Validation of a single-channel airflow monitor for screening of sleep-disordered breathing

H. Nakano, T. Tanigawa, Y. Ohnishi, H. Uemori, K. Senzaki, T. Furukawa, S. Nishima

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A simple screening method for sleep-disordered breathing (SDB) is desirable for primary care practices. In the present study, a simple monitor, which utilises a new type of flow sensor and a novel algorithm, was prospectively validated. Home recording for 2 nights with the monitor only, followed by in-laboratory recording with the monitor together with polysomnography, were carried out in consecutive patients (n=100) suspected of SDB. A subjective sleep log was also recorded. The signal was analysed using power spectral analysis, which yielded the flow respiratory disturbance index (flow-RDI). There was no recording failure at home. The reproducibility of the flow-RDI between the 2 nights at home was high (intraclass correlation coefficient=0.92). The sensitivity and specificity of the in-laboratory flow-RDI to diagnose SDB were 0.96 and 0.82, 0.91 and 0.82, and 0.89 and 0.96, for apnoea/hypopnoea index (AHI) ≥5, ≥15 and ≥30 events·h-1, respectively. The diagnostic ability in low-severity subgroups (female, normal weight, AHI <15 events·h-1) was almost comparable to that in the entire group. Excluding subjective waking time on the sleep log from the recording time had no significant effect on the flow-RDI. The single-channel monitor is considered feasible for ambulatory sleep disordered breathing monitoring because of its easy applicability, high reproducibility and relatively high agreement with polysomnography results. Copyright

Original languageEnglish
Pages (from-to)1060-1067
Number of pages8
JournalEuropean Respiratory Journal
Volume32
Issue number4
DOIs
Publication statusPublished - Oct 1 2008

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Sleep Apnea Syndromes
Polysomnography
Apnea
Sleep
Aptitude
Primary Health Care
Weights and Measures
Sensitivity and Specificity

All Science Journal Classification (ASJC) codes

  • Pulmonary and Respiratory Medicine

Cite this

Nakano, H., Tanigawa, T., Ohnishi, Y., Uemori, H., Senzaki, K., Furukawa, T., & Nishima, S. (2008). Validation of a single-channel airflow monitor for screening of sleep-disordered breathing. European Respiratory Journal, 32(4), 1060-1067. https://doi.org/10.1183/09031936.00130907

Validation of a single-channel airflow monitor for screening of sleep-disordered breathing. / Nakano, H.; Tanigawa, T.; Ohnishi, Y.; Uemori, H.; Senzaki, K.; Furukawa, T.; Nishima, S.

In: European Respiratory Journal, Vol. 32, No. 4, 01.10.2008, p. 1060-1067.

Research output: Contribution to journalArticle

Nakano, H, Tanigawa, T, Ohnishi, Y, Uemori, H, Senzaki, K, Furukawa, T & Nishima, S 2008, 'Validation of a single-channel airflow monitor for screening of sleep-disordered breathing', European Respiratory Journal, vol. 32, no. 4, pp. 1060-1067. https://doi.org/10.1183/09031936.00130907
Nakano, H. ; Tanigawa, T. ; Ohnishi, Y. ; Uemori, H. ; Senzaki, K. ; Furukawa, T. ; Nishima, S. / Validation of a single-channel airflow monitor for screening of sleep-disordered breathing. In: European Respiratory Journal. 2008 ; Vol. 32, No. 4. pp. 1060-1067.
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