Assessment of left atrial appendage function by transthoracic echocardiography in non-valvular atrial fibrillation
نویسندگان
چکیده
منابع مشابه
Prediction of left atrial appendage thrombi in non-valvular atrial fibrillation.
AIMS There is little knowledge about the predictors of left atrial appendage (LAA) thrombi in non-valvular atrial fibrillation (NVAF). We investigated the ability of D-dimer to predict LAA thrombi. METHODS AND RESULTS In this study, 925 patients with NVAF were enrolled. At the time of transoesophageal echocardiography (TEE), D-dimer levels were measured simultaneously. Significant independent...
متن کاملAssessment of left atrial appendage function with transthoracic tissue Doppler echocardiography.
AIMS A transthoracic echocardiographic (TTE) parameter that would stratify atrial fibrillation (AF) risk would be useful. Tissue Doppler imaging can quantify left atrial appendage contraction velocity (LAA A(M)). METHODS AND RESULTS We studied 141 patients referred for transoesophageal echocardiogram (TEE); 48 were in AF. We obtained TEE and TTE LAA A(M) velocities from the LAA apex on the pa...
متن کاملLeft Atrial Appendage Morphology in Patients with Non-Valvular Atrial Fibrillation
Accessible online at: http://structuralheartdisease.org/ Abstract Aims: Percutaneous left atrial appendage (LAA) occlusion has now become a suitable alternative to oral anticoagulation for stroke prevention in selected patients with atrial fibrillation (AF). However, LAA closure can be technically challenging and results suboptimal, in part due to variable left atrial anatomy.We aimed to charac...
متن کاملA Semi-Automated Algorithm for Segmentation of the Left Atrial Appendage Landing Zone: Application in Left Atrial Appendage Occlusion Procedures
Background: Mechanical occlusion of the Left atrial appendage (LAA) using a purpose-built device has emerged as an effective prophylactic treatment in patients with atrial fibrillation at risk of stroke and a contraindication for anticoagulation. A crucial step in procedural planning is the choice of the device size. This is currently based on the manual analysis of the “Device Landing Zone” fr...
متن کاملAssessment of left atrial and left atrial appendage flow and stasis in atrial fibrillation
Background Atrial fibrillation (AF) is associated with increased risk of stroke due to development of left atrial (LA) thrombus [1]. Thromboembolic risk is assessed by clinical risk scores (CHA2DS2-VASc). However, these scores have limited predictive value. Echocardiography studies have shown that physiologic factors such as decreased atrial blood flow and increased stasis (LA velocities <0.2m/...
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ژورنال
عنوان ژورنال: European Heart Journal
سال: 2013
ISSN: 0195-668X,1522-9645
DOI: 10.1093/eurheartj/eht308.p1125