结论确定QRS波形态多变的逸搏及逸搏心律的形成原因，对于评价各种传导障碍的性质及临床诊治具有重要的参考价值。
Conclusions Understanding the reasons and mechanisms of QRS wave diversity in escape beat and escape rhythm is of great reference value for the evaluation, diagnosis of all kinds of conduction block.
结论确定QRS波形态多变的逸搏及逸搏心律的形成原因，对于评价各种传导障碍的性质及临床诊治具有重要的参考价值。
Conclusions Understanding the reasons and mechanisms of QRS wave diversity in escape beat and escape rhythm is of great reference value for the evaluation, diagnosis of all kinds of conduction block.
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