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目的:对比研究急性心肌缺血患者与健康人室性期前收缩发生部位的差异。方法:选择12导联同步心电图检测的177例室性期前收缩患者,其中急性心肌缺血患者87例、健康体检者90例,计算不同起源部位室性期前收缩发生率,并对比分析。结果:急性心肌缺血患者左心室前壁(20.7%)及心尖部期前收缩发生率(13.8%)、V左心室期前收缩总发生率(51.7%)显著高于健康体检者(分别为3.3%,2.2%,23.3%);健康体检者右心室流出道期前收缩发生率(61.1%)、右心室期前收缩总发生率(76.7%)显著高于急性心肌缺血患者(分别为31.0%,48.3%)。结论:急性心肌缺血患者以左心室期前收缩常见。
Objective: To compare the differences of ventricular premature contractions between acute myocardial ischemia patients and healthy individuals. Methods: A total of 177 patients with premature ventricular contractions, including 87 patients with acute myocardial ischemia and 90 healthy subjects, were enrolled in this study. The incidences of ventricular premature contractions at different sites of origin were calculated and compared. Results: The incidence of left ventricular anterior wall (20.7%) and apical anterior chamber contraction (13.8%) and V (left ventricular premature ventricular contraction) in acute myocardial ischemia patients were significantly higher than those in healthy subjects (respectively 3.3%, 2.2%, 23.3%). The incidence of right ventricular outflow tract contraction (61.1%) and right ventricular premature ventricular contractions (76.7%) were significantly higher in healthy subjects than those in acute myocardial ischemia 31.0%, 48.3%). Conclusion: Acute myocardial ischemia in patients with left ventricular systolic prevalent.