苏忠敏,蒋燕勤,刘 燕

本文综述了LAAC术后新发PDL的潜在机制、检测方法及其对临床预后的影响。研究表明，左心耳与封堵器的几何形状不匹配、左心耳特殊解剖位置以及左心耳口径过大是PDL发生的主要原因。三维经食管超声心动图（TEE）和左心耳CT是目前评估PDL的主要方法，各具优势。关于PDL对临床预后的影响，现有研究结果存在争议，需要更多大规模、长期随访的前瞻性研究来明确其临床意义。

左心耳封堵术；新发残余分流；检测方法

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