title: Kurashiki Prehospital Stroke Subtyping Score (KP3S) as a means of distinguishing ischemic from hemorrhagic stroke in emergency medical services.
abstract: OBJECTIVE
  The 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).
  
  
  METHODS
  We 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.
  
  
  RESULTS
  A 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.
  
  
  CONCLUSIONS
  KP3S is useful for distinguishing IS from HS and for the evaluation of stroke patients by EMS.
authors: Department of Stroke Medicine, Kawasaki Medical School, Kurashiki, Japan. shinji-yamashita@umin.net
authors: Shinji
authors: S
authors: Yamashita
authors: Kazumi
authors: K
authors: Kimura
authors: Yasuyuki
authors: Y
authors: Iguchi
authors: Kensaku
authors: K
authors: Shibazaki
authors: Masao
authors: M
authors: Watanabe
authors: Takeshi
authors: T
authors: Iwanaga
mesh_terms: D000368:Aged; D002545:Brain Ischemia / Q000150:complications / Q000175:diagnosis*; D004636:Emergency Service, Hospital; D005260:Female; D006801:Humans; D020300:Intracranial Hemorrhages / Q000150:complications / Q000175:diagnosis*; D008297:Male; D012372:ROC Curve; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D020521:Stroke / Q000150:complications / Q000175:diagnosis*