Use este identificador para citar ou linkar para este item: https://observatorio.fm.usp.br/handle/OPI/2384
Título: Dynamics of snoring sounds and its connection with obstructive sleep apnea
Autor(es): ALENCAR, Adriano M.SILVA, Diego Greatti Vaz daOLIVEIRA, Carolina BeatrizVIEIRA, Andre P.MORIYA, Henrique T.LORENZI-FILHO, Geraldo
Parte de: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, v.392, n.1, p.271-277, 2013
Resumo: Snoring is extremely common in the general population and when irregular may indicate the presence of obstructive sleep apnea. We analyze the overnight sequence of wave packets - the snore sound - recorded during full polysomnography in patients referred to the Sleep Laboratory due to suspected obstructive sleep apnea. We hypothesize that irregular snore, with duration in the range between 10 and 100 s, correlates with respiratory obstructive events. We find that the number of irregular snores - easily accessible, and quantified by what we call the snore time interval index (STII) - is in good agreement with the well-known apnea-hypopnea index, which expresses the severity of obstructive sleep apnea and is extracted only from polysomnography. In addition, the Hurst analysis of the snore sound itself, which calculates the fluctuations in the signal as a function of time interval, is used to build a classifier that is able to distinguish between patients with no or mild apnea and patients with moderate or severe apnea.
Aparece nas coleções:

Artigos e Materiais de Revistas Científicas - HC/ICHC
Instituto Central - HC/ICHC

Artigos e Materiais de Revistas Científicas - HC/InCor
Instituto do Coração - HC/InCor

Artigos e Materiais de Revistas Científicas - LIM/09
LIM/09 - Laboratório de Pneumologia


Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
art_LORENZI-FILHO_Dynamics_of_snoring_sounds_and_its_connection_with_2013.PDF
  Restricted Access
publishedVersion (English)531.83 kBAdobe PDFVisualizar/Abrir    Solicitar uma cópia

Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.