DIAGNOSTIC METHOD FOR BRONCHIAL ASTHMA SEVERITY Russian patent published in 2009 - IPC A61B5/91 

FIELD: medicine; pulmonology.

SUBSTANCE: bronchial tree patency is evaluated by peak-flowmetering curve data. Herewith within at least one month of regular base therapy, bronchial tree patency monitoring is combined with determination of bronchial obstruction reversibility by measuring peak expiratory rate (PER) before introduction of bronchial spasmolytics to observe the first curve, and 30 minutes after introduction of bronchial spasmolytics to observe the second curve. Received indicators are compared with average healthy specifications to evaluate PER gain in % that is difference of PER before introduction of bronchial spasmolytics related to initial PER and expressed in %. Then one month later, received peak-flowmetering indicators are estimated to determine severity level as follows. In case of normal initial PERs not less than 80% of average healthy indicators with absence of indicator dynamics caused by bronchial spasmolytics, PER of the second peak-flowmetering curve increases less than by 15% in relation to PER of the first curve, bronchial asthma of mild severity is diagnosed. Low initial PERs of the first curve less than 80% of average healthy indicators and their increase by 15% and more in relation to reference values caused by bronchial spasmolytics with normal bronchial patency 80% and more in relation to average healthy indicators, indicate moderate severity. And stably recorded low PERs of the first peak-flowmetering curve less than 80% in relation to average healthy indicators and their increase caused by bronchial spasmolytics less than by 15% in relation to reference values and bronchial patency less than 80% of average healthy indicators show severe disease.

EFFECT: possibility to objectify diagnostics of bronchial asthma severity due to comparison of bronchial patency indicators and bronchial obstruction convertibility while monitored.

4 dwg, 1 ex