Key result
Transcatheter closure with a 24-mm occluder successfully resolves a giant left atrial appendage aneurysm.
Why the study?
Giant left atrial appendage aneurysms are rare causes of recurrent cardioembolism and are routinely managed by surgery, but alternative management strategies are needed when surgery is contraindicated.
Case Report (n=1)
Provides a potential nonsurgical option for surgery-ineligible patients with giant left atrial appendage aneurysm; leaves open the need for prospective validation.
Giant left atrial appendage aneurysms (LAAAs) are rare causes of recurrent cardioembolism and managed routinely by surgery. A first catheter closure of a giant LAAA is reported, when a recent cerebral infarct precluded immediate surgery. Planning included ostial measurement on multimodal imaging, echo navigation for septal puncture, rotational angiogram for profiling, overlay imaging for device placement, and cerebral embolic protection from thrombus debris.
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Sivakumar et al. (2020) conducted a case report in Giant left atrial appendage aneurysm with recurrent cardioembolism (n=1). Transcatheter closure with a 24-mm Amplatzer Postinfarct muscular VSD occluder was evaluated on Procedural success and closure of the aneurysm. Transcatheter closure of a giant left atrial appendage aneurysm using a 24-mm muscular ventricular septal occluder was successfully performed, leading to complete aneurysm thrombosis and shrinkage.
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