Energy Metabolic Adaptation and Cardiometabolic Improvements One Year After Gastric Bypass, Sleeve Gastrectomy, and Gastric Band

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Why the study?

Does bariatric surgery (RYGB, SG, LAGB) compared to a low-calorie diet alter energy expenditure and cardiometabolic markers in obese individuals?

Structured PICO

Does bariatric surgery (RYGB, SG, LAGB) compared to a low-calorie diet alter energy expenditure and cardiometabolic markers in obese individuals?

Population

30 individuals (27 females; mean age, 46 ± 2 years; body mass index, 47.2 ± 1.5 kg/m2) self-selecting bariatric surgery or a low-calorie diet

Intervention

Bariatric surgery: Roux-en-y bypass (RYGB, n=5), sleeve gastrectomy (SG, n=9), or laparoscopic adjustable gastric band (LAGB, n=7)

Comparator

Low-calorie diet (LCD) intervention (800 kcal/d for 8 weeks, followed by weight maintenance, n=9)

Outcome

Changes in energy expenditure (metabolic chamber) and circulating cardiometabolic markers at 8 weeks and 1 yearsurrogate

Metabolic adaptation of approximately 150 kcal/d occurs 1 year after RYGB and SG surgery, accompanied by improvements in cardiometabolic markers.

No takes yet. Share an insight, caveat, or question.

Supports similar metabolic adaptation after RYGB/SG; leaves open comparison to diet and long-term cardiometabolic effects.

Tam et al. (2016) studied this question.

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