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目的 探讨溶栓治疗与非溶栓治疗后急性下壁心肌梗塞 (AIMI)发生房室传导阻滞 (AVB)的时间规律。方法 根据是否接受过溶栓治疗将 4 8例AIMI合并AVB的病人分为溶栓组和未溶栓组 ,分析并对比了两组AVB发生时间及高峰时间。结果 未溶栓组AVB时间高峰在 12小时 ,溶栓组则在 2 5～ 4 8小时内 ,两组间有显著差异 (P <0 0 1)。结论 溶栓治疗的早期可能延缓了房室结区血管的闭塞 ,暂时维持了局部血供 ,使AVB发生时间推迟
Objective To investigate the time course of atrioventricular block (AVB) in acute inferior myocardial infarction (AIMI) after thrombolytic therapy and non-thrombolytic therapy. Methods According to whether thrombolytic therapy was given or not, 48 patients with AIMI and AVB were divided into thrombolysis group and non-thrombolysis group. The time and peak time of AVB in both groups were analyzed and compared. Results The peak AVB time was 12 hours in the group without thrombolytic therapy and 25 to 48 hours in the thrombolysis group. There was a significant difference between the two groups (P <0.01). Conclusion The early thrombolytic therapy may delay the occlusion of atrioventricular node vasculature, and temporarily maintain the local blood supply and delay the occurrence of AVB