Classification of sleep and wake using a novel minimal-contact single-channel device
| Autor: | Sebastian Brato, Jan Geldmacher, Jurgen Gotze, Gerhard Weinreich, Sarah Terjung, Helmut Teschler, Stefanie Werther, Christian Taube |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Sleep disorder
medicine.medical_specialty Neurology medicine.diagnostic_test business.industry Medizin Polysomnography Gold standard (test) medicine.disease 03 medical and health sciences 0302 clinical medicine 030228 respiratory system Physiology (medical) Internal medicine Heart rate medicine Breathing Cardiology Sleep (system call) Sleep onset business 030217 neurology & neurosurgery |
| Popis: | Polysomnography (PSG) is the gold standard for sleep analysis and the diagnosis of sleep-disordered breathing (SDB). As PSG is time-consuming and labor-intensive, it is the last step in a stepwise diagnostic workup. An early preliminary diagnosis can be obtained by a novel single-channel minimal-contact device which is placed under the patient’s mattress topper. This study assessed the diagnostic accuracy of the novel minimal-contact device VitaLog (SWG Sportwerk GmbH & Co. KG, Dortmund, Germany) for sleep–wake classification and measurement of heart rate (HR). The results were compared to PSG. VitaLog is a minimal-contact sensor that does not restrict sleep. The diagnostic accuracy of VitaLog was studied in 49 patients referred to our sleep research unit due to suspected SBD. Results obtained by VitaLog were compared to those of a simultaneous PSG to assess the diagnostic accuracy of VitaLog for sleep–wake classification and measurement of HR. Compared to PSG, the accuracy of HR determined by VitaLog was excellent (r = 0.99) with a bias of 0.15 beats per min (bpm). Regarding total sleep time (TST), we found a good correlation of r = 0.8 and a bias of 14 min. For sleep efficiency (SE) estimated by VitaLog, the correlation was moderate with r = 0.6 with a bias of 4.0%. Sleep latency (SL) and wake after sleep onset (WASO) were underestimated by 1 and 12 min, respectively. VitaLog is a promising approach for the estimation of the sleep-related parameters TST, SE, SL, and WASO based on a minimal-contact sensor. In addition, it measures HR with excellent accuracy. However, algorithm modifications are desired to provide appropriate diagnostic accuracy in all sleep disorder cohorts. |
| Databáze: | OpenAIRE |
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