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在1:1房室传导的病例运动诱发完全性房室传导阻滞鲜有报道.如果是由运动诱发的房室传导阻滞,其阻滞部位通常在房室结远端的希-浦系统.症状性慢性双分支阻滞者经快速心房起搏也证实阻滞部位在房室结远端.由运动诱发或是症状性双分支阻滞者其发展为高度房室传导阻滞的危险性明显增高.对这类病人须作电生理检查(EPT)确定其远端传导阻滞属病理性还是功能性.近来,Cohen和Scheinman提出运动负荷试断(ETT)对预测慢性双分支阻滞是否发展为高度房室传导阻滞具有重要意义.本文报道1例慢性双分支阻滞运动试验导致完全住房室传导阻滞长达30s,亦支持上述观点.患者男性,66岁.患慢性阴塞性肺部疾患逐渐呼吸困难而入院检查.体检:血压130/66mmHg(17.3/8.8kPa).脉率80
Exercise-induced complete atrioventricular block has rarely been reported in a 1: 1 atrioventricular conduction event.If motion-induced atrioventricular block is found, its block is usually located in the Hip-Pu system distal to the AV node . Symptomatic chronic bifurcation block by rapid atrial pacing also confirmed that the block in the distal atrioventricular node induced by exercise or symptomatic bifurcation block their risk of developing a high degree of atrioventricular block (EPT) to determine whether its distal conduction block is pathologically or functionally.Recently, Cohen and Scheinman proposed that Exercise Extent Intervention (ETT) predicts whether chronic bipolar blockade The development of a high degree of atrioventricular block is of great significance.In this paper, we report a case of chronic bifurcated block exercise test led to complete housing block for up to 30s, also supports the above view.Patients male, age 66. suffering from chronic vaginal Pulmonary disease gradually breathing difficulties and admission examination. Physical examination: blood pressure 130 / 66mmHg (17.3 / 8.8kPa). Pulse rate 80