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Prevalence of sarcopenia after bariatric surgery: a systematic review and meta-analysis

Authors

Marcela Gomes Reis MEDICAL SCIENCES COLLEGE OF MINAS GERAIS https://orcid.org/0009-0006-4481-1552
Pedro Ivo Campos Medical Sciences College of Minas Gerais https://orcid.org/0000-0002-2004-0654
Renata Adrielle Lima Vieira Federal University of Paraíba, Brazil https://orcid.org/0000-0001-8700-9507
Amanda Aparecida Oliveira Leopoldino Medical Sciences College of Minas Gerais https://orcid.org/0000-0002-3958-7107
Bruno Almeida de Rezende Medical Sciences College of Minas Gerais https://orcid.org/0000-0002-4460-0572
Nathalia Sernizon Guimarães Federal University of Minas Gerais, Brazil https://orcid.org/0000-0002-0487-0500

DOI:

https://doi.org/10.61910/ricm.v8i2.436

Keywords:

Sarcopenia, Bariatric surgery, Mass muscle loss, Epidemiology, Prevalence

Abstract

Introduction: Bariatric surgery, after failed weight loss and comorbidity resolution, can lead to postoperative sarcopenia, characterized by the gradual loss of muscle mass and strength, impacting functionality and quality of life. Objective: This systematic review aims to determine the prevalence of sarcopenia after bariatric surgery. Methods: The protocol was registered on PROSPERO CRD42023447294). Comprehensive searches of electronic databases and journal references, without language restrictions, were conducted. Sarcopenia was defined as a progressive disorder involving muscle mass and function loss. The primary outcome was sarcopenia prevalence after bariatric surgery. Meta-analysis was realized using R software (version 4.1.0). Results: Among 1,445 reviewed studies from databases like MEDLINE, Embase, Web of Science, BVS, LILACS, and BDENF, eight met the criteria. The global sarcopenia prevalence was 32%, with an average age of 42 ± 10 years. It was higherin Roux-en-Y gastric bypass (RYGB) patients (59%). DXA was the primary data collection method (45%). After bariatric surgery, sarcopenia prevalence was 55% after more than a year, 3% within a year, and 24% at one year. Conclusion: The high sarcopenia prevalence highlights the need for healthcare professionals to enhance screening, intervention, and follow-up for this condition. Additional studies are needed to understand associated factors and develop interventions to prevent sarcopenia in this population.