Long-Term Results of a Randomized Trial Comparing Banded-versus-Standard Laparoscopic Roux-en-Y Gastric Bypass
The purpose of the study is comparatively analyze the advantages and disadvantages of banded versus unbanded laparoscopic Roux-en-Y gastric bypass (RYGB).
The outcome variables of the general study included morbidity, maximal weight loss, and late weight regain.
|Morbid Obesity||Procedure: Banded Laparoscopic Roux-en-Y gastric bypass Procedure: Unbanded Laparoscopic Roux- en-Y gastric bypass|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||Long-Term Results of a Randomized Trial Comparing Banded-versus-Standard Laparoscopic Roux-en-Y Gastric Bypass|
- Number of participants with postoperative morbidity [ Time Frame: up to 5 years ]determine any morbidity related to the surgical procedure through the 5 years follow up
- Change from Baseline weight assessed at different time points to determine maximal weight loss, [ Time Frame: 3,6,9 months and 1,2,5 years ]determine changes in weight loss through 5 years follow up, measuring maximal weight loss.
- Changes in weight assessed at different time points to determine weight regain [ Time Frame: 3,6,9 months and 1,2,5 years ]identify changes in weight regain during the postoperative 5 years follow up
|Study Start Date:||May 2003|
|Study Completion Date:||August 2010|
|Primary Completion Date:||March 2005 (Final data collection date for primary outcome measure)|
Active Comparator: Unbanded laparoscopic gastric bypass
Laparoscopic Roux- en-Y gastric bypass without any band around de gastric reservoir
Procedure: Unbanded Laparoscopic Roux- en-Y gastric bypass
A hand-sewn gastrojejunostomy in 2 layers using 3-0 Polyglactin for the internal and 3-0 silk for the external layer.
To ensure a diameter of 1-1.5 cm,a 32F bougie was used to calibrate the gastro jejunum anastomosis. The length of alimentary and biliopancreatic limbs was approximately 150 cm and 50 cm, respectively.
Active Comparator: Banded laparoscopic gastric bypass
Placement of a premeasured band or ring around the gastric reservoir, adjacent to the gastroenterostomy.
Procedure: Banded Laparoscopic Roux-en-Y gastric bypass
A 6.5-cm polypropylene Marlex mesh was placed immediately cephalad to the gastrojejunostomy. The gastrojejunostomy was hand-sewn in 2 layers using 3-0 Polyglactin for the internal and 3-0 silk for the external layer.
The length of alimentary and biliopancreatic limbs was approximately 150 cm and 50 cm, respectively.
Obesity is a public health problem that has grown exponentially worldwide. Bariatric surgery has been recognized as the most effective treatment for morbid obesity. However, the debate about the best surgical procedure is still considerable.
Among a wide range of operations that have been used for morbid obesity, Roux-en-Y gastric bypass (RYGB) has shown an appropriate risk/benefit balance and has achieved a high degree of acceptance in America.
The weight loss pattern in RYGB is characteristic and includes significant eight loss during the first 2 years after surgery, followed by some weight regain after the second or third postoperative year. To prevent this some authors suggest the placement of a premeasured band or ring around the gastric reservoir, adjacent to the gastroenterostomy. This procedure has been called banded RYGB.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01504685
|Principal Investigator:||Miguel F Herrera, MD., PhD||Instituto Nacional de Ciencias Medicas y Nutrición "Salavador Zubirán"|