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目的观察心率震荡以及心率变异对高血压伴室性早搏的相关性分析。方法患者收集我院2008年6月至2010年1月的原发性高血压患者共217例,患者根据有无伴发室性早搏分为偶发室早组,频发室早组,并另外选健康人群80例作为对照组。记录各组HRV、HRT的各项指标的差异。结果各组结果之间对比中发现,偶发组、频发组的TO、TS与对照组相比差异有统计学意义,P≤0.05。频发组的TO、TS与偶发组对比差异有统计学意义,P≤0.05。偶发组、频发组的SDNN、T1低于对照组,结果有统计学意义,P≤0.05。偶发组、频发组的TO、TS、SDNN、T1的阳性率明显高于对照组,P≤0.05。而频发组TO、TS、SDNN、T1的阳性率高于偶发组。结论频发组患者自主神经功能系统受损最严重,HRV与HRT可以作为评估原发性高血压伴室早的评价指标。
Objective To observe the correlation between heart rate turbulence and heart rate variability in patients with hypertension and premature ventricular contractions. Methods A total of 217 patients with essential hypertension were collected from June 2008 to January 2010 in our hospital. Patients were divided into two groups according to their presence or absence of premature ventricular contractions, 80 healthy people as a control group. The differences of each index of HRV and HRT in each group were recorded. Results The comparisons between the results of each group showed that there were significant differences in TO and TS between occasional group and frequent group compared with the control group, P≤0.05. Frequent group of TO, TS and occasional group differences were statistically significant, P ≤ 0.05. Sporadic group, frequent cases of SDNN, T1 lower than the control group, the results were statistically significant, P ≤ 0.05. The positive rates of TO, TS, SDNN and T1 in sporadic and frequent cases were significantly higher than those in control group (P≤0.05). The frequency of TO, TS, SDNN, T1 positive rate was higher than the sporadic group. Conclusion The autonomic nervous system dysfunction is the most frequent in the frequent patients. HRV and HRT can be used as the evaluation indicators for the early diagnosis of essential hypertension.