• Media type: E-Article
  • Title: Estimation of the apnea-hypopnea index in a heterogeneous sleep-disordered population using optimised cardiovascular features
  • Contributor: Papini, Gabriele B.; Fonseca, Pedro; van Gilst, Merel M.; van Dijk, Johannes P.; Pevernagie, Dirk A. A.; Bergmans, Jan W. M.; Vullings, Rik; Overeem, Sebastiaan
  • Published: Springer Science and Business Media LLC, 2019
  • Published in: Scientific Reports, 9 (2019) 1
  • Language: English
  • DOI: 10.1038/s41598-019-53403-y
  • ISSN: 2045-2322
  • Origination:
  • Footnote:
  • Description: AbstractObstructive sleep apnea (OSA) is a highly prevalent sleep disorder, which results in daytime symptoms, a reduced quality of life as well as long-term negative health consequences. OSA diagnosis and severity rating is typically based on the apnea-hypopnea index (AHI) retrieved from overnight poly(somno)graphy. However, polysomnography is costly, obtrusive and not suitable for long-term recordings. Here, we present a method for unobtrusive estimation of the AHI using ECG-based features to detect OSA-related events. Moreover, adding ECG-based sleep/wake scoring yields a fully automatic method for AHI-estimation. Importantly, our algorithm was developed and validated on a combination of clinical datasets, including datasets selectively including OSA-pathology but also a heterogeneous, “real-world” clinical sleep disordered population (262 participants in the validation set). The algorithm provides a good representation of the current gold standard AHI (0.72 correlation, estimation error of 0.56 ± 14.74 events/h), and can also be employed as a screening tool for a large range of OSA severities (ROC AUC ≥ 0.86, Cohen’s kappa ≥ 0.53 and precision ≥70%). The method compares favourably to other OSA monitoring strategies, showing the feasibility of cardiovascular-based surrogates for sleep monitoring to evolve into clinically usable tools.
  • Access State: Open Access