O efeito da gravidade da apneia do sono sobre atividade cardíaca autonômica durante o período noturno em pacientes com apneia obstrutiva do sono

Autores

  • Gulay Ozkececi Afyon Kocatepe University
  • Sevinc Sarinc Ulasli Afyon Kocatepe University
  • Onder Akci Afyon Kocatepe University
  • Alaettin Avsar Afyon Kocatepe University
  • Mehmet Unlu Afyon Kocatepe University
  • Ersel Onrat Afyon Kocatepe University

Palavras-chave:

Frequência cardíaca, Arritmias, cardíacas, Morte súbita cardíaca, Síndromes da apneia do sono, Apneia do sono tipo obstrutiva

Resumo

CONTEXTO E OBJETIVO: Função autonômica cardíaca prejudicada é consequência importante da apneia obstrutiva do sono (AOS). Este prejuízo deve-se principalmente a episódios de hipóxia intermitente após apneias. No entanto, o impacto da gravidade da apneia na função cardíaca autonômica permanece obscuro. O objetivo deste estudo foi avaliar a relação entre gravidade da apneia do sono com turbulência da frequência cardíaca (TFC) e variabilidade da frequência cardíaca (VFC) em pacientes com AOS. DESENHO E LOCAL: Estudo observacional transversal conduzido nos Departamentos de Cardiologia e Doenças Pulmonares, Afyon Kocatepe University, Turkey. MÉTODOS: 106 pacientes com AOS e 27 voluntários saudáveis foram recrutados. Com base nos valores do índice de apneia-hypopneia (IAH), a gravidade da apneia obstrutiva do sono foi classificada assim: AOS leve (IAH ≥ 5 e < 15), AOS moderada (IAH ≥ 15 e ≤ 30) e AOS grave (IAH > 30). Parâmetros da VFC e TFC foram avaliados por meio de gravações de eletrocardiograma digital Holter de 24 horas para todos os sujeitos. RESULTADOS: Os resultados da VFC e TFC foram significativamente menores nos pacientes com OSA, em comparação com indivíduos controle (P < 0,05). No entanto, não houve diferenças significativas em VFC e TFC, entre os três subgrupos de pacientes. Correlações surgiram entre IAH e o parâmetro do intervalo-NN, RMSSD, e entre dessaturação de oxigênio e declive da turbulência (respectivamente; r = -0,22, P = 0,037; e r = -0,28, P = 0,025). CONCLUSÃO: Os resultados da VFC e TFC deterioram em AOS. Parece haver relação entre a gravidade da apneia e tais parâmetros.

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Biografia do Autor

Gulay Ozkececi, Afyon Kocatepe University

MD. Assistant Professor, Department of Cardiology, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey.

Sevinc Sarinc Ulasli, Afyon Kocatepe University

MD. Associate Professor, Department of Pulmonary Diseases, Faculty of Medicine, Hacettepe University, Ankara, Turkey.

Onder Akci, Afyon Kocatepe University

MD. Assistant Professor, Department of Cardiology, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey.

Alaettin Avsar, Afyon Kocatepe University

MD. Professor, Department of Cardiology, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey.

Mehmet Unlu, Afyon Kocatepe University

MD. Professor, Department of Pulmonary Diseases, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey.

Ersel Onrat, Afyon Kocatepe University

MD. Professor, Department of Cardiology, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey.

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Publicado

2016-10-06

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1.
Ozkececi G, Ulasli SS, Akci O, Avsar A, Unlu M, Onrat E. O efeito da gravidade da apneia do sono sobre atividade cardíaca autonômica durante o período noturno em pacientes com apneia obstrutiva do sono. Sao Paulo Med J [Internet]. 6º de outubro de 2016 [citado 10º de março de 2025];134(5):430-6. Disponível em: https://periodicosapm.emnuvens.com.br/spmj/article/view/1143

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