The effect of excessive fat tissue on the measure of bone mineral density by dual X-ray absorptiometry: the impact of substantial weight loss following sleeve gastrectomy.

Purpose: Dual-energy X-ray absorptiometry (DXA) is used in clinical routine to determine areal bone mineral density (aBMD). However, it is not clear whether excessive fat mass or substantial weight loss modify the aBMD measurements. The aim of this study was to evaluate the effect of soft tissue composition on aBMD measured by DXA using a clinical model (i.

Body composition changes in the first month after sleeve gastrectomy based on gender and anatomic site.

Background: Sleeve gastrectomy (SG) induces acute weight loss, but its impact on the very early postoperative changes in body composition (BC) is less clear.

Objectives: This longitudinal study examined the BC changes in the first month after SG according to gender and anatomic site.

Methods: BC (lean tissue mass [LTM] and fat mass [FM]) were determined by dual-energy x-ray absorptiometry in 41 obese patients (33 women, 80.