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Is respiratory sinus arrhythmia present in atrial fibrillation? A study using two quantitative methods.

Abstract：

:Two quantitative techniques have been evaluated to examine whether respiratory sinus arrhythmia can be detected in atrial fibrillation. Cyclical changes in heart rate during deep breathing indicating respiratory sinus arrhythmia were seen in 11/15 control patients, but only 1/44 patients with atrial fibrillation. Power spectrum analysis suggested that more subtle variations in heart rate with breathing may be present in some patients with atrial fibrillation where it was not detectable by simpler techniques. These results support the hypothesis that although respiratory sinus arrhythmia is not detectable in atrial fibrillation by conventional means, there may still be some mediation of heart rate either by vagal or extravagal mechanisms.

journal_name

Med Eng Phys

journal_title

Medical engineering & physics

authors

Chandler ST,Trewby PN

doi

10.1016/1350-4533(94)90061-2

subject

Has Abstract

pub_date

1994-07-01 00:00:00

pages

334-7

issue

4

eissn

1350-4533

issn

1873-4030

journal_volume

16

pub_type

临床试验,杂志文章

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