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目的 :探讨急性下壁心肌梗死伴房室传导阻滞 (AVB)病变过程与冠状动脉病变的关系。方法 :观察 16例急性下壁心肌梗死患者并发 AVB的形式和演变过程 ,并结合冠状动脉造影进行分析。结果 :发生 度 AVB1例 , 度 型 AVB3例 , 度 AVB12例。房室传导障碍出现的过程多数为 度、 度 型、 度 型、 度 AVB,发生时间6 4± 45 h;而恢复过程多数为 度、 度 型、 度 型、 度 AVB,恢复时间 2 2 1± 12 7h。AVB发生期 8例中有 7例优势型冠状动脉完全阻塞 ,而 AVB恢复期 8例中仅 2例优势型冠状动脉完全阻塞 (P<0 .0 1)。结论 :急性下壁心肌梗死伴房室传导阻滞的产生与恢复是优势型冠状动脉阻塞与再通的结果
Objective: To investigate the relationship between acute inferior myocardial infarction complicated with atrioventricular block (AVB) and coronary artery lesion. Methods: The forms and evolution of AVB in 16 patients with acute inferior myocardial infarction were observed and analyzed by coronary angiography. Results: The incidence of AVB1 cases, 3 cases of AVB, AVB12 cases. Atrioventricular conduction disorder occurred mostly in degree, degree, degree, degree of AVB, the occurrence time of 64 ± 45 h; and the majority of the recovery process for the degree, degree, degree, degree AVB, recovery time 2 2 1 ± 12 7h. Seven of the 8 patients with AVB had complete occlusion of the dominant coronary artery, whereas only 2 of the 8 patients with AVB recovered completely obstruction of the dominant coronary artery (P <0.01). Conclusions: The generation and recovery of acute inferior myocardial infarction with atrioventricular block is the result of occlusion and recanalization of dominant coronary artery