The investigators thought to evaluate the safety and feasibility of peri-device leakage closure after left atrial appendage occlusion (LAAO, either surgical or interventional) with different devices.



Eligible Ages
Between 18 Years and 100 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • Patients after interventional or surgical left atrial appendage occlusion with severe leakage, who underwent interventional peri-device leakage closure

Exclusion Criteria

  • n/a

Study Design

Study Type
Observational Model
Time Perspective

Arm Groups

ArmDescriptionAssigned Intervention
significant peri-device leakage after LAA occlusion Peri-device leakage closure after left atrial appendage occlusion
  • Device: Peri-device leakage closure after left atrial appendage occlusion
    Peri-device leakage closure after left atrial appendage occlusion

Recruiting Locations

• Banner University Medical Center Phoenix
Phoenix, Arizona 85006

More Details

Cardiovascular Center Frankfurt

Study Contact

Sabine de Bruijn
+49 69 9794 7653

Detailed Description

The global burden of atrial fibrillation (AF) is high and thromboembolic stroke may be one of the fatal complications. Oral anticoagulation has been the mainstay therapy for decades to mitigate stroke risk. However, in poor candidates for long-term anticoagulation non-pharmacological stroke prevention with percutaneous left atrial appendage occlusion (LAAO) is a considerable treatment option. LAA shape and size varies widely and incomplete LAA closure or new leaks, due to LAA remodeling after the procedure, are observed in up to 30% of patients. Those leaks may cause turbulent flow and increase the risk for thrombus formation and subsequent thromboembolic events. However, the clinical significance after percutaneous LAAO has yet to be determined. If significant leaks are present, patients usually remain on oral anticoagulation. In very few cases, an interventional approach is used to close peri-device leaks. This is the first systematic study, trying to include a respectable number of patients who underwent peri-device leakage closure after LAAO. In this multi-center, collaborative study the investigators aim to identify different peri-device leak closure strategies with associated clinical outcomes and evaluate safety and feasibility of the procedure.


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