Özet:

Introduction: A blood test supporting the clinical and radiological findings used for the diagnosis of acute ischemic stroke (AIS) is needed in the geriatric population. The aim was to demonstrate the value of S100B levels for the differential diagnosis of AIS. Materials and Method: 55 patients who have been diagnosed with AIS after admittance to an emergency room and 20 patients with transient ischemic attack (TIA) were enrolled. AIS diagnosis was based on a neurology consultation in agreement with laboratory and radiological findings. S100B levels were determined in fasting venous blood samples by an ELISA method. The results were expressed as median (minimum-maximum). Results: S100B levels were significantly higher in the AIS group [63.86 (50-1876) pg/ml] than the TIA group [50.14 (< 50- 87.63) pg/ml] (p= 0.001). S100B concentrations were not influenced by age, gender, body mass index or by the presence of coronary artery disease, diabetes mellitus, hyperlipidemia, cardiac arrhythmia, peripheral vascular disease, family history or cigarette smoking. The ROC analysis demonstrated that the area under the curve was 0.836 (p= 0.0001). Conclusion: S100B measurement is a rapid, simple and cost-effective analysis which may be used for the differential diagnosis of AIS in the early stages, especially in emergency and intensive care settings.

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