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Laparoscopic and Open Gastric Bypass
Benefits and Risks of Open vs. Laparoscope-Assisted Weight Loss Surgery
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Weight Loss Surgery: Laparoscopic Gastric Bypass (LGBP) vs Open Gastric Bypass (OGBP)

Weight Loss Surgery LGBP/OGBP Study Aim
Laparoscopic gastric bypass (LGBP) is being performed widely as a treatment of choice for morbid obesity. Advantages over open gastric bypass (OGBP) have not been well documented in controlled studies. The aim of this study is to evaluate the early postoperative outcomes after laparoscopic gastric bypass and OGBP using a matched paired analysis.

Weight Loss Surgery LGBP/OGBP Study Methods
80 consecutive laparoscopic gastric bypass patients were matched by age, gender, preoperative BMI, and number of co-morbid medical conditions to 80 OGBP patients. Outcomes included length of stay (LOS), complications, percent excess weight lost ( percentEWL) and change in BMI over 1 year, time to return to normal activities, and quality of life (QOL).

Weight Loss Surgery LGBP
/ OGBP Study Results
Baseline variables were matched (LGBP/OGBP); age 43/42, mean preoperative BMI 44/46, co-morbid conditions 2.5/2.8. Length of stay was significantly shorter in the laparoscopic gastric bypass patients vs. open gastric bypass group (3.6 vs. 4.3 days). There was a trend to more major complications (internal hernias requiring reoperation) in the laparoscopic gastric bypass group that did not reach significance. Minor complications were comparable. Percent excess weight lost was significantly better in the laparoscopic gastric bypass group at 3, 6, and 9 months, but was comparable to the open gastric bypass group at 1 year.

BMI at 1 year was also similar (29 vs. 31). Laparoscopic gastric bypass patients returned to normal activities sooner and had equivalent QOL outcomes.

Weight Loss Surgery LGBP/OGBP Study Conclusion
Laparoscopic gastric bypass provides certain advantages over open gastric bypass. Length of stay time and time to return to normal activities are shorter and early weight loss results may be superior

Source: Obesity Surgery, 1 June 2003, vol. 13, no. 3, pp. 341-346(6)

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