Retrieval Strategies for Embolized Left Atrial Appendage Closure Devices
Abstract
Background: Device embolization (DE) is a rare but potentially life-threatening complication of left atrial appendage occlusion (LAAO). As landmark trials broaden the eligible population for LAAO, operator preparedness for DE management becomes increasingly critical.
Case summary: We present 4 cases of LAAO DE managed with distinct retrieval strategies: 1) open surgical retrieval with concurrent AtriClip ligation for an endothelialized left atrial device; 2) sequential transseptal then retrograde arterial snaring for intraprocedural migration to the abdominal aorta; 3) transseptal retrieval using a dedicated ONO system with cerebral embolic protection for partial left atrial dislodgment; and 4) retrograde large-bore arterial retrieval for delayed aortic embolization.
Conclusions: Percutaneous retrieval is feasible in most cases when tailored to embolization location. Surgical backup remains indispensable. Prevention requires rigorous preprocedural imaging, accurate sizing, and routine postimplant surveillance.
Take home message: LAAO embolization has high mortality, accurate device sizing as well as follow up imaging in paramount.
How strong is the evidence?
Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
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