Khoo, M.C.K. and Blasi, Anna (2013) Sleep-related changes in autonomic control in obstructive sleep Apnea: a model-based perspective. Respiratory Physiology & Neurobiology 188 (3), pp. 267-276. ISSN 1569-9048.
Abstract
This paper reviews our current understanding of the long-term effects of obstructive sleep apnea (OSA) on cardiovascular autonomic function in humans, focusing directly on the knowledge derived from noninvasive measurements of heart rate, beat-to-beat blood pressure (BP), and respiration during wakefulness and sleep. While heart rate variability (HRV) as a means of autonomic assessment has become ubiquitous, there are serious limitations with the conventional time-domain and spectral methods of analysis. These shortcomings can be overcome with the application of a multivariate mathematical model that incorporates BP, respiration and other external factors as physiological sources of HRV. Using this approach, we have found that: (a) both respiratory-cardiac coupling and baroreflex dynamics are impaired in OSA; (b) continuous positive airway pressure therapy partially restores autonomic function; (c) baroreflex gain, which increases during sleep in normals, remains unchanged or decreases in OSA subjects; and (d) the autonomic changes that accompany transient arousal from NREM sleep in normals are largely absent in patients with OSA.
Metadata
| Item Type: | Article |
|---|---|
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences |
| Research Centres and Institutes: | Brain and Cognitive Development, Centre for (CBCD) |
| Depositing User: | Administrator |
| Date Deposited: | 28 May 2013 09:52 |
| Last Modified: | 02 Aug 2023 17:04 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/7037 |
Statistics
Additional statistics are available via IRStats2.
Archive Staff Only (login required)
