Stroke prevention in atrial fibrillation: findings from Tuscan FADOI Stroke Registry

Submitted: 20 November 2013
Accepted: 29 January 2014
Published: 12 June 2014
Abstract Views: 1488
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Despite vitamin K antagonists (VKAs) are considered the first choice treatment for stroke prevention in atrial fibrillation (AF), literature shows their underuse in this context. Since data about VKAs use prior and after acute stroke lack, the aim of this study was to focus on management of anticoagulation with VKAs in this context. Data were retrieved from Tuscan FADOI Stroke Registry, an online data bank aimed to report on characteristics of stroke patients consecutively admitted in Internal Medicine wards in 2010 and 2011. In this period 819 patients with mean age 76.5±12.3 years were enrolled. Data on etiology were available for 715 of them (88.1%), 87% being ischemic and 13% hemorrhagic strokes. AF was present in 238 patients (33%), 165 (69.3%) having a known AF before hospitalization, whereas 73 patients (31.7%) received a new diagnosis of AF. A percentage of 89% of strokes in patients with known AF were ischemic and 11% hemorrhagic. A percentage of 86.7% of patients with known AF had a CHADS2 ‰¥2, but only 28.3% were on VKAs before hospitalization. A percentage of 78.8% of patients treated with VKAs before stroke had an international normalized ratio (INR) ‰¤2.0; 68.7% of patients with VKAs-related hemorrhagic strokes had INR ‰¤3.0. Combined endpoint mortality or severe disability in patients with ischemic stroke associated with AF was present in 47%, while it was present in 19.30% and 19.20% of atherothrombotic and lacunar strokes, respectively. At hospital discharge, VKAs were prescribed in 25.9% of AF related ischemic stroke patients. AF related strokes are burdened by severe outcome but VKAs are dramatically underused in patients with AF, even in higher risk patients. Efforts to improve anticoagulation in this stroke subtype are warranted.

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Masotti, L., Innocenti, R., Spolveri, S., Chiti, I., Panigada, G., Seravalle, C., Landini, G., Fortini, A., Migliacci, R., Laureano, R., & Investigators, for T. F. S. R. (2014). Stroke prevention in atrial fibrillation: findings from Tuscan FADOI Stroke Registry. Italian Journal of Medicine, 9(2), 134–140. https://doi.org/10.4081/itjm.2014.450

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