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A comparison of two-dimensional and real time 3D transesophageal echocardiography and angiography for assessing the left atrial appendage anatomy for sizing a left atrial appendage occlusion system - impact of volume loading

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1. GFO Kliniken Bonn - Betriebsstätte St. Marien, Innere Medizin, Bonn Venusberg, Nordrhein-Westfalen, GERMANY; 2. GFO Kliniken Bonn - Betriebsstätte St. Marien

Abstract

Aims: Correct sizing of a left atrial appendage (LAA) closure system is important to avoid redeployment of the device and peri-device leaks. The aims of this study were to assess the significance of two-dimensional transesophageal echocardiography (2DTEE), real-time 3D transesophageal echocardiography (RT3DTEE) and angiography for measuring the size of the LAA landing zone and to determine the impact on sizing a LAA closure device. Furthermore, we investigated the relevance of volume loading on LAA size.

Methods and results: In a prospective st…

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