不同冠状动脉病变患者窦性心律震荡的变化

目的 研究冠状动脉病变程度与窦性心律震荡（HRT）各指标间的联系.方法 选取139例同期行冠状动脉造影（CAG）和24h动态心电图监测（Holter）的患者,按CAG结果分为阳性组和阴性组,以Holter定量测定HRT指标,统计分析CAG结果和HRT指标的关系.结果 CAG阳性组震荡初始（TO）值显著高于阴性组,且TO值与病变血管数目呈正相关（P〈0.05）;CAG阳性组的震荡斜率（TS）值显著低于阴性组（P〈0.05）;且TS值与病变血管数目呈负相关（P〈0.05）.结论 冠心病患者HRT显著减弱（TO升高,TS下降）,提示HRT可能是预测冠状动脉病变严重程度的敏感指标之一.

Study on the correlation between heart rate turbulence and coronary lesion

Objective To study the correlation between heart rate turbulence （HRT） and coronary lesion. Methods We selected 139 patients who had undergone 24 h ambulatory electrcardiography and selective coronary angiography （CAG）. Then all of the data of HRT which accepted from 24 - hour ambulatory electrocardiography （Holter） were analyzed and compared between groups. Results Compared with the CAG negative group, the value of TO was significantly higher in patients with CAG postive group, which had positive correlation with coronary lesion （ P 〈 0.05 ）, while the value of TS was significantly lower in patients with CAG （ ＋ ）, which had negative correlation （ P 〈 0. 05 ）. Conclusion The HRT in patients with coronary heart disease is decreased. The value of TO is higher and TS is lower in patients with coronary heart disease, which means HRT maybe one sensitive index to predict the severity of coronary lesion.