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目的探讨原发性高血压(EH)患者的心脏变时性(CR)和心率变异性(HRV)的关系。方法 EH患者50例,健康对照组30例,行运动平板及24h动态心电图检查,比较2组之间CR和HRV的差别,并分析之间的相关性。结果 EH组高血压组峰值心率、变时性指数、SDNN、PNN50显著低于对照组,LF/HF显著高于对照组,差异有统计学意义(p<0.05);峰值心率及变时性指数与SDNN、PN50显著正相关,与LF/HF显著负相关,差异有统计学意义(p<0.05)。结论 EH患者有显著的CR及HRV的异常,表明EH患者存在心脏自主神经的损害;CR与HRV存在良好相关性。
Objective To investigate the relationship between heart rate variability (HR) and heart rate variability (HRV) in patients with essential hypertension (EH). Methods 50 cases of EH patients, 30 cases of healthy control group, exercise treadmill exercise and 24h Holter examination, the difference between CR and HRV was compared between two groups, and the correlation was analyzed. Results The peak heart rate, time-varying index, SDNN and PNN50 in hypertension group were significantly lower than those in control group (P <0.05), and the peak heart rate and time-varying index Significantly positive correlation with SDNN, PN50, and significant negative correlation with LF / HF, the difference was statistically significant (p <0.05). Conclusions There are significant abnormalities of CR and HRV in patients with EH, indicating that autonomic nerve damage exists in EH patients. There is a good correlation between CR and HRV.