We present a case of a patient with advanced interatrial block who was admitted for cavotricuspid isthmus ablation as treatment of typical atrial flutter. A baseline advanced interatrial block pattern turned into partial interatrial block pattern and prolonged PR interval after the procedure. We discuss the mechanism underlying that change.

中文翻译：

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腔三尖瓣峡部消融后矛盾的心房传导恢复：病例报告

我们介绍了一名患有晚期房间传导阻滞的患者的病例，该患者因典型心房扑动而入院接受腔三尖瓣峡部消融术。手术后，基线的高级房间传导阻滞模式转变为部分房间传导阻滞模式，且 PR 间期延长。我们讨论这种变化背后的机制。