Correlation between heart rate variability and arteriosclerosis in patients with essential hypertension
10.3969/j.issn.1008-0074.2017.02.09
- VernacularTitle:原发性高血压病人心率变异性与动脉硬化的相关性
- Author:
Jianwu LI
;
Songqing LIN
;
Ming LI
;
Chaofan HE
;
Wei HUANG
;
Yuming HUANG
- Keywords:
Hypertension;
Arteriosclerosis;
Autonomic nervous system
- From:
Chinese Journal of cardiovascular Rehabilitation Medicine
2017;26(2):149-154
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study correlation between heart rate variability (HRV) and arteriosclerosis in patients with essential hypertension (EH).Methods: A total of 139 EH patients from our hospital were enrolled as EH group.According to carotid-femoral pulse wave velocity (PWV), they were divided into normal subgroup (n=65, PWV<9 m/s) and abnormal subgroup (n=74, PWV≥9 m/s).Another 60 healthy adults undergoing physical examination in our hospital during the same period were selected as healthy control group.HRV indexes, PWV, carotid intima-media thickness (IMT) and number of carotid plaques were compared among all groups.Correlation among above indexes were analyzed in EH patients.Results: Compared with healthy control group, there was significant reduction in standard deviation of normal to normal RR intervals in all 5 min segments of the entire recording[SDANN, (142.3±21.4)ms vs.(119.3±16.5)ms], significant rise in low frequency[LF, (341.7±37.9)Hz vs.(695.4±43.3) Hz], high frequency[HF, (519.1±33.6) Hz vs.(636.8±39.5)Hz], LF/HF[(0.6±0.3) vs.(1.0±0.2)], PWV[(7.44±0.82) m/s vs.(11.13±0.65) m/s]and IMT[(1.03±0.24)mm vs.(1.74±0.41)mm]in EH group, P<0.01 all;in EH group, compared with normal PWV subgroup, there was significant reduction in SDANN, and significant rise in LF, HF, LF/HF, IMT and mean number of carotid plaques in abnormal PWV subgroup, P<0.05 or <0.01;Pearson correlation analysis indicated that in EH patients, PWV and IMT were significant inversely correlated with SDANN (r=-0.713,-0.699, P<0.01 both), significant positively correlated with LF, HF, LF/HF and carotid plaques (r=0.506~0.935, P<0.01 all), and PWV was significant positively correlated with IMT (r=0.883, P=0.001).Conclusion: In EH patients, SDANN, LF, HF, LF/HF of HRV are significantly correlated with arteriosclerotic extent.Besides lowering blood pressure , HRV etc.related with artery pathological changs should also be treated.
