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Reliability of SleepStrip as a screening test in obstructive sleep apnea patients

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A Letter to the Editors to this article was published on 05 October 2014

Abstract

Obstructive sleep apnea syndrome (OSAS) is a common sleep disorder and related to multiple conditions that cause mortality in adults. In the present study, reliability of SleepStrip, a disposable screening device for detection of OSAS, is tested. In this prospective, nonrandomized double-blinded single cohort study at an academic health center, the performance of the SleepStrip in detecting respiratory events and establishing an SleepStrip score (Sscore) in domestic use were compared to the apnea–hypopnea index (AHI) obtained by the standard polysomnography (PSG) recordings in the sleep laboratory. Forty-one patients who have the PSG results participated the study and wore the SleepStrips at home. Test efficiency rate was 75 % and there was a positive correlation between PSG-AHI scores and Sscores (r = 0.71, p < 0.001). However, diagnostic accuracy analysis showed that the correlation between Sscores and PSG-AHI scores were significant only at AHI > 30 levels. The SleepStrip has 100 % specificity and positive predictive values, but it also has low negative predictive and sensitivity values. The SleepStrip is not a reliable screening test in differential diagnosis among simple snorers, mild, moderate and severe OSAS patients. However, high Sscores highly indicate the presence of moderate–severe OSAS. We can safely send these patients to split-night PSG and continuous, automatic, bi-level positive airway pressure (CPAP/BPAP/APAP) titration at the same night. The SleepStrip may increase the effective use of the sleep laboratories.

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Authors and Affiliations

  1. Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine, Bülent Ecevit University, KBB AD, Kozlu, 67600, Zonguldak, Turkey

    Aykut Erdem Dinç & Murat Damar

  2. Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine, Gazi University, Ankara, Turkey

    Metin Yılmaz, Hakan Tutar, Utku Aydil, Yusuf Kızıl & Yusuf K. Kemaloğlu

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  1. Aykut Erdem Dinç
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  2. Metin Yılmaz
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  3. Hakan Tutar
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  4. Utku Aydil
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  5. Yusuf Kızıl
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  6. Murat Damar
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  7. Yusuf K. Kemaloğlu
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Correspondence to Aykut Erdem Dinç.

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Dinç, A.E., Yılmaz, M., Tutar, H. et al. Reliability of SleepStrip as a screening test in obstructive sleep apnea patients. Eur Arch Otorhinolaryngol 271, 2813–2818 (2014). https://doi.org/10.1007/s00405-014-3087-2

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  • DOI: https://doi.org/10.1007/s00405-014-3087-2

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