The Accuracy of Left Atrial Appendage Occluder Size Selection Between Preoperative CT and Intraoperative DSA Evaluation During a Combined Atrial Fibrillation Ablation and Left Atrial Appendage Occlusion Procedure
This study is a prospective, multi-center, randomized controlled trial. The subjects are patients scheduled to undergo a combined procedure of atrial fibrillation (AF) ablation and left atrial appendage (LAA) occlusion. After signing the informed consent form, the subjects will be randomly assigned to either the cardiac Computed Tomography (CT) group or the Digital Subtraction Angiography (DSA) group. The operator will select the appropriate LAA occluder size for implantation based on different measurement methods. All subjects will undergo clinical follow-up before discharge and at 3 months postoperatively, as well as telephone follow-up 1-5 years after the surgery.
• Age ≥ 18 years;
• Patients with non-valvular atrial fibrillation scheduled to undergo atrial fibrillation ablation and percutaneous left atrial appendage occlusion;
• Able to understand the purpose of the trial, willing to participate in the study, and the subject or their legal representative has signed the informed consent form, and is willing to complete the follow-up according to the protocol requirements.