To ensure a successful percutaneous left atrial appendage (LAA) closure, it is important to select the correct size of the closure device used for each patient. To define and measure the size of the LAA, 2D transesophageal echocardiography (TEE) has been typically used. An increasing number of hospitals recently switched to measure the size of the LAA using a cardiac computed tomography (CT) scan. Although this CT scan helps to better define and measure the LAA, it is still difficult to determine the exact anticipated 'landing zone' or 'position' of the closure device. A novel strategy of preprocedural planning includes the use of preoperative computer simulations based on CT imaging (Feops HEARTguideTM), where the device is deployed with a computer simulation into the patient-specific LAA anatomy to provide the operator both optimal and suboptimal scenario's showing different sizes and positions of the closure device. The aim of this study is to assess whether use of FEops HEARTguide computer simulations based on cardiac CT-imaging can contribute to a better preprocedural planning and improved procedural outcomes of percutaneous LAA closure procedures with an Amplatzer Amulet device. The PREDICT-LAA trial will investigate the possible positive effect of a computer simulation using a CT scan of the LAA performed prior to the procedure. The hypothesis is that by using this new computer simulation, better planning of the intervention can be obtained.
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Incomplete LAA closure and definite device-related thrombosis (DRT)
Timeframe: Post-procedural cardiac CT scan at 3 months after LAA closure