Correlation between heart rate turbulence and heart rate variability in patients with essential hypertension
- VernacularTitle:原发性高血压患者窦性心率震荡现象及其与心率变异相关性研究
- Author:
Yuamei ZHAO
;
Yongsheng LI
;
Yaobing SHEN
;
Lin LI
- Publication Type:Journal Article
- Keywords:
Primary hypertension;
Heart rate turbulence;
Heart rate variability
- From:
Clinical Medicine of China
2008;24(9):889-891
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the correlation between heart rate turbulence (HRT) and heart rate variability in patients with essential hypertension.Methods 50 cases of essential hypertension were selected and 30 healthy subjects were taken as controls.Turbulence onset (TO) and turbulence slope (TS) were calculafed according to 24 h Holter results of the two groups.The correlation between TO,TS and SDNN of 24 h RR,every-5-min of 24 h RR and rMSDD of RR as well as the correlation between TO and TS Was studied.Results TO in essential hypertension group Was remarkably higher than in control group but TS Was lower.TO and TS were correlated with SDNN, SDANN and rMSDD (r=-0.587,r=0.679,r=0.423,r=0.513,r=0.336,r=0.417)(P<0.05 respectively). Conclusion Systolic HRT before ventricular period is weakened in patients with essential hypertension.TS can be an index in evaluating autonomic nerve function of primary hypertension.
