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Updated: Mar 30, 2026
05:16
Sleeve Gastrectomy in Mice using Surgical Clips
Published on: November 14, 2020
7.6K
Body composition changes in adolescents after laparoscopic sleeve gastrectomy
Gal Dubnov-Raz1, Thomas H Inge2, Michal Ben-Ami3
1Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Summary
Physical activity is key for obese adolescents to reduce body fat after sleeve gastrectomy (SG). This modifiable factor, alongside sex, influences weight and body composition changes one year post-surgery.
Area of Science:
- Pediatric Endocrinology
- Bariatric Surgery
- Adolescent Health
Background:
- Sleeve gastrectomy (SG) is a common bariatric procedure for severely obese adolescents.
- Weight loss post-SG significantly alters body composition.
- Factors influencing these changes in adolescents remain largely undescribed.
Purpose of the Study:
- To identify factors associated with body weight and composition changes in adolescents one year after SG.
- To investigate the impact of physical activity on body composition post-SG.
- To explore predictors of body composition changes following bariatric surgery in adolescents.
Main Methods:
- A cohort of 25 adolescents (16 male, 9 female) underwent SG.
- Measurements included weight, height, BMI, and body fat percentage (bioimpedance) pre-surgery and at 1-year follow-up.
- Data on complications, pre-op weight loss, and post-op physical activity were collected; statistical analyses included repeated-measures ANOVA and linear mixed models.
Main Results:
- One year post-SG, adolescents experienced significant reductions: weight (32%), fat mass (55%), and fat-free mass (9%).
- Males showed greater weight and fat mass reduction than females.
- Increased physical activity correlated with greater body fat reduction in both sexes; age and baseline metrics were not significant predictors.
Conclusions:
- Physical activity is the primary modifiable factor linked to greater body fat reduction in obese adolescents post-SG.
- Sex influences weight and body composition outcomes after SG.
- Further research with larger cohorts is necessary to identify additional predictors of body composition changes.
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