Long-Term Outcomes of Left Atrial Appendage Contrast Flow in CT Scans After Endocardial LAA Closure: The CF-CT Registry
Kansas City Heart Rhythm Research Foundation
Summary
This study is intended to assess the incidence and correlation to the development of peri-device leaks (PDLs), device related thrombosis (DRTs) and cerebral vascular accident (CVA)/transient ischemic attacks (TIAs) in association with left atrial appendage contrast flow (LAA-CF). It will be a multi-center, retrospective study. Approximately 100 subject charts will be reviewed.
Description
Although the clinical significance of long-term left atrial appendage contrast flow (LAA-CF) in computerized tomography (CT) scan is unknown, study by Lim et al reported that 45 days are not enough for complete left atrial appendage (LAA) seal-off after left atrial appendage occlusion (LAAO) in humans and anatomic closure may not necessarily ensure treatment success. Long-term monitoring is warranted in high-risk patients with LAAO after switching from anticoagulation to antiplatelet therapy. They reported possible explanations for residual LAA-CF after LAAO to be related to peri-device gaps,…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Subjects must be at least 18 years of age. * Subjects underwent LAA closure with Watchman/Watchman FLX or Amplatzer Amulet at our institution from January 2019 till June 2022 Exclusion Criteria: * No definite exclusion criteria are defined for the study as all patients with Watchman-FLX or Amplatzer Amulet will be included in the study.
Interventions
- OtherLeft Atrial Appendage Occlusion
Acute ischemic stroke is a major cause of morbidity and mortality in non-valvular Atrial Fibrillation (AF). Oral Anticoagulation (OAC) with Warfarin and Direct oral anticoagulants (DOACs) has been the mainstay to prevent systemic thromboembolism (STE) in this patient population. It is estimated that around 50% of patients who have AF with indication for OAC end up being not on OAC due to bleeding complications leaving them at high risk for developing STE. Left atrial appendage occlusion (LAAO) offers an option in such population.
Location
- Kansas City Heart Rhythm InstituteOverland Park, Kansas