[An analysis of the atrovent bronchodilator tests in bronchial asthma patients].

The aim of the study is to find out the optimum time for reading of the rapid bronchodilation inhalatory test with atrovent in asthmatic patients. The changes of the forced vital capacity, the forced expiratory flow for I s and the maximum expiratory flow were followed up in 21 asthmatic patients 15 min after atrovent inhalation and in 10 patients--20 and 30 min after the inhalation. The results showed a minimum bronchodilation response after 15 min which does not give information about the reversibility of the bronchial obstruction in bronchial asthma. A well-expressed bronchodilation, statistically significant, was found 30 min after the inhalation of atrovent.