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KMID : 1201420170100010019
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Journal of Neurocritical Care
2017 Volume.10 No. 1 p.19 ~ p.27
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D-dimer Predicts Short-Term Functional Outcome in Acute Ischemic Stroke
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Lee Jin-Hyung
Kim Kyung-Jin
Kim Meyung-Kug
Yoo Bong-Goo
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Abstract
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Background: The objective of the study was to evaluate the predictive value of plasma D-dimer at admission after acute ischemic stroke, and to assess its effect on short-term functional outcome.
Methods: Fasting plasma D-dimer was measured in 290 consecutive patients (61.7% men, mean age 67.0±12.3 years) within 3 days after the onset of acute ischemic stroke. The outcomes were measured at 3-months after stroke onset, by the modified Rankin Scale (mRS).
Results: Atrial fibrillation, hypertension, diabetes and involvement of the insular cortex, the levels of serum high sensitive C-reactive protein and D-dimer, as well as incidence of women and age, were all significantly higher in the poor outcome group (P<0.05). After the adjustment of National Institutes of Health Stroke Scale (NIHSS) scores on admission, the plasma D-dimer levels positively correlated with mRS (Spearman partial rho=0.247, P<0.001). The cut-off value of D-dimer level for prediction of poor outcomes was 0.35 mg/L (sensitivity 0.70, specificity 0.63, area under the curve 0.71). Furthermore, two multivariated logistic regression analysis models were performed. One model excluded the NIHSS score as an independent variable, and demonstrated that D-dimer (odds ratio, 1.24 for every 1.0 mg/L, P<0.05) was independently associated with poor functional outcome. Conversely, the other model which included the NIHSS score, did not show any such association.
Conclusions: Plasma D-dimer level is a useful marker for short-term outcomes in acute ischemic stroke, and may have a role in risk stratification for predicting a poor outcome.
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KEYWORD
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Cerebral Infarction, D-dimer, Prognosis
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