Title :
Non-baroreflex mediated heart rate variability causes overestimation of baroreflex sensitivity
Author :
Frederiks, J. ; Swenne, CA ; TenVoorde, BJ ; Honzikova, N. ; Levert, JV ; Maan, AC ; Schalij, MJ ; Bruschke, AVG
Author_Institution :
Cardiology Dept., Leiden Univ. Med. Center, Netherlands
Abstract :
Spectral assessment of baroreflex sensitivity (BRS) is hampered by non-baroreflex mediated heart rate variability (HRV), which adds to the baroreflex mediated HRV. Relating HRV (baroreflex output) to blood pressure variability (BPV, baroreflex input) may therefore yield BRS values that are too large. The authors propose to overcome this problem by computing BRS in the Mayer waves (0.05-0.15 Hz), while keeping the non-baroreflex mediated HRV in the high frequency band by 15/min (0.25 Hz) metronome breathing
Keywords :
blood pressure measurement; cardiology; medical signal processing; spectral analysis; 0.05 to 0.15 Hz; 0.25 Hz; Mayer waves; baroreflex sensitivity overestimation; blood pressure variability; metronome breathing; nonbaroreflex mediated heart rate variability; Baroreflex; Blood pressure; Cardiology; Electrocardiography; Feedback; Frequency; Heart rate variability; Lungs; Physiology; Pollution measurement;
Conference_Titel :
Computers in Cardiology 1997
Conference_Location :
Lund
Print_ISBN :
0-7803-4445-6
DOI :
10.1109/CIC.1997.647865
