Spirometric measurements of 81 subjects who performed bronchodilator tests and follow-up lung function tests at least one year later were analyzed retrospectively There was a negative correlation between bronchodilator responsiveness and the rate of d...
Spirometric measurements of 81 subjects who performed bronchodilator tests and follow-up lung function tests at least one year later were analyzed retrospectively There was a negative correlation between bronchodilator responsiveness and the rate of decline of lung function (FEV,: r=-0. 381, p<0.001). And there was also a positive correlation between the decline rate and baseline lung function (FEV,: r =0. 481, p <0.001) and a negative correlation betiveen the bronchodilator esponsiveness and baseline lung function(FEV,: r -0.462, p <0. 001). These results obtained from sub jects with obstructive airways diseases, including both asthma and chronic obstruc tive pulmonary disease, suggest that good bronchodilator responsiveness and less decline of lung function reflect the effect of treatment in asthmatics, and the bron chodilator test may be useful in identifying asthmatics and in predicting the prognosis of obstructive airways disease,