Heart rate variability is an indicator for intradialytic hypotension among chronic hemodialysis patients

Background Intradialytic hypotension (IDH) carries adverse impact. Heart rate variability (HRV) represents autonomic cardiac regulation which influences intradialytic blood pressure. We aimed to evaluate the association between IDH and HRV. Methods This prospective study was carried out in a teachin...

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Published in:Clinical and experimental nephrology 2016-08, Vol.20 (4), p.650-659
Main Authors: Chang, Yu-Ming, Shiao, Chih-Chung, Chang, Kuo-Chi, Chen, I-Ling, Yang, Chuan-Lan, Leu, Show-Chin, Su, Hung-Li, Kao, Jsun-Liang, Tsai, Shih-Ching, Jhen, Rong-Na
Format: Article
Language:English
Subjects:
Aged
Female
Heart Rate
Humans
Hypotension - etiology
Hypotension - physiopathology
Kidney Failure, Chronic - physiopathology
Kidney Failure, Chronic - therapy
Male
Medicine
Medicine & Public Health
Middle Aged
Nephrology
Original Article
Prospective Studies
Renal Dialysis - adverse effects
Urology
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Summary:Background Intradialytic hypotension (IDH) carries adverse impact. Heart rate variability (HRV) represents autonomic cardiac regulation which influences intradialytic blood pressure. We aimed to evaluate the association between IDH and HRV. Methods This prospective study was carried out in a teaching hospital in Taiwan from June to August 2010. Adult patients on chronic hemodialysis without active medical conditions were enrolled and received HRV measurements for 4 times (before and during an index hemodialysis session). Patients were categorized by the changes of systolic blood pressure during the index hemodialysis into Group 1 (elevation >20 mmHg), Group 2 (decrease >20 mmHg), and Group 3 (others). Then we compared HRV indices among the three groups, and determined the indicators for IDH. Results One hundred and seventy-one patients (96 women, mean age 64.9 years) were enrolled and categorized into Group 1 ( n  = 47, 27.5 %), Group 2 ( n  = 45, 26.3 %) and Group 3 ( n  = 79, 46.2 %). Comparing with Group 1 and/or Group 3, Group 2 had significantly higher blood pressure at hemodialysis initiation (most p  
ISSN:1342-1751
1437-7799
DOI:10.1007/s10157-015-1189-9