Recovery of heart rate variability and baroreflex sensitivity following open heart surgery

Author

Brockmann, G. ; Wessel, N. ; Malberg, H. ; Lange, R. ; Bauernschmitt, R.

Author_Institution

Dept. of Cardiovascular Surg., German Heart Center, Munich

fYear

2006

Firstpage

865

Lastpage

868

Abstract

Dynamic measures of heart rate variability (HRV) and baroreflex sensivity (BRS) may uncover the postoperative course of patients undergoing cardiovascular surgery. 162 patients participated in a prospective study; Cardiovascular signals were recorded the day before, 24 h after surgery, one week and three month after surgery. Time domain parameters of heart rate variability showed a significant (p = 8,9-10~ ) decline 24 h after surgery and a significant recovery (p = 0,00049) first week after surgery. The bradycardic and tachycardic regulation strength regenerated similar. Furthermore the number of tachycardiac regulations decreased significant (p = ) within the first week after surgery. The HRV and BRS parameters of the autonomic system obviously show a tendency towards recovery after coronary artery surgery.

Keywords

electrocardiography; haemodynamics; neurophysiology; surgery; BRS; HRV time domain parameters; autonomic nervous system; baroreflex sensitivity recovery; bradycardic regulation strength; cardiovascular signals; cardiovascular surgery; heart rate variability recovery; open heart surgery; tachycardic regulation strength; Arteries; Baroreflex; Cardiology; Frequency domain analysis; Heart rate; Heart rate variability; Heart valves; Measurement standards; Surgery; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 2006

Print_ISBN

978-1-4244-2532-7

Type

conf

Filename

4511989