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结间束2:1传导阻滞较罕见,它在心电图上表现为单纯性P波电交替。作者曾报道1例胆石症患者发生单纯性P波电交替,其二种电压交替的P波均属正常范围.近来又在1例冠心病患者描记到一过性肺型P波与正常形态的P波交替出现
Intercluster bundle 2: 1 conduction block is rare, it showed on the ECG simple P wave alternating. The authors have reported a case of cholelithiasis in patients with simple P-wave alternation, the two voltage alternating P wave are within the normal range.Recently in a case of coronary heart disease patients with transient pulmonary P wave and normal morphology P waves appear alternately