Differential Effect of Radiofrequency and Cryoballoon Ablation on Left Atrial Appendage Emptying Flow Velocity
Differential Effect of Radiofrequency and Cryoballoon Ablation on Left Atrial Appendage Emptying Flow Velocity
Consecutive patients with paroxysmal AFib scheduled to undergo pulmonary vein isolation either with radiofrequency (RF) or cryoballoon will be included. Left atrial appendage emptying flow velocity (LAA-EFV) will be measured with transesophageal echocardiography (TEE) immediately before and following left atrial ablation (1 month post). The change in LAA-EFV will be compared between the two groups (RF versus Cryo).
Inclusion Criteria:
Paroxysmal atrial fibrillation, no absolute contraindication for anticoagulation
Exclusion Criteria:
Previous cardiac surgery Previous left atrial ablation History of cerebrovascular event Presence of LAA thrombus Inability to provide informed consent
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