Comparison of Body Composition Variables between Post-Bariatric Surgery Patients and Non-Operative Controls.

Background: Since bariatric surgery results in massive weight loss, it may be associated with a disproportionate decrease in lean body mass.

Objective: To evaluate body composition in post-bariatric surgery patients who had a successful weight loss at 12 months (>50% excess weight loss) with comparisons to healthy controls who were matched for age, sex and BMI.

Methods: This is an observational analytic study using data from post-bariatric surgery patients who had laparoscopic Roux-en-Y gastric bypass (RYGB) or laparoscopic sleeve gastrectomy (SG) at King Chulalongkorn Memorial Hospital.

Paraganglioma of the organ of Zuckerkandl and FH gene mutation.

Not required for Clinical Vignette.