论文部分内容阅读
双束支传导阻滞,临床上并非少见,但2:1传导、不同步、阻滞程度又不等的双束支Ⅱ~0传导阻滞所致交替性左右束支传导阻滞伴 P-R 间期长短交替的 ECG 改变则较少见。笔者曾经治1例,报告如下。患者,男,64岁。有冠心病史十余年。右图是描记 ECG 中的 V_1导联。P 波有规律发生,P-P 间期固定为 0.67秒,P-R 间期长短交替,短 P-R 间
Double bundle branch block, clinically not uncommon, but 2: 1 conduction, out of sync, the degree of block is not the same double bundle branch Ⅱ ~ 0 conduction block due to the alternating left bundle branch block with PR ECG changes are less common in the short and long term. I once treated one case, the report is as follows. Patient, male, 64 years old. Coronary heart disease more than ten years. The right is a trace of the V_1 lead in the ECG. P wave occurs regularly, P-P interval is fixed at 0.67 seconds, P-R interval alternating short, short P-R