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Randomized Controlled Trial
. 2014 Oct;9(7):873-8.
doi: 10.1111/ijs.12150. Epub 2013 Oct 22.

Types of stroke recurrence in patients with ischemic stroke: a substudy from the PRoFESS trial

Affiliations
Randomized Controlled Trial

Types of stroke recurrence in patients with ischemic stroke: a substudy from the PRoFESS trial

Danilo Toni et al. Int J Stroke. 2014 Oct.

Abstract

Background: Risk profiles for stroke recurrence are poorly characterized.

Aims: We determined the variation in the risk and type of recurrent stroke among index ischemic stroke subtypes, and whether index stroke subtype and conventional stroke risk factors were predictors of stroke recurrence.

Methods: Patients enrolled in the Prevention Regimen for Effectively Avoiding Second Strokes trial were included in this study.

Results: In 1794 patients' recurrent stroke subtypes were the same as the index stroke in: 48·3% of patients with large artery atherothrombosis stroke; 50% of patients with cardioembolic stroke; 48·7% of patients with small artery occlusion stroke; 8·1% of patients with stroke of other etiology, and 45·3% of patients with undetermined etiology stroke. Patients with cardioembolic stroke, who were unwilling or unable to take oral anticoagulants, had the greatest risk of stroke recurrence. Predictors of stroke recurrence in multivariable analysis were: older age and previous stroke among large artery atherothrombosis strokes; older age, male sex, previous stroke, previous transient ischemic attack, hypertension, diabetes, and tobacco use among small artery occlusion strokes; older age among cardioembolic strokes; atrial fibrillation and anti-diabetic medications among other etiology strokes; older age, previous stroke and atrial fibrillation among undetermined etiology strokes. Predictors of brain hemorrhage as recurrent stroke were index small artery occlusion stroke, older age, previous stroke, and antiplatelet treatment with aspirin plus extended-release dipyridamole.

Conclusions: Risk predictors for stroke recurrence and for brain hemorrhage differ by index ischemic stroke subtype, information that is important when initiating secondary prevention therapy.

Keywords: ischemic; predictors; recurrence; risk factors; stroke.

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