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Updated: Oct 2, 2026
One-anastomosis Gastric Bypass (OAGB) in Rats
Published on: November 10, 2018
Outcome predictors in morbidly obese recipients of an adjustable gastric band
Luca Busetto1, Gianni Segato, Francesco De Marchi
1Obesity Unit, Department of Medical and Surgical Sciences, University of Padova, Padova, Italy. luca.busetto@unipd.it
Background:
The authors investigated the outcome predictors in obese patients who underwent laparoscopic adjustable banding with the Lap-Band.
Methods:
The 3-year excess weight loss (EWL) and rate of band-related complications (pouch dilatation and port leakage) were analyzed in 260 morbidly obese patients, according to several possible predictive characteristics. Success rate (EWL > 50%), failure rate (EWL < 20%) and weight regain rate (regain of > 10% EWL between 1 and 3 yrs) were considered.
Results:
The Lap-Band produced a 43.0 +/- 22.3% EWL, corresponding to a BMI reduction from 46.6 +/- 7.0 to 36.8 +/- 6.6 kg/m2. Success rate was 35.7%, failure rate was 14.1% and weight regain rate was 20.7%. Pouch dilatation occurred in 32 patients (12.3%), band erosion in 2 (0.8%), port leakage in 74 (28.5%), and port twisting in 2 (0.8%). Major band-related surgery was requested in 11 patients (4.2%) and minor port-related surgery in 62 patients (23.9%). Significant success predictors were found to be age < 40 years and BMI < 50 kg/m2. Significant failure predictors were found to be male sex and non-sweet eating behavior. Significant weight regain predictors were found to be BMI < 50 kg/m2 and the occurrence of a port leakage. Port leakage was significantly more frequent in women and in patients with BMI < 50 kg/m2. The prevalence of pouch dilatation was threefold higher in women than in men.
Conclusions:
Lap-Band was associated with a good outcome and with a low rate of severe complications. The outcome was more influenced by physiological and technical reasons than by psychological or behavioural factors.
