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目的分析中年高血压病合并无症状心肌缺血患者室性早搏起源部位的特点。方法采用分层(分类)抽样法抽取同步12导联24 h动态心电图检测的室性早搏病例,中年高血压病合并无症状心肌缺血组(Ⅰ)76例,非合并无症状心肌缺血组(Ⅱ)80例,正常中年对照组(Ⅲ)80例,对比3组各起源部位室性早搏发生率。结果Ⅰ组和Ⅱ组左、右心室前壁及心尖部早搏发生率均高于Ⅲ组(P﹤0.05),其中左心室前壁及心尖部早搏发生率Ⅰ组高于Ⅱ组(P﹤0.05)。结论中年高血压病合并无症状心肌缺血患者左心室前壁和心尖部室性早搏发生率高。同步12导联动态心电图检查,包括室性早搏定位分析对中年高血压病患者具有重要临床意义。
Objective To analyze the characteristics of the origins of ventricular premature beats in patients with asymptomatic myocardial ischemia in middle-aged hypertensive patients. Methods The stratified (categorical) sampling method was used to extract ventricular premature ventricular contractions detected by 24-hour ambulatory 12-lead electrocardiogram (ECG), 76 middle-aged patients with asymptomatic myocardial ischemia (Ⅰ), non-asymptomatic myocardial ischemia 80 cases in group (Ⅱ) and 80 cases in normal middle-aged control group (Ⅲ). The incidence of ventricular premature beats in all three groups were compared. Results The incidence of premature left ventricular and apical premature beats in group Ⅰ and group Ⅱ were significantly higher than those in group Ⅲ (P <0.05), and the incidence of premature left ventricular and apical premature beats in group Ⅰ was higher than that in group Ⅱ (P <0.05 ). Conclusion The incidence of premature ventricular anterior and apical ventricular premature beats in middle-aged hypertensive patients with asymptomatic myocardial ischemia is high. Synchronization of 12-lead Holter, including premature ventricular localization analysis of essential hypertension in patients with long-term clinical significance.