Clinical features and skin prick test in chronic urticarial patients at Hue University of Medicine and Pharmacy Hospital
Background: Chronic urticaria is an allergic skin condition that significantly affects the quality of life. Skin prick test determines allergens in order to prevent recurrent urticaria. Materials and methods: 43 chronic urticaria patients visiting the Dermatology Clinic from 09/2017 to 09/2018 were tested for 16 allergens on the skin at the Immunology Department, Hue University of Medicine and Pharmacy. Results: 30 females and 13 males participated in the study (female/male 2.3/1). The average number of disease episodes was 3.1 ± 1.4 times; with the other allergic diseases accompanied by 41.9% of patients; the average severity score was 10.0 ± 2.0 with the serious condition accounting for 60.5%. 86.0% of patients had a positive skin prick test, of which the positive rate for respiratory allergens (mites with the highest rate was 34.9%) was higher than the food allergens (crab 30.2%). There is a correlation between positive skin prick results and atopic allergies. Conclusion: The majority of chronic urticaria patients were severe and had positive skin prick results, in which mites had the highest incidence of allergy. Key words: urticaria, chronic urticaria, skin prick test, allergen, allergic