Body Composition Fat Loss After Laparoscopic Gastric Banding
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| Bariatric Surgery information Body Composition Fat Loss After Laparoscopic Gastric Banding |
About Adjustable Stomach Band |
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Body Composition Changes and Fat Loss After Laparoscopic Gastric Banding for Morbid Obesity Most reports of outcome following obesity surgery report weight and co-morbidity changes only. Method We studied body composition changes in 17 adult patients (15 F, 2 M, age 43+/-2 years, range 28-58 years), with morbid obesity (initial BMI 40.4+/-4.9 kg/m(2), range 34.7-48.8) who were managed surgically by laparoscopically inserting an adjustable gastric band. Body composition was studied before and after surgery (mean interval of 909+/-51 days, range 441-1155 days) using anthropometry (abdominal circumference, AC, sum of four skinfold thicknesses, SFSUM), whole-body potassium counting (TBK), in vivo neutron activation analysis total body nitrogen (TBProtein) and whole-body dual-energy ray absorptiometry (total body percent fat TBF%, and total body bone mineral density TBBMD). Weight loss over the study period was 23.4+/-2.5 kg with an AC reduction of 20.0+/-4.5 cm ( p<0.008). Results Both SFSUM and TBF% were significantly reduced. Both TBK and TBProtein after normalization for sex and height, were significantly reduced, but the ratio of loss of fat mass to fat-free mass, at 4.4:1 was usual for weight loss, and there was no significant changes in the ratio of potassium to protein. TBBMD, after normalization relative to a young same gender adult, was not significantly changed. In this group of patients, most of the substantial weight loss over a 2- to 3-year period was due to loss of fat mass, with relatively less reduction in the components of fat-free mass. Conclusion Adjustable laparoscopic gastric banding induces fat loss without significant other deleterious effects on body composition. Source: Surgery to Reduce Obesity |