This study is a prospective, multicenter international trial aimed at assessing the actual incidence, identifying associated factors, and evaluating the clinical consequences of both persistent and recurrent device-related thrombus (DRT) following percutaneous left atrial appendage occlusion (LAAO).
While LAAO has shown efficacy in reducing the risk of stroke, device-related thrombus (DRT) remains a significant concern. The reported incidence of DRT varies, and it is associated with an elevated risk of ischemic stroke and death. The study highlights that persistent and recurrent DRT pose higher risks of thromboembolic events, and current data come from retrospective studies with non-standardized imaging follow-up protocols. The timing of imaging follow-up is crucial, and the study notes discrepancies in recommendations from expert statements. The EHRA/EAPCI suggests imaging at specific intervals post-procedure, while the SCAI/HRS recommends repeat imaging at shorter intervals to assess DRT resolution. The study underscores the need for dedicated prospective data to accurately determine the incidence, factors, and clinical impact of persistent and recurrent DRT after LAAO.
Patients with diagnosis of probable/definite DRT after LAAO detected by transesophageal echocardiography (TEE) or cardiac computed tomography (CT).
Age≥18 years old.
Unable to provide informed consent
Patients undergoing LAAO with a probable/definite diagnosis of DRT detected by transesophageal echocardiography (TEE) or cardiac computed tomography (CT).
Other
Prospective
Not listed
Thromboembolic events (ischemic stroke, systemic embolism)
Incidence of and thromboembolic events (ischemic stroke, systemic embolism) associated with persistent/recurrent DRT after LAAO
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