Prevalence of aeroallergens sensitivity in asthmatic patients from Ahvaz

Background: Asthma is a chronic inflammatory disease of the airways which is associated with the triad of cough, wheezing and dyspnea. Different allergens can cause allergic symptoms. Identification of allergens was essential in each region for the prevention and treatment of allergic diseases. The purpose of this study was to determine sensitivity to common aeroallergens by skin prick test. Material and methods: In this cross sectional study, 111 volunteers with the sign and symptoms of allergic diseases who referred to Ahvaz Jahad-e-daneshgahi polyclinic during 2010- 2011 were investigated. All patients were subjected to skin prick test with 24 common allergenic extracts. Data were analyzed by SPSS-18 software using Chi square test. Results: Ninety nine patients (89.2%) had positive skin test to at least one of the aeroallergens. Common outdoor allergens (88%) were higher than indoor allergens (73%). Outdoor allergens with lots of weeds (86%) were the most common allergens. And also among the weeds, Salsola kali were the highest frequency (86.2%); and among the indoor allergen, mites were the highest frequency (40.8%). The average concentration of total serum IgE levels in patients with positive reactions was 156 IU / ml. Conclusion: Weeds and mites were the most common cause of asthmatic diseases in Ahvaz. Identifying and determining the most common allergens in the region can provide the necessary recommendations to Patients took an important step in controlling and preventing disease.