced appreciable weight loss with the SG alone, and did not require a second-stage surgery, thus avoiding the side-effects of a malabsorptive surgery. This led to the surge in popularity of SG as a stand-alone operation, because of its relative technical simplicity, feasibility, and good outcomes. Multiple mechanisms have been postulated to induce metabolic recovery and weight loss following surgery. The independent effects of each component of the BPD-DS with SG have never been investigated in humans within a well-controlled study design. The general objective of the present project is to assess the impact of each component of the BPD-DS and SG, either combined of separated, on physiological variables potentially responsible for metabolic recovery. Patients will be randomized to undergo one of three surgical sequences: 1) SG followed by BPD-DS one year later; 2) BPD-DS followed by SG one year later; or 3) SG and BPD-DS within a single operation. A series of tests will be performed at baseline, at 1 year, and 2 years after the initial surgery. We propose two Specific Aims to asses 1) the impact of each surgical component on the hormonal determinants of metabolic recovery; and 2) the impact of weight loss responses on subcutaneous and visceral adipose tissue function improvements. This project will help better understand the mechanisms underlying metabolic recovery following weight loss surgery.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Factorial Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment

Related Conditions & MeSH terms

  • Biliopancreatic Diversion With Duodenal Switch
  • Gastrectomy
Clinical Trial Details
NCT number NCT02069223
Study type Interventional
Source Laval University
Contact Marc Lapointe
Phone 4186568711
Email marc.lapointe@criucpq.ulaval.ca
Status Recruiting
Phase N/A
Start date January 2014
Completion date December 2017
View Details
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