A Case of Bronchial Asthma Caused by Cat Hair with Dual Asthmatic Responses

Abstract

A case of bronchial asthma caused by cat hair was presented. A 28-year-old female complaining of cough and wheezing was admitted to our hospital. The patient had had asthmatic attacks for five years. She has kept one cat in her parents' house for about ten years and the other one in her own house for six years. It was found that she had positive skin test, IgG-RAST score and bronchial provocation test to cat hair. Especially, a bronchial provocation test to cat hair was positive in both immediate and late responses. Thus, her asthma was thought to be caused by cat hair. This case is the sixth case report of cat induced asthma and the first one of cat induced dual asthmatic responses in literature in Japan.