RESUMEN
Seizures are frequent and important disorders in patients admitted in emergency wards, and arise from a variety of underlying conditions. This study was done to evaluate the etiology of first seizure in Neurology Emergency Department. In this descriptive study, 170 patients reffered to Neurology Department of Ghaem Hospital in the year 2003 were studied. Obtaning medical history and performing clinical examination, a questionnaire was filled and paraclinical studies [peripheral blood examination, EEC, bran CT scan and, in some cases, MRI] were done. Data was analyzed by descriptive statistics and frequency distribution tables. Out of 170 patients 97 were male and 73 female; mostly 33- 60 years of age. Most common etiologies of seizure in this study were: idiopathic, stroke, neoplastic, trauma, withdrawal syndrome, CNS infections, congenital and degenerative diseases. In this study the most common cause of first seizures was idiopathic epilepsy; but cerebrovascular diseases, head injuries, and opioid withdrawal syndrome were among the frequent causes of first seizures, wich can be controlled to reduce the number of seizures in our socity