Heart Rate Variability in White Coat Hypertension
- VernacularTitle:白大衣高血压患者的心率变异性
- Author:
Fang YUAN
;
Lixia WANG
- Publication Type:Journal Article
- Keywords:
White coat hypertension;
Essential hypertension;
Heart rate variability
- From:
Chinese Journal of Hypertension
2006;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the change of heart rate variability(HRV) in patients with white coat hypertension (WCH).Methods Participants were classified as essential hypertension (EH) group (n=35),white coat hypertension (WCH) group (n=35),normotension (NT) group (n=35) based on clinic and 24 h ambulatory blood pressure monitoring.The time and frequency-domain measures of HRV were measured by 24 h ambulatory electrocardiographic recording.Results Compared with NT controls,the standard deviation of normal-to-normal intervals (SDNN),rate-mean-square of the difference of successive RR intervals (RMSSD) and high frequence (HF) in the patients with EH and WCH were significantly decreased[SDNN:NT(132.2?21.5)vs EH(115.9?18.9)vs WCH(120.6?17.5)ms;RMSSD:NT(36.8?9.3)vs EH(28.6?8.9)vs WCH(27.5?8.5)ms;HF:NT(206.8?99.7)vs EH(159.5?86.6)vs WCH(161.1?84.5)ms2/Hz;all P0.05).Conclusion These changes in the parameters of HRV showed cardiac autonomic nerve dysfunction in white coat hypertensive patients.
