Laparoscopic Roux-en-Y Gastric Bypass Versus Laparoscopic Sleeve Gastrectomy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00667706
Recruitment Status : Unknown
Verified April 2008 by Hadassah Medical Organization.
Recruitment status was:  Not yet recruiting
First Posted : April 28, 2008
Last Update Posted : April 28, 2008
Carmel Medical Center
Information provided by:
Hadassah Medical Organization

Brief Summary:

The sleeve gastrectomy that has been utilized as a first-stage bariatric procedure to reduce surgical risk in high-risk patients by induction of weight loss is now gaining popularity as a standalone procedure for the treatment of morbid obesity. It appears to be a technically easier and/or faster laparoscopic procedure than Roux-en-Y gastric bypass. It brings good weight loss results, in some studies even comparable to the RYGB and Biliopancreatic Diversion with Duodenal Switch.

The mechanism of action is assumed to be purely restrictive, but some neurohumoral interaction may exist. Almost no data exist on the influence of the sleeve gastrectomy on the medical and general quality of life or resolution of comorbidities.

The rates of the comorbidities resolution 12 to 24 months after sleeve gastrectomy has been reported in the range that seems to be higher than for the purely restrictive procedures.

Our goal is to to compare the surgical and weight loss outcomes between the two procedures, their influence on resolution of common comorbidities and on quality of life change.

150 eligible candidates will be randomized into two groups, one will undergo Laparoscopic Sleeve Gastrectomy, the other will have Laparoscopic Roux-en-Y Gastric Bypass done. Detailed evaluation and preoperative questionnaires will be used to obtain demographic and medical data, and quality of life will be assessed.

General metabolic and nutritional work up will be done, and will be reassessed at different intervals up to 5 years, in order to compare the short and long term results of the two procedures.

Condition or disease Intervention/treatment Phase
Morbid Obesity Procedure: laparoscopic operation Sleeve Gastrectomy Procedure: laparoscopic operation Roux-en-Y Gastric bypass Phase 4

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 200 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Prospective Randomized Study of Effects of Laparoscopic Roux-en-Y Gastric Bypass Versus Laparoscopic Sleeve Gastrectomy
Study Start Date : April 2008
Estimated Primary Completion Date : April 2013

Arm Intervention/treatment
Active Comparator: 1
Patients who will undergo Laparoscopic Sleeve Gastrectomy
Procedure: laparoscopic operation Sleeve Gastrectomy
Laparoscopic Sleeve Gastrectomy will be performed employing a 5-6 trocar technique, and includes gastric resection starting 4-5 cm proximal to the pylorus, using a 38 fr. Bougie and endoscopic stapler with blue and green load.

Active Comparator: 2
Patients who will undergo Laparoscopic Roux-en-Y Gastric Bypass
Procedure: laparoscopic operation Roux-en-Y Gastric bypass
Divided LRYGB will employ 5-7 trocars technique, and includes stapled jejunojejunostomy 30-50 cm distal to the Treitz ligament, gastric pouch of 20 cc., and antecolic, antegastric gastrojejunal anastomosis, either two layered hand-sawn, GIA, or EEA-25 -stapled, at surgeons preference. The length of the Roux limb will be 100 centimeters or 150 centimeters in patients with BMI of <50, and >50, respectively.

Primary Outcome Measures :
  1. weight loss [ Time Frame: 5 years ]

Secondary Outcome Measures :
  1. short and long term complication rates, length of stay, need for re-operations efficiency of the procedure in inducing weigh loss and resolution of common co-morbidities [ Time Frame: 5 years ]

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Ages Eligible for Study:   18 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Adult patients with morbid obesity

Exclusion Criteria:

  • Pregnancy,
  • Previous bariatric operation,
  • IBD,
  • Previous bowel or stomach surgery

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Andrei Keidar, MD, Hadassah Medical Organization Identifier: NCT00667706     History of Changes
Other Study ID Numbers: GBVSSG-HMO-CTIL
First Posted: April 28, 2008    Key Record Dates
Last Update Posted: April 28, 2008
Last Verified: April 2008

Additional relevant MeSH terms:
Obesity, Morbid
Nutrition Disorders
Body Weight
Signs and Symptoms