下壁心肌梗死合并完全性房室传导阻滞恢复期的希氏束电图。
His-bundle electrogram in the convalescent stage of inferior myocardial infarction complicated with complete A-V block.
作者信息
Aizawa Y, Hayashi S, Hosokawa O, Watanabe K, Ozawa T, Shibata A, Takeuchi Y
出版信息
J Electrocardiol. 1982 Apr;15(2):127-30. doi: 10.1016/s0022-0736(82)80005-8.
Twelve patients with inferior wall myocardial infarction complicated with complete atrioventricular block during the acute stage were studied. The His-bundle electrogram was studied in the convalescent stage at an average of 6 months after the acute attack. The age of the patients was 62 +/- 16 years. The width of the QRS complex was within the normal range and the PR interval was less than 200 msec. AH time was 74 +/- 18 msec (mean +/- SD). No split H activity was observed. HV time however, was significantly prolonged in the 12 patients; 54 +/- 12 msec vs. 42 +/- 9 msec in the control group (p less than 0.02). Five patients had HV time equal to or more than 60 msec. Intra-His block was suggested to exist in a high frequency in the patients who had previous complete AV block during the acute stage of myocardial infarction of the inferior wall.
对12例下壁心肌梗死急性期并发完全性房室传导阻滞的患者进行了研究。在急性发作后平均6个月的恢复期对希氏束电图进行了研究。患者年龄为62±16岁。QRS波群宽度在正常范围内，PR间期小于200毫秒。AH时间为74±18毫秒（均值±标准差）。未观察到H波分裂。然而，这12例患者的HV时间显著延长；与对照组的42±9毫秒相比为54±12毫秒（p<0.02）。5例患者的HV时间等于或超过60毫秒。提示下壁心肌梗死急性期曾发生完全性房室传导阻滞的患者中，希氏束内阻滞的发生率较高。
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