Title :
Study of heart rate and blood pressure variability during the haemodialysis treatment
Author :
Signorin, M.G. ; Arrigo, G. ; Cerutti, S.
Author_Institution :
Dipt. di Bioingegneria, Politecnico di Milano, Italy
Abstract :
Analysis of variability series obtained from synchronous recordings of ECG and arterial blood pressure (ABP) signals has been applied to 9 patients during haemodialitic treatment. Information about the activity of neural systems controlling the heart has been extracted through autoregressive spectral analysis and estimation of time domain parameters. Hypotension prone (unstable) patients show values of LF/HF ratio, which measures the sympathovagal balance, always lower than hypotension resistant (stables) ones. Results suggest an interpretative hypothesis for which the reduced response of the baroreceptive mechanism in unstable patients could be responsible for the hypotensive crises.
Keywords :
autoregressive processes; biocontrol; cardiovascular system; electrocardiography; haemodynamics; neurophysiology; patient treatment; spectral analysis; time-domain analysis; ECG; LF/HF ratio; arterial blood pressure signals; autonomic control; autoregressive spectral analysis; baroreceptive mechanism reduced response; blood pressure variability; cardiovascular functions; haemodialysis treatment; heart rate; hypotension prone patients; hypotension resistant ones; hypotensive crises; neural system activity; patients; sympathovagal balance; synchronous recordings; time domain parameters; unstable patients; variability series; Arterial blood pressure; Blood pressure variability; Control systems; Data mining; Electrocardiography; Heart rate; Medical treatment; Signal analysis; Spectral analysis; Time domain analysis;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1106563
