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Inflammatory and hemostatic biomarkers associated with early recurrent ischemic lesions in acute ischemic stroke.
- Source :
-
Stroke [Stroke] 2009 May; Vol. 40 (5), pp. 1653-8. Date of Electronic Publication: 2009 Mar 05. - Publication Year :
- 2009
-
Abstract
- Background and Purpose: Early recurrent ischemic lesions (ERILs) on diffusion-weighted imaging after acute ischemic stroke have been suggested as a potential marker of early recurrent stroke. We hypothesized that biomarkers of inflammation or coagulation may be associated with the pathogenesis of ERILs and sought to investigate whether these biomarkers provide prognostic information on the risk of development of ERILs independently of clinical and imaging variables.<br />Methods: This prospective study enrolled 153 consecutive patients with acute ischemic stroke who underwent diffusion-weighted imaging within 24 hours and subsequently at 5 days after onset and whose plasma or serum for biomarkers (C-reactive protein, fibrinogen, d-dimer, tissue plasminogen activator, and plasminogen activator inhibitor-1) were collected within 24 hours of onset. Those receiving thrombolysis or interventional therapy were excluded. ERILs were defined as new ischemic lesions on 5-day diffusion-weighted imaging separate from the index stroke lesions, which were not accompanied by subsequent recanalization.<br />Results: ERILs were observed in 37 patients (24.2%). In univariate analysis, shorter time from onset to initial MRI (P=0.013), initial acute multiple infarcts (P<0.001), initial larger infarct volume (P=0.005), stroke subtype (P<0.001), elevated d-dimer (P=0.028), and anticoagulation after admission (P=0.001) were associated with ERILs. In multivariate analysis, initial acute multiple infarcts (OR, 16.60; 95% CI, 5.73 to 48.08), large artery atherosclerosis (OR, 4.62; 95% CI, 1.51 to 14.11), and log d-dimer (OR, 3.20; 95% CI, 1.14 to 9.00) remained independent predictors of ERILs.<br />Conclusions: These data suggest that elevated d-dimer level reflecting increase of thrombin generation and fibrin turnover may be an independent factor predicting ERILs.
- Subjects :
- Acute Disease
Aged
Biomarkers
Brain Ischemia blood
Brain Ischemia pathology
Data Interpretation, Statistical
Diffusion Magnetic Resonance Imaging
Disease Progression
Female
Fibrinolytic Agents therapeutic use
Humans
Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use
Image Processing, Computer-Assisted
Magnetic Resonance Imaging
Male
Middle Aged
Prospective Studies
Recurrence
Regression Analysis
Risk Factors
Stroke classification
Brain Ischemia complications
Encephalitis pathology
Hemostasis physiology
Stroke etiology
Subjects
Details
- Language :
- English
- ISSN :
- 1524-4628
- Volume :
- 40
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Stroke
- Publication Type :
- Academic Journal
- Accession number :
- 19265045
- Full Text :
- https://doi.org/10.1161/STROKEAHA.108.539429