ArticleEuropean heart journal. Case reports2024
Left atrial appendage occlusion for recurrent stroke while on oral anticoagulation: a case series.
Article in European heart journal. Case reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Clinical practice guidelines recommend oral anticoagulation (OAC) for stroke prevention in selected patients with atrial fibrillation (AF). However, some patients still experience thrombo-embolic events despite adequate anticoagulation. The optimal management of these cases remains uncertain, leading to practice pattern variability. We present a series of three cases illustrating the use of left atrial appendage occlusion (LAAO) as an adjunctive stroke prevention strategy in AF patients with recurrent thrombo-embolic events despite adequate anticoagulation. Case summary: Case one describes an 89-year-old female on apixaban who presented with a thrombus and underwent successful mechanical thrombectomy. Left atrial appendage occlusion was performed, and no subsequent thrombo-embolic events were reported. Case 2 involves a 72-year-old female on full-dose apixaban who experienced recurrent strokes despite adequate anticoagulation. Thrombectomy was performed twice, and complications arose during LAAO. The patient was discharged on warfarin + clopidogrel and remained event-free at the six-month follow-up. Case 3 features an 88-year-old female on rivaroxaban who experienced recurrent cerebral ischaemic events and gastrointestinal bleeding. Left atrial appendage occlusion using an Amplatzer Amulet™ device was successful, and the patient remained event-free at the one-year follow-up. Discussion: This case series emphasizes the complexity of stroke prevention in AF patients and underscores the need for an individualized approach. Incorporating LAAO alongside OAC can provide additional stroke protection for patients with inadequate response to anticoagulation. Further randomized controlled trials are needed to evaluate the efficacy and safety of this approach. In light of the limited evidence available, these cases contribute to the growing body of knowledge on the potential role of LAAO in secondary stroke prevention in AF patients with recurrent thrombo-embolic events despite appropriate anticoagulation.
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