【摘要】 目的:探讨冠心病患者心肌缺血致室性心动过速的发生机制。方法:对冠心病患者心肌缺血(MI)时伴室性心动过速的18例病人(Ⅰ组)与无室速的37例病人(Ⅱ组)进行24h动态心电图监测。结果:Ⅰ与Ⅱ组间每天MI总阵次和总时间有非常显著性差异(P<0.01),Ⅰ组全程持续性MI高于Ⅱ组(P<0.05)。Ⅰ组中伴室速发作的MI持续时间,最大ST压低幅度高于无室速的MI(P<0.01),Ⅰ组3级以上室早总发生率明显高于Ⅱ组(P<0.01)。结论:冠心病患者MI是导致室速的主要病理生理基础,积极治疗MI是预防室速发生的主要措施。更多还原

【Abstract】 Objective: To explore the mechanism of ventricular tachycardia due to myocardial ischemia(MI) on patients with coronary heart disease. Methods: 24 hours dynamic electrocardiogram were monitored in 18 patients with coronary heart disease who have the symptom of MI with ventricular tachycardia (G Ⅰ ) and 37 patients with coronary heatr disease without ventricular tachycardia (G Ⅱ ) . Results: There is a marked difference between GⅠ and GⅡ in the frequency and duration of MI ( P < 0.01 ) . The whole course of MI of G Ⅰ is longer than that of GⅡ ( P < 0.05) . In G Ⅰ , MI for the patients wiht coronary heart disease and ventricular tachycardia lasting time and the lowering range of ST is higher than M Ⅰ OF GⅡ . The rate of occurrence of ventricular premature beat of G Ⅰ is higher than that of GⅡ ( P < 0.01) . Conclusion: MI for patients with coronary heart disease is the mam pathological and physiological cause of ventricular tachycardia, so treatment for MI can decrease the occuring rate of ventricular tachycardia.更多还原