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目的探讨心肌梗死后性生活能否引起新的心肌缺血、损伤。方法首发心肌梗死男性患者32例作为研究对象,佩戴动态心电图进行性事试验及体力试验。检测两种试验心率变异性(HRV),定量分析正常窦性R-R间期的标准差(SDNN)、全程记录中每5minNN间期平均值的标准差(SDANNI)、相邻窦性R-R间期差值的均方根值(RMSSD)、低频(LF)及高频(HF)指标。结果检测HRV中SDNN、SDANNI、RMSSD、LF、HF,性事试验分别平均为95.3ms、76.5ms、18.3ms、738.5ms2、520.7ms2;体力试验分别平均为114.5ms、87.4ms、25.4ms、583.7ms2、548.5ms2,两组差异有统计学意义(P<0.01)。结论心肌梗死后进行性生活可诱发新的心肌缺血、损伤。HRV可定量分析迷走神经张力和交感神经兴奋性,有助于对心肌梗死后性生活安全性进行指导。
Objective To investigate whether sexual life after myocardial infarction can cause new myocardial ischemia and injury. Methods Thirty-two male patients with myocardial infarction were enrolled in this study. We performed ambulatory test and physical test with dynamic electrocardiogram. The heart rate variability (HRV) was measured in both trials, and the standard deviation (SDNN) of normal sinus RR interval was quantified. The standard deviation (SDANNI) RMSSD, LF and HF. Results The average scores of SDNN, SDANNI, RMSSD, LF and HF in HRV were 95.3 ms, 76.5 ms, 18.3 ms, 738.5 ms2 and 520.7 ms2, respectively. The physical tests were 114.5 ms, 87.4 ms, 25.4 ms and 583.7 ms2,548.5ms2, the difference between the two groups was statistically significant (P <0.01). Conclusions Sexual life after myocardial infarction can induce new myocardial ischemia and injury. HRV quantitative analysis of vagal tone and sympathetic nerve excitability, help to guide the safety of sexual life after myocardial infarction.