To counsel about the future prospects of EIA in their children, it is very important to know the prognosis of EIA. As there is no report concerning the natural history of EIA, we performed this study.
Forty-seven children (male 37, female 10) were included in this longitudinal evaluation, all of whom were diagnosed as having EIA through the exercies loading test at least two years ago (mean 3 5/12 years). We performed a follow-up exercise
loading
test and compared the results. The children were tested with up and down stairs method for 6 minutes. The changes in pulmonary function were measured by a peak flow meter.
@ES The results are as follows:
@EN 1. Twenty-eight cases of 47 children(59.6%) didn't reveal EIA when we performed the follow-up exercise loading test. There was no difference between boys and girls.
2. When we analyzed the data according to the severity of EIA, we had the following results: 70.8% of mild EIA, 53.8% of moderate EIA, and 40.0% of severe EIA were shown to not have EIA.
3. The remission of EIA was not correlated with total eosinophil count, total IgE level and the number of positive allergen in skin test at initial diagnosis.
In conclusion, the 59.6% of children with EIA demonstrated to have remission of their EIA after 2 or more years. The remission rate was the highest (70.8%) in mild EIA.
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