摘要
目的探讨单向性房室传导阻滞和不完全性双向性房室传导阻滞的心电图改变及临床意义。方法对8例单向性房室传导阻滞和不完全性双向性房室传导阻滞患者的心电图进行回顾性分析。结果4例表现为单向性房室传导阻滞,其顺传完全受阻,无心室夺获发生,房室交接区性或室性逸搏心律伴有间歇性室房传导(心房夺获);另4例表现为不完全性双向性房室传导阻滞,其顺传呈不完全性阻滞,适时的窦性激动可夺获心室,同时伴有心房夺获。结论心电图确诊单向性房室传导阻滞和不完全性双向性房室传导阻滞,对患者起搏方式的选择及临床预后估计有一定实用价值。
Objective To explore electrocardiogram（ECG）changes and clinical significance of unidirectional and incomplete bidirectional atrioventricular Conduction block（A-VB）. Methods ECGs were analyzed retrospectively in 8 patients with unidirectional or incomplete bidirectional A-VB. Results 4 cases manifested as unidirectional A-VB and atrioventricular junctional or ventricular escape rhythm with intermittent ventriculoatrial conduction. Antegrade conduction was completely blocked without sinus capture of ventricles. Another 4 cases manifested as incomplete bidirectional A-VB with timely sinus capture of ventricules and atrial capture. Conclusion Unidirectional and incomplete bidirectional A-VB on ECG is of practical value for determining pacing mode and predicting prognosis.
出处
《心电学杂志》
2007年第3期135-137,共3页
Journal of Electrocardiology(China)
关键词
房室传导阻滞
单向
双向
心房夺获
Atrioventricular conduction block, Unidirectional, Bidirectional, Atrial capture
