Background & Objectives: The ischemic stroke is defined as cerebral dysfunction due to brain infarct which is induced by vascular obstruction. The related risk factors including hypertension, diabetes mellitus, cardioembolism and hyperlipidemia are investigated in several studies. The aim of this study was to determine the etiology of cerebral infarction in young adults ( - year-olds).

 Methods: All the patients in the age rang of - admitted to the neurology ward of Alavi Hospital in Ardabil between 2004 and 2005 with a diagnosis of cerebral infarction were included in this study. A questionnaire including demographic data, personal and family history of stroke and cardiac infarct, hypertension, diabetes, smoking and hyperlipidemia was filled out for all patients. Blood sugar, cholesterol, anticardiolipin antibody and beta- glycoprotein were examined. The patients underwent echocardiography. The data were analyzed using SPSS software (release ).

 Results: The total number of the patients was , including females (71.1%) and males (28.9%). The mean age was (SD= ). The etiologic factors based on their frequency were: cardioembolism ( ), positive antiphospholipid antibodies (35.5%), hyperlipidemla ( ), smoking ( ), hypertension ( ), oral contraceptive use ( ) and diabetes mellitus (13.7%).

 Conclusion: The most frequent etiologies of the cerebral infarcts in the young adults in this study were cardiogenic embolism and positive antiphospholipid antibodies. Other background factors were hyperlipidemia, smoking, hypertension, oral contraceptive use and diabetes mellitus respectively. Most of these etiologies can be intervened and prevented. The identification of these factors before occurrence of cerebral infarction can prevent this debilitating event.

Background & objectives: Early diagnosis of preeclampsia and its severity in pregnant women is greatly important for controlling this disease and preventing subsequent dangers for mother and the fetus. Current study is conducted to assess neutrophil-lymphocyte ratio (NLR) as a determining factor for the severity of the disease in patients with preeclampsia referring to Sabalan hospital, Ardabil.

Methods: This was a case control study on 50 pregnant women with severe preeclampsia (group 1), 50 pregnant women with mild preeclampsia (group 2), and 50 healthy pregnant women (group 3). The groups were homogenized for basic variants including age, gestational age, mean BMI, gravid and parity. Required information including age, gestational week, BMI, gravid, parity, 24-hour urine protein, systolic and diastolic blood pressure, and NLR were obtained and analyzed.

Results: The NLR was significantly higher in women with severe preeclampsia compared with mild preeclampsia (p=0.031) and healthy women (p<0.001). NLR did not show difference between mild preeclampsia and healthy women (p=0.209). Significant positive correlation was also observed between NLR and proteinuria (p<0.0001, r=0.558), systolic blood pressure (p=0.0026, r=0.244), and diastolic blood pressure (p=0.0028, r=0.242).

Conclusion: This study showed that maternal NLR can be used as a marker for preeclampsia severity.