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Updated: May 6, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
A rare case of nonobstructive membrane of the left atrial appendage
Maram Mallisho1, Inyong Hwang, Shadwan Alsafwah
1Department of Medicine, Health Science Center, The University of Tennessee, Memphis, Tennessee.
Abstract:
The left atrial appendage (LAA) is a blind-ending, complex structure distinct from the body of the left atrium and is sometimes regarded as a minor extension of the atrium. However, it should routinely be evaluated as part of a transesophageal echocardiographic examination. In this study we describe the presence of a nonobstructive membrane traversing the cavity of the LAA, found incidentally on transesophageal echocardiography.
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