The California, ABCD, and unified ABCD2 risk scores and the presence of acute ischemic lesions on diffusion-weighted imaging in TIA patients.

Abstract:

BACKGROUND AND PURPOSE:Some clinical models, like California ABCD and unified ABCD2 scores, are now available to predict the early risk of stroke after a TIA. Despite the transitivity of symptoms, DWI identified an area of acute brain ischemia in almost half of patients. It would be interesting to know how the presence of DWI abnormalities relates to clinical risk scores to plan other prognostic variables or to recommend the performance of DWI. METHODS:We prospectively studied 135 consecutive TIA patients visited by the neurologists in our institution. All patients underwent DWI (3.8+/-1.7 days after symptoms onset). Clinical risk scores (California, ABCD, and ABCD2) were calculated prospectively for each patient. The identification of acute ischemic lesions (positive DWI) was related to the presence of clinical features and clinical risk scores. RESULTS:DWI were positive in 67 (49.6%) patients. After Bonferroni adjustment, elevated ABCD, ABCD2, and California scores were not associated with a positive DWI. However, some clinical symptoms such as facial palsy and motor weakness were associated with a positive DWI (P<0.001). The logistic regression model identified only facial palsy as an independent predictor of acute ischemic lesions (odds ratio 6.26, 95% CI 2.49 to 15.71, P<0.001). CONCLUSIONS:Clinical symptoms such as motor impairment, but not clinical risk scores, were associated with a positive DWI. Performing a DWI may add prognostic information to clinical risk scales as a predictor of stroke recurrence after TIA in future large studies.

journal_name

Stroke

journal_title

Stroke

authors

Purroy F,Begué R,Quílez A,Piñol-Ripoll G,Sanahuja J,Brieva L,Setó E,Gil MI

doi

10.1161/STROKEAHA.108.537969

subject

Has Abstract

pub_date

2009-06-01 00:00:00

pages

2229-32

issue

6

eissn

0039-2499

issn

1524-4628

pii

STROKEAHA.108.537969

journal_volume

40

pub_type

信件

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