分支性逸搏心律心电图分析

Electrocardiogram analysis on fascicular escape rhythm

分支性逸搏心律是由心脏激动起源异常引起的一种较为少见的被动性心律失常,它是一种心脏自我保护的心律,也是双重心律中较特殊的一种表现形式。分支性逸搏心律的形成需要具备相应的条件,根据其发生时激动点起源位置的不同,可分为三类,并由此产生不同的心电图形态学改变。分支性逸搏心律的鉴别诊断非常重要,原因是鉴别结果将决定后续不同的处理措施及患者预后。本文通过几个典型病例详细阐述不同的分支性逸搏心律的心电图表现和鉴别诊断要点。

Fascicular escape rhythm is a rare passive arrhythmia caused by abnormally originated cardiac stimuli. It is regarded as a kind of heart self-protection rhythm,and is also a special manifestation of dual rhythm. The formation of fascicular escape rhythm requires corresponding conditions. According to the different origins of cardiac stimuli at the attack,fascicular escape rhythm can be divided into 3 types,and thereby shows different electrocardiographic morphology changes.The differential diagnosis of fascicular escape rhythm is very important,since the result lead to different treatments and prognoses of patients subsequently. By several typical cases,this paper illustrates in detail the electrocardiogram manifestations and differential diagnosis highlights of different fascicular escape rhythms.