Inclusion Criteria:  Patients at risk for stroke or thromboembolism that demonstrated any degree of the significant leak on follow up TEE imaging at least 4-6 weeks following either epicardial, endocardial, or surgical LAAC Patients undergoing any form of eccentric or centric/central leak closure with available modalities (detachable embolization coils, vascular plus/septal/ASD occluders, or RF Ablation). Criteria for this was made based on the judgement of the operator, with no specific cutoffs for leak size, follow-up time from LAAC to leak closure, etc) Age greater than 18 years  Exclusion Criteria:  Patients not undergoing leak closure after incomplete LAAC Patients unable to complete 45 day follow-up imaging for reevaluation of LAA leak Patients unable to consent