, Volume 5, Issue 1, pp 55-60
Date: 01 Feb 1995

Gastric Bypass and Vertical Banded Gastroplasty- a Prospective Randomized Comparison and 5-Year Follow-up

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Background: a prospective randomized study was undertaken to compare the outcome of vertical banded gastroplasty (VBG) and gastric bypass (GBP) in patients with clinically severe obesity. Methods: eligibility criteria included Class IV obesity, <50 years old and a history of at least one attempt of non-operative weight loss. Patients were managed conservatively for 3 months prior to surgery. Patients were followed post-operatively and monitored for early and late complications and their weight loss outcome for up to 5 years. Results: 44 patients were recruited. Two patients withdrew within 4 weeks and were excluded. Twenty subjects had a GBP and 22 a VBG. There were no significant differences with respect to age, gender, maximum or pre-operative weight between the groups (p > 0.05). Patients who underwent GBP demonstrated significantly greater post-operative weight loss (p < 0.05) which was apparent from 6 months onwards. There were no deaths, pulmonary emboli, post-operative leaks or wound dehiscence. There were no instances of staple-line disruption. Symptomatic ulcer disease, confirmed endoscopically, developed in 25% of GBP patients. Nine patients developed gallstones post-operatively of whom five were in the VBG and four in the GBP group. Conclusions: weight loss following GBP was maintained, while VBG patients slowly regained.