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目的:分析2型糖尿病对心率变异性的影响。方法:对31例2型糖尿病患者和健康对照组进行24 h动态心电图监测,并测定心率变异性时域指标SDNN、SDNNIndex、SDANN、rMSSD、PNN50和频域指标TF、LF、HF、LF/HF和24h平均心率。结果:2型糖尿病患者心率变异性指标较对照组显著降低(P<0.05或P<0.01)。结论:2型糖尿病患者心率变异性减低,提示心脏自主神经功能受损。
Objective: To analyze the effect of type 2 diabetes on heart rate variability. Methods: Twenty-one patients with type 2 diabetes mellitus and healthy controls were monitored for 24 hours electrocardiogram (ECG) and their heart rate variability time domain indices SDNN, SDNNIndex, SDANN, rMSSD, PNN50 and TF, LF, HF, And 24h average heart rate. Results: The heart rate variability index of type 2 diabetes patients was significantly lower than that of the control group (P <0.05 or P <0.01). Conclusion: The heart rate variability in patients with type 2 diabetes is decreased, which impairs the autonomic function of the heart.