Academic Journal
Autonomic Nervous Function during Haemodialysis Assessed by Spectral Analysis of Heart-Rate Variability
| Title: | Autonomic Nervous Function during Haemodialysis Assessed by Spectral Analysis of Heart-Rate Variability |
|---|---|
| Authors: | Cavalcanti S., Severi S., Chiari L., Avanzolini G., Enzmann G., Bianco F., Panzetta G. |
| Source: | Clinical Science. 92:351-359 |
| Publisher Information: | Portland Press Ltd., 1997. |
| Publication Year: | 1997 |
| Subject Terms: | Male, Blood Volume, Signal Processing, Computer-Assisted, Autonomic control, Heart-rate variability, Hypotension in haemodialysis, Aged, Autonomic Nervous System, Electrocardiography, Female, Heart Rate, Humans, Hypotension, Kidney Failure, Chronic, Middle Aged, Renal Dialysis, 3. Good health, 03 medical and health sciences, 0302 clinical medicine |
| Description: | 1. Short-term autonomic response to haemodialysis-induced hypovolaemia was studied in 30 patients undergoing chronic haemodialysis by analysing power spectra of heart-period variability. Patients were classified as haemodynamically stable (15 patients) and unstable (15 patients) according to their past history of cardiovascular collapse during the treatment. Blood volume, systolic arterial pressure and heart period were measured during sessions that ended without the occurrence of collapse. 2. No significant differences were observed when comparing blood volume, heart rate and arterial pressure of stable and unstable patients during the dialysis, and the two groups could not be distinguished merely on the basis of these haemodynamic parameters. Conversely, spectral analysis of beat-to-beat heart-period variability showed markedly different power patterns: in stable patients power was mainly in the low-frequency (LF) band (0.06–0.15 Hz), whereas in unstable patients it was mainly in the high-frequency (HF) band (0.15–0.4 Hz). 3. The efficiency of the autonomic response to hypovolaemia was evaluated by the ratio between the powers in the LF and HF bands. Stable patients exhibited an LF/HF power ratio systematically greater than unstable patients during the entire dialysis, and on the basis of this index the two groups were clearly separated. 4. Results obtained with spectral analysis lead us to conclude that reduced efficiency in the autonomic control of cardiovascular functions could be the main cause of the haemodynamic instability of patients prone to collapse. |
| Document Type: | Article |
| Language: | English |
| ISSN: | 1470-8736 0143-5221 |
| DOI: | 10.1042/cs0920351 |
| Access URL: | https://pubmed.ncbi.nlm.nih.gov/9176033 https://portlandpress.com/clinsci/article/92/4/351/77144/Autonomic-Nervous-Function-during-Haemodialysis https://www.ncbi.nlm.nih.gov/pubmed/9176033 http://www.clinsci.org/content/92/4/351 https://europepmc.org/article/MED/9176033 https://portlandpress.com/clinsci/article-abstract/92/4/351/77144/Autonomic-Nervous-Function-during-Haemodialysis |
| Accession Number: | edsair.doi.dedup.....5d59201a8a4365cd193b2a81b88783c2 |
| Database: | OpenAIRE |
| ISSN: | 14708736 01435221 |
|---|---|
| DOI: | 10.1042/cs0920351 |