• Shinji Yamashita, Kazumi Kimura, Yasuyuki Iguchi, Kensaku Shibazaki, Masao Watanabe, and Takeshi Iwanaga.
• Department of Stroke Medicine, Kawasaki Medical School, Kurashiki, Japan. shinji-yamashita@umin.net
• Eur. Neurol. 2011 Jan 1;65(4):233-8.

Background And PurposeThe aim of this study was to devise a new ischemic stroke (IS)/hemorrhagic stroke (HS) stroke score to distinguish IS from HS for emergency medical services (EMS).Materials And MethodsWe studied patients with IS and HS who were admitted within 6 h of onset and transferred by the EMS. We compared characteristics of IS and HS to devise a new IS/HS score.ResultsA total of 227 patients (median age, 71 years; 139 males; IS, 127 patients; HS, 100 patients) were included in the study. On multivariate analysis following univariate analysis, presence of atrial fibrillation, diastolic blood pressure <100 mm Hg and lack of disturbance of consciousness were independently associated with IS. The following score was devised to distinguish IS from HS in EMS: Kurashiki Prehospital Stroke Subtyping Score (KP3S) = (presence of atrial fibrillation) · 2 + (diastolic blood pressure <100 mm Hg) + (lack of disturbance of consciousness). When KP3S was greater than 1, sensitivity for IS was 64% and specificity 85%. The C statistic of KP3S was 0.805.ConclusionKP3S is useful for distinguishing IS from HS and for the evaluation of stroke patients by EMS.Copyright © 2011 S. Karger AG, Basel.

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