Contraction of the esophagus was observed during cryoablation for paroxysmal atrial fibrillation (PAF). The purpose of this study is to investigate the mechanism of esophageal contraction and the correlation between the contraction and esophageal thermal lesions.

中文翻译：

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冷冻消融期间的食管收缩：一种可能的保护机制。

在阵发性心房颤动 (PAF) 冷冻消融期间观察到食道收缩。本研究的目的是探讨食管收缩的机制以及收缩与食管热损伤的相关性。