Verónica Vázquez-Velázquez1, Alexandra Rodríguez González2, Samuel Ordoñez Ortega3, Marcela Rodríguez Flores4, Miguel F Herrera5, Juan Pablo Pantoja5, Mauricio Sierra5, Claudia González-Jáuregui Prida6, Juan Eduardo García García4. 1. Obesity and Eating Disorders Clinic, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Col. Belisario Domínguez Sección XVI, Del. Tlalpan, C.P, 014080, Mexico City, Mexico. verovelazquez@yahoo.com. 2. Universidad Iberoamericana , Mexico City, Mexico. 3. Hospital General de Zona 30, Mexico City, Mexico. 4. Obesity and Eating Disorders Clinic, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga No. 15, Col. Belisario Domínguez Sección XVI, Del. Tlalpan, C.P, 014080, Mexico City, Mexico. 5. Department of Surgery, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico. 6. Hospital Medica Sur, Mexico City, Mexico.
Abstract
AIM: The aim of this study is to compare the differences in body composition in patients with obesity with successful weight loss (SWL) and unsuccessful (USWL) 1 year after Roux-en-Y gastric bypass (RYGB). METHODS: We included 36 women and 22 men. After stratifying patients according with SWL (defined as ≥ 50% of excess weight loss), fat-free mass (FFM) and fat mass (FM) trajectories were analyzed in each group. RESULTS: The %FM in SWL women (78%) was lower than USWL (36 vs. 44, p < 0.001). The %FM in SWL men (77%) was lower than USWL (27 vs. 38, p < 0.05). A lower %FM before surgery increased the probability of success (p < 0.05). CONCLUSIONS: SWL patients have a lower %FM, and those with lower pre-surgical %FM are more likely to have SWL 1 year after RYGB.
AIM: The aim of this study is to compare the differences in body composition in patients with obesity with successful weight loss (SWL) and unsuccessful (USWL) 1 year after Roux-en-Y gastric bypass (RYGB). METHODS: We included 36 women and 22 men. After stratifying patients according with SWL (defined as ≥ 50% of excess weight loss), fat-free mass (FFM) and fat mass (FM) trajectories were analyzed in each group. RESULTS: The %FM in SWL women (78%) was lower than USWL (36 vs. 44, p < 0.001). The %FM in SWL men (77%) was lower than USWL (27 vs. 38, p < 0.05). A lower %FM before surgery increased the probability of success (p < 0.05). CONCLUSIONS: SWL patients have a lower %FM, and those with lower pre-surgical %FM are more likely to have SWL 1 year after RYGB.
Entities:
Keywords:
Body composition; Fat mass; Follow-up; Roux-en-Y gastric bypass; Success; Weight loss
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