Respiratory variation of the ballistocardiogram during increased respiratory load and voluntary central apnoea.

Details

Serval ID
serval:BIB_DB58C3A5923A
Type
Article: article from journal or magazin.
Collection
Publications
Title
Respiratory variation of the ballistocardiogram during increased respiratory load and voluntary central apnoea.
Journal
European Respiratory Journal
Author(s)
Polo O., Tafti M., Hämäläinen M., Vaahtoranta K., Alihanka J.
ISSN
0903-1936[print], 0903-1936[linking]
Publication state
Published
Issued date
02/1992
Volume
5
Number
2
Pages
257-262
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Abstract
Heavy snoring is associated with increased respiratory variation of the ballistocardiogram (BCG). The cause for this association is not known. Although the BCG is a sensitive method to measure myocardial performance, the validity of the signal as a marker of snoring-related haemodynamic changes has not been tested. The aim of this study was to investigate whether ballistocardiographic respiratory variation (BRV) correlates with intrathoracic pressure variation (IPV). The BRV and the IPV were measured in five healthy, normal-weight, awake adults during normal breathing, during breath-holding with constant intrathoracic pressure, and during breathing against increased respiratory resistance (high IPV). The BCG was recorded with the static charge-sensitive bed (SCSB) and the intrathoracic pressure with an oesophageal balloon. The mean BRV was significantly lower during central apnoea than during free breathing (8.2 versus 29.4% p less than 0.0001). When breathing against increased respiratory load, the BRV increased in a linear manner as function of the IPV (r = 0.68, p less than 0.01). There was significant interindividual variation in the response. We conclude that changes in the BRV reflect changes in the IPV. Further studies are needed to evaluate whether the BCG could be used as a noninvasive alternative to the oesophageal balloon in monitoring changes of respiratory resistance during heavy snoring.
Keywords
Adult, Airway Resistance, Ballistocardiography, Hemodynamics, Humans, Hypertrophy, Male, Monitoring, Physiologic/methods, Respiration/physiology, Respiratory Muscles/pathology, Sleep Apnea Syndromes/physiopathology
Pubmed
Web of science
Create date
24/01/2008 15:55
Last modification date
20/08/2019 16:00
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