We investigated that the usefulness of DaniScan
® for control of the environment in bronchial asthma patients attending our hospital. In October 2002, we had nine patients (5 men and 4 women; mean age 42.3 years old) with a positive RAST reaction to mites. We investigated the relation between the DaniScan
® score, RAST score, HRT score, and exacerbation of asthma. Subsequently, we gave pamphlets to the patients regarding control of the environment. In October 2004, we carried out a clinical investigation of six of these patients for a change of symptoms, therapy for asthma, RAST score, HRT score, and DaniScan
® score. Using Fisher official approval and Wilcoxon official approval, p<0.05 was estimated as those significant with a correlation with a correlation coefficient estimated as p<0.10 for the analysis between 2 groups. The patients of positive DaniScan
® had a high RAST score and HRT score. It was thought that with the high score (score 3-4) of, DaniScan
® was related to the expression of asthma symptoms. DaniScan
® could easily and accurately measure the degree of mite allergen revelation in the house and proved to be useful for control environment. The decrease of RAST and HRT scores as a result of control of the environment suggested exacerbation of asthma. However, because only a few cases were considered in this study, DaniScan
® is yet to be determined effective in control of the environment. More studies are needed.
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