Effects of CPAP on Metabolic Syndrome in Patients With OSA A Randomized Trial

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art_GIAMPA_Effects_of_CPAP_on_Metabolic_Syndrome_in_Patients_2022.PDF (567.35 KB)
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20
Tipo de produção
article
Data de publicação
2022
DOI
Scopus
Web of Science
PubMed
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ELSEVIER
Autores
FREITAS, Lunara S.
LEBKUCHEN, Adriana
CARDOZO, Karina H. M.
CARVALHO, Valdemir M.
Citação
CHEST, v.161, n.5, p.1370-1381, 2022
Projetos de Pesquisa
Unidades Organizacionais
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Resumo
BACKGROUND: OSA is associated with metabolic syndrome (MS), but it is unclear whether OSA treatment with CPAP can revert MS. RESEARCH QUESTION: Does OSA treatment with CPAP per se have effects on the MS reversibility and the associated metabolic, adiposity and vascular parameters? STUDY DESIGN AND METHODS: The TREATOSA-MS trial is a randomized placebo-controlled trial that enrolled adult patients with a recent diagnosis of MS and moderate or severe OSA (apnea-hypopnea index [AHI], >= 15 events/h) to undergo therapeutic CPAP or nasal dilator strips (placebo group) for 6 months. Before and after each intervention, we measured anthropometric variables, BP, glucose, and lipid profile. To control potential-related mechanisms and consequences, we also measured adiposity biomarkers (leptin and adiponectin), body composition, food intake, physical activity, subcutaneous and abdominal fat (visceral and hepatic fat), and endothelial function. RESULTS: One hundred patients (79% men; mean age, 48 +/- 9 years; BMI, 33 +/- 4 kg/m(2); AHI, 58 +/- 29 events/h) completed the study (n = 50 per group). The mean CPAP adherence was 5.5 +/- 1.5 h/night. After 6 months, most patients with OSA randomized to CPAP retained the MS diagnosis, but the rate of MS reversibility was higher than observed in the placebo group (18% vs 4%; OR, 5.27; 95% CI, 1.27-35.86; P = .04). In the secondary analysis, CPAP did not promote significant reductions in the individual components of MS, weight, hepatic steatosis, lipid profile, adiponectin, and leptin, but did promote a very modest reduction in visceral fat and improved endothelial function (all analyses were adjusted for baseline values). INTERPRETATION: Despite the higher rate of MS reversibility after CPAP therapy as compared with placebo, most patients retained this diagnosis. The lack of significant or relevant effects on adiposity biomarkers and depots supports the modest role of OSA in modulating MS.
Palavras-chave
CPAP, metabolic syndrome, metabolism, randomized controlled trial, sleep apnea
URI
https://observatorio.fm.usp.br/handle/OPI/49153
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MCP
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - HC/InCor
Artigos e Materiais de Revistas Científicas - LIM/63
Artigos e Materiais de Revistas Científicas - LIM/64
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