Percutaneous Closure of Paravalvular Leaks

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Paravalvular leak occurs in about 2–3% of patients after surgical valve replacement. The leak may cause heart failure, arrhythmias, or hemolysis. Patients who have had multiple operations or who have significant comorbidity constituting a contraindication to surgery might be considered candidates for transcatheter closure. In the past, occluding paravalvular leaks has been attempted using coils or double umbrella devices; defect specific devices are under development. Interventional experiences with various Amplatzer occluders are described.

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