Bariatric surgery appears efficacious compared to st and ard care in reducing BMI .
Weight losses are greatest with diversionary procedures , intermediate with diversionary/restrictive procedures , and lowest with those that are purely restrictive .
Compared with Roux-en-Y gastric bypass , adjustable gastric b and ing has lower weight loss efficacy , but also leads to fewer serious adverse effects
Subtotal gastric exclusion and gastric partitioning: a randomized prospective comparison of one hundred patients.
A r and omized prospect i ve comparison of 50 modified Gomez gastric partitioning to 50 subtotal gastric exclusion ( bypass ) operations  is presented . Smaller pouch sizes than are generally recommended were used , along with accurate calibration of the outlet size by suturing around a 30F bougie in both operations . It is believed that these techniques improved weight loss with minimal increase in side effects , but some increase in the length of hospital stay to ensure adequate fluid intake . Significantly better weight loss and less need for reoperation was found with gastric exclusion , and the complication rates were similar . Either operation requires meticulous attention to detail and follow-up to achieve low mortality and morbidity rates and good weight loss ; but , if these are accomplished , the best end results statistically strongly favor subtotal gastric exclusion
Bariatric surgery appears efficacious compared to st and ard care in reducing BMI .
Weight losses are greatest with diversionary procedures , intermediate with diversionary/restrictive procedures , and lowest with those that are purely restrictive .
Compared with Roux-en-Y gastric bypass , adjustable gastric b and ing has lower weight loss efficacy , but also leads to fewer serious adverse effects