RF Applications for Residual LAA Leaks

Therapies locally targeting the LAA via occlusion, exclusion, or excision have emerged as an alternative and effective approach for stroke prophylaxis in AF patients, especially those with OAC contra-indications. Despite mounting evidence of their safety and efficacy in comparison with standard oral therapy, device-related thrombus and incomplete LAA closure resulting in residual, significant leak may occur, potentially hindering an effective stroke prevention. Radiofrequency energy has been adopted in several settings (e.g., vascular, orthopedic, aesthetic surgery) to achieve thermal-induced tissue retraction.