Related Experiment Video
Updated: Feb 4, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Percutaneous isolation of left atrial appendage thrombus
Oh-Hyun Lee1, Jae-Sun Uhm1, Jung-Sun Kim1,2
1Department of Internal Medicine, Severance Cardiovascular Hospital, Yonsei University, College of Medicine, Seoul, Republic of Korea.
Abstract:
Most physicians regard left atrial appendage (LAA) thrombus as a contraindication for LAA occlusion due to risk of distal embolization which is a serious complication. Here we report a case of successfully implanted Amplazter cardiac plug without complication in elderly patients having LAA thrombus with recurrent embolic events despite oral anticoagulants for prevention of thromboembolic events. <Learning objective: LAA thrombus is not completely resolved in all cases and can be a potential source of stroke or embolization even during anti-coagulation. We would like to share a case that suffered from 6 strokes or embolizations despite anti-coagulation, warfarin or non-vitamin K antagonist oral anti-coagulants due to incomplete resolution of LAA thrombus. In this clinical situation, we can suggest LAA occlusion to isolate thrombus from LA and prevent further stroke or embolization.>.
Related Concept Videos
Surface Appendages of Archaea
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
Cardiac Catheterization III: Left Heart Catheterization
DNA Isolation
DNA Isolation
Overview Of Cell Separation And Isolation

