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目的:分析阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者心率减速力(DC)与心率变异性(HRV)的相关性。方法:应用IB深圳博英12导动态心电图对273例OSAHS(观察组)与210例健康成人(对照组)的HRV时域指标和DC进行对比分析。结果:观察组与对照组的HRV时域指标:全部窦性心搏RR间期的标准差(SDNN);RR间期平均值标准差(SDANN);相邻RR间期差值的均方根(RMSSD)和DC相比对照组差异具有统计学意义,OSAHS组的DC、HRV降低,且与HRV的时域指标SDNN、SDANN、RMSSD和DC显著相关(P<0.05)。结论:OSAHS患者的DC值降低,且DC指标与HRV指标有较好的相关性,检测可以判定OSAHS患者自主神经功能的指标。
Objective: To analyze the relationship between heart rate deceleration (DC) and heart rate variability (HRV) in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: The time-domain analysis of HRV in 273 patients with OSAHS (observation group) and 210 healthy adults (control group) was performed with IB Shenzhen 12-lead dynamic electrocardiogram. Results: The HRV time-domain indexes of observation group and control group were as follows: SDNN of all sinus rhythm RR interval, SDANN of mean RR interval, mean square root of RMSD of adjacent RR interval (RMSSD ) And DC compared with the control group was statistically significant, OSAHS group of DC, HRV decreased, and HRV time domain indicators SDNN, SDANN, RMSSD and DC significantly (P <0.05). Conclusion: The DC value of OSAHS patients is decreased, and the correlation between DC and HRV indexes is good. The indexes of autonomic nervous function in patients with OSAHS can be determined by the test.