Evaluation of a single-channel nasal pressure device to assess obstructive sleep apnea risk in laboratory and home environments

Kate Crowley, Shanthakumar M W Rajaratnam, Steven A Shea, Lawrence J Epstein, Charles Czeisler, Steven W Lockley

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32 Citations (Scopus)


To evaluate the sensitivity and specificity of a portable single-channel (intra-nasal pressure) sleep apnea device (ApneaLink) in both the laboratory and at home for assessment of sleep apnea risk in comparison with standard polysomnography (PSG). Methods: Fifty-five participants underwent simultaneous recordings of standard PSG and ApneaLink in the laboratory. Of these, 38 participants also used the ApneaLink device in their own homes for one night. PSG respiratory events were scored using standard criteria. Intra-nasal pressure signals were analyzed using the ApneaLink automated computerized algorithm provided to yield estimates of airflow for detection of apneas and hypopneas. Apnea-hypopnea indices (AHI) were compared.
Original languageEnglish
Pages (from-to)109 - 116
Number of pages8
JournalJournal of Clinical Sleep Medicine
Issue number2
Publication statusPublished - 2013

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