ABSTRACT
Asthma attacks can result in respiratory alkalosis and decreased level of Ionized calcium and cerebral Vasoconstriction. Different studies indicate that Alkalosis and decreased level of CO2 can increase convulsive activities and neuronal excitability. This condition may increase level of Dopamin and risk of convulsion. This study was conducted to survey the relationship between asthma and epilepsy. In an Analitical- cross sectional study 400 Asthmatic patients who were reffered to outpatient clinic of Tabriz university of Medical sciences from January 2004 to July 2006, were concurrently surveyed for Epilepsy too. The results analyzed with Z test for one proportion. Number of patients who had two disease of asthma and Epilepsy concurrently was 12 which 7 of them were male and 5 female respectively. Mean age of patients was 5 +/- 2/3 with confidence interval [Ci = 3/5 - 6/5] Comparison of Asthmatic patients who were epileptic with Normal population was significant [P=0/009] Considering epilepsy prevalence rate of%1 in normal population and%3 in asthmatic patients and risk of respiratory alkalosis in asthmatic it is slrongly recommended to have special attention to Asthma attacks, in epileptic too