Time-varying analysis of the heart rate variability during arousals from sleep

C. Mantaras, M. Mendez, V. Patruno, N. Montano, A. M. Bianchi, S. Cerutti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The goal of this work was to apply a time-varying spectral approach to study the dynamic changes in Heart Rate Variability (HRV) produced by the arousal from sleep in obese patients with and without Obstructive Sleep Apnea (OSA). We studies 10 subjects, group I without OSA and group II with OSA diagnostic. RR intervals series was obtained from ECG records. HRV spectral indexes (HF & LF component) were computed from a time variant AR model. In general, group II has more variability than group I. Results are in agreement with literature for group I. However, group II results don't show statistical differences. Our preliminary results are comparable to others reported. Therefore, this technique allows characterizing transitory phenomena like cardiovascular response to arousals.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Pages4427-4429
Number of pages3
Volume7 VOLS
Publication statusPublished - 2005
Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai, China
Duration: Sep 1 2005Sep 4 2005

Other

Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
CountryChina
CityShanghai
Period9/1/059/4/05

Keywords

  • HRV
  • Obese subjects
  • Sleep fragmentation
  • Time-varying model

ASJC Scopus subject areas

  • Bioengineering

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