Variability of arterial blood pressure and heart rate evaluated by fixed rate atrial pacing

Author

Barnstedt, J. ; Stellmacher, A. ; Dambacher, M. ; Baumert, JH ; Adt, M. ; Frey, AW

Author_Institution

Inst. fur Anaesthesiologie, Deutsches Herzzentrum, Berlin, Germany

fYear

1995

fDate

10-13 Sept. 1995

Firstpage

297

Lastpage

300

Abstract

Variability of arterial blood pressure (BPV) and heart rate (HRV) were investigated in 26 patients shortly after CABG surgery under two conditions: During the first recording patients had sinus rhythm of 65 to 88 beats per minute; after that the atrium was stimulated at 91 to 115 beats per minute with an external pacemaker. HRV and BPV were determined by discrete Fourier analysis of low frequency (LF) and high frequency (HF) spectral power. While HRV decreases in LF to <0.7% and in HF to 9% compared with sinus rhythm, BPV doesn´t change significantly in LF but increases significantly in HF. This supports the idea that normally parasympathetic HF HRV can compensate blood pressure fluctuations due to respiration and that sympathetic vasomotor control does not react in these short beat to beat intervals.

Keywords

biocontrol; cardiology; discrete Fourier transforms; electrocardiography; haemodynamics; medical signal processing; pacemakers; pneumodynamics; spectral analysis; surgery; CABG surgery; arterial blood pressure; discrete Fourier analysis; external pacemaker; fixed rate atrial pacing; heart rate; high frequency spectral power; low frequency spectral power; normally parasympathetic HF HRV; respiration; short beat to beat intervals; sinus rhythm; sympathetic vasomotor control; Arterial blood pressure; Blood pressure; Fluctuations; Frequency; Hafnium; Heart rate; Heart rate variability; Pacemakers; Rhythm; Surgery;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1995

Conference_Location

Vienna, Austria

Print_ISBN

0-7803-3053-6

Type

conf

DOI

10.1109/CIC.1995.482631

Filename

482631