Analysis of bronchial dilation test and bronchial provocation test for 650 cases of asthma patients / 重庆医学

ABSTRACT

Objective To analyse the airway reversibility and variability for bronchial asthmatic patients .Methods The status of test positive ratio and combined airflow limitation were analysis for 650 Clinical diagnosed asthmatic patients .527 cases were given bronchial dilation test and 123 cases were given provocative test .Results Positive ratio of 527 cases bronchial dilation test was 41 . 4% .Positive ratio of 123 cases provocative test was 52 .0% .The airflow limitation(FEV1/FVC% <70% ) ratio of total 650 cases was 34 .0% .In the 193 cases of combined airflow limitation patients which was given bronchial dilation test ,the positive ratio of bronchial dilation test was 61 .7% .Conclusion Bronchial dilation test need repeat because of its less sensitivity .The positive ratio of provocative test is not high ,so the patients of provocative test negative couldn′t exclude the diagnosis of asthma .The ratio of bronchial dilation test was high for combined airflow limitation asthmatic patients .Its may clew that the patients combined airflow limitation may be exacerbation and need actively therapy .