[Long term follow up after parenteral specific hyposensitization in children (author's transl)]

The long term follow up of 55 children with allergy treated by specific hyposensitization therapy is reported. Hyposensitization therapy had been terminated from 2--7 years previously. The success of treatment was subjectively judged to be satisfactory of good in 62% of the cases. In the group of asthmatic children, asthma attacks had decreased or ceased in 74% of the cases: in children with hay fever only 24% continued to have as many or more symptoms as before treatment. In children with asthma and pollen allergy, the success rate was slightly higher with aqueous extracts (68%) than with pyridine-extracted and alum-precipitated extract administration (43%). Also in children with hay fever symptoms alone the use of aqueous extracts seemed to bring somewhat better results (57% with good or satisfactory success) in comparison with pyridine-extracted and alum-precipitated extracts (45%). Side effects of hyposensitization therapy occured in 29 children (53%).