慢性肺源性心脏病的心率变异性分析

目的:探讨心率变异性(HRV)对慢性肺源性心脏病病人预后评估的临床价值.方法:对80例慢性肺源性心脏病病人(肺心病组)和80名同期健康体检对象(对照组)进行HRV分析.结果:与对照组比较,肺心病组窦性心搏间期标准差、窦性心搏平均值的标准差、相邻窦性心搏间期之差大于50 ms的心搏个数占总窦性心搏的百分比均显著降低(P<0.01);肺心病组不同程度肺功能损害病人的窦性心搏间期标准差、窦性心搏平均值的标准差、相邻窦性心搏间期之差大于50 ms的心搏个数占总窦性心搏的百分比的差异均有统计学意义(P<0.01).结论:HRV对慢性肺源性心脏病的严重程度和预后评价有重要的临床价值.

The clinical value analysis of the heart rate variability in patients with chronic pulmonary heart disease

Objective:To investigate the clinical value of the heart rate variability(HRV) in the assessment of the prognosis of patients with chronic pulmonary heart disease.Methods:The HRV in 80 patients with chronic pulmonary heart disease(pulmonary heart disease group) and 80 healthy physical examinees(control group) were analyzed.Results:Compared with the control group,the standard deviation of normal to normal R-R intervals,standard deviation of sequential five-minute R-R interval means and percentage of NN50 in the total number of N-N intervals significantly decreased in pulmonary heart disease group,and the differences of whose between two groups were statistically significant(P<0.01).The differences of the standard deviation of normal to normal R-R intervals,standard deviation of sequential five-minute R-R interval means and percentage of NN50 in the total number of N-N intervals in patients with different impairment of pulmonary function in pulmonary heart disease group were statistically significant(P<0.01).Conclusions:The heart rate variability has important clinical value in evaluating the severity and prognosis in patients with chronic pulmonary heart disease.