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

Kate E. Crowley, Shantha M W Rajaratnam, Steven Shea, Lawrence J. Epstein, Charles A. Czeisler, Steven W. Lockley

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Study Objectives: 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. Results: There was high sensitivity and specificity for the ApneaLink AHI when compared to simultaneous PSG at comparable AHI levels (AHI ≥ 15 events/h; sensitivity 100%, specificity 92%; positive and negative predictive values 70% and 100%, respectively). Home-measured ApneaLink AHI sensitivity and specificity were also reliable when compared with PSG (AHI ≥ 5, 81% and 77%, respectively; AHI ≥ 15, 67% and 91%), and improved slightly when two nights' data were used (AHI ≥ 5, 88% and 85%; AHI ≥ 15, 67% and 93%). Conclusions: The ApneaLink demonstrated good sensitivity and specificity in quantifying AHI when compared to PSG in a population with and without confirmed OSA. This simple, easyto-use device may be useful in de novo large-scale occupational or underserved community OSA diagnostic programs to identify those with unambiguous disease who need immediate treatment or indicate those who may be at increased risk of OSA.

Original languageEnglish (US)
Pages (from-to)109-116
Number of pages8
JournalJournal of Clinical Sleep Medicine
Volume9
Issue number2
DOIs
StatePublished - 2013
Externally publishedYes

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Obstructive Sleep Apnea
Apnea
Nose
Pressure
Equipment and Supplies
Polysomnography
Sensitivity and Specificity
Sleep Apnea Syndromes

Keywords

  • AHI
  • ApneaLink
  • Home monitoring
  • Obstructive sleep apnea

ASJC Scopus subject areas

  • Clinical Neurology
  • Pulmonary and Respiratory Medicine
  • Neurology

Cite this

Evaluation of a single-channel nasal pressure device to assess obstructive sleep apnea risk in laboratory and home environments. / Crowley, Kate E.; Rajaratnam, Shantha M W; Shea, Steven; Epstein, Lawrence J.; Czeisler, Charles A.; Lockley, Steven W.

In: Journal of Clinical Sleep Medicine, Vol. 9, No. 2, 2013, p. 109-116.

Research output: Contribution to journalArticle

Crowley, Kate E. ; Rajaratnam, Shantha M W ; Shea, Steven ; Epstein, Lawrence J. ; Czeisler, Charles A. ; Lockley, Steven W. / Evaluation of a single-channel nasal pressure device to assess obstructive sleep apnea risk in laboratory and home environments. In: Journal of Clinical Sleep Medicine. 2013 ; Vol. 9, No. 2. pp. 109-116.
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