Detection of autonomic modulation in atrial cycle length during atrial fibrillation

Author

Stridh, M. ; Meurling, CJ ; Waktare, J. ; Olsson, SB ; Sörnmo, L.

Author_Institution

Lund Univ., Sweden

fYear

2001

fDate

2001

Firstpage

209

Lastpage

212

Abstract

A new method for estimation of changes in the atrial cycle length during atrial fibrillation is presented. We investigate whether or not respiration, through the autonomic nervous system, modulates the atrial cycle length in patients with permanent atrial fibrillation. Eight patients with permanent atrial fibrillation, AV (arteriovenous) block III and a permanent pacemaker were studied during rest, rhythm-controlled respiration at a rate of 0.125 Hz and rhythm-controlled respiration after full vagal blockade using atropine. Using the new method, it was possible to detect a prominent spectral peak at 0.125 Hz during rhythm-controlled respiration in two of the eight patients; the spectral peaks disappeared after full vagal blockade

Keywords

electrocardiography; modulation; neurophysiology; pacemakers; pneumodynamics; 0.125 Hz; AV block III; arteriovenous block III; atrial cycle length change estimation; atrial fibrillation; atropine; autonomic modulation detection; autonomic nervous system; full vagal blockade; pacemaker; rhythm-controlled respiration; spectral peak; Atrial fibrillation; Autonomic nervous system; Cardiology; Frequency conversion; Frequency estimation; Frequency modulation; Pacemakers; Rhythm; Spectral analysis; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 2001

Conference_Location

Rotterdam

ISSN

0276-6547

Print_ISBN

0-7803-7266-2

Type

conf

DOI

10.1109/CIC.2001.977628

Filename

977628