Repolarisation descriptors and heart rate variability in hemodialysed patients

Title:

Repolarisation descriptors and heart rate variability in hemodialysed patients

Creator:

Poulikakos, D., Banerjee, D., and Marek Malík

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:c4bcb665-7b37-4254-a234-a137afc119e7
uuid:c4bcb665-7b37-4254-a234-a137afc119e7
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, hemodialýza, hemodialysis, TMD, TCRT, QRS-T angle, HRV, autonomic, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

T wave morphology (TWM) descriptors derived from Holter electrocardiograms during hemodialysis (HD) are of potential value for cardiac risk assessment in HD patients. Our knowledge on autonomic regulation of TWM descriptors is limited. The purpose of this study was to investigate the association between TWM parameters and heart rate variability (HRV) during intradialytic monitoring. In each of 81 patients on maintenance HD, continuous electrocardiograms were recorded 5 times during HD on alternate weeks. TWM descriptors were calculated every 5 s in overlapping 10-s ECG segments and Low Frequency (LF) (0.04 Hz to 0.15 Hz), High Frequency (HF) (0.15 Hz to 0.40 Hz) powers of the spectrum of HRV were calculated every five min. The calculated values of TWM and HRV were averaged during the first hour of the recordings and subsequently over all recordings in each subject. Analyzable data for HRV and TWM were available in 71 HD patients (aged 61±15, 36 % diabetics, 32 % females). LF in normalized units correlated positively with Total Cosine R to T (r=0.374, p=0.001) and negatively with T wave morphology dispersion (r=-0.253, p=0.033) after adjusting for heart rate. A heart rate independent association between repolarisation descriptors and HRV exists in HD patients. Autonomic modulation needs to be considered when using TWM characteristics for risk profiling of HD patients., D. Poulikakos, D. Banerjee, M. Malik., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2015 Volume:64 | Number:4

Harvested from:

CDK

Metadata only:

false