Endovascular clot retrieval in acute stroke with large ischaemic core is not always associated with poor outcomes

Internal Medicine Journal
Kenneth SimPeter Mitchell

Abstract

The benefits of endovascular clot retrieval (ECR) for anterior circulation stroke with large ischaemic cores remain uncertain. In spite of recent pooled analysis of randomised controlled studies, conclusions regarding the fate of large ischaemic cores cannot be reached given the small number of included patients. To evaluate outcomes of ECR in acute stroke with large ischaemic core. This was a single centre retrospective study of patients treated with ECR in the period 2012-2017. The inclusion criteria were anterior circulation stroke with symptom onset less than 6 h, baseline computed tomography perfusion and a 90-day clinical follow up defined by the modified Rankin score. Two hundred and sixty-one patients were included. Median age of 72 (interquartile range: 61-78) and 59% were male. The mean ischaemic core volume was 27.6 mL (SD: 34.9 mL). There were 235 patients with an ischaemic core volume of <70 mL and 26 patients with an ischaemic core volume of ≥70 mL. There was no statistically significant difference; however, in a 90-day functional independence with 66% (154/235) in the <70 mL core group and 54% (14/26) in the ≥70 mL core group reaching a 90-day modified Rankin score ≤2. We found that patients selected for ECR with...Continue Reading

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