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Obes Surg. 2018 Mar;28(3):864-868. doi: 10.1007/s11695-017-3059-x.

Differences in Body Composition in Patients with Obesity 1 Year After Roux-En-Y Gastric Bypass: Successful Vs. Unsuccessful Weight Loss.

Author information

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.

KEYWORDS:

Body composition; Fat mass; Follow-up; Roux-en-Y gastric bypass; Success; Weight loss

PMID:
29264782
DOI:
10.1007/s11695-017-3059-x
[Indexed for MEDLINE]

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