[Methacholine test in the study of non-specific bronchial reactivity in a group of patients allergic to pollen].
We have studied thirty subjects sensitive to pollens suffering from seasonal rhinitis and/or mild seasonal asthma. The patients were submitted to a preseasonal and to a seasonal evaluation of their bronchial reactivity by means of a metacholine provocation test in order to measure possible variations of their responsiveness. Our data shown that the metacholine provocation test is not substantially influenced by seasonal pollen stimulation; it is likely that in patients sensitive to pollens, aspecific bronchial reactivity is intermittent, so explaining the inconstant behaviour of responsiveness observed in our allergic patients.
Balduin
R
R
Divisione di Pneumologia, Complesso Convenzionato Ospedale, Università degli Studi di Padova.
Festi
G
G
Sieve
R
R
Benetollo
V
V
Tanzola
C
C
Franco
R
R
Zuin
R
R
D000293:Adolescent; D000328:Adult; D000485:Allergens / Q000009:adverse effects; D016535:Bronchial Hyperreactivity / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D001985:Bronchial Provocation Tests / Q000379:methods*; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D016210:Methacholine Chloride; D008875:Middle Aged; D011058:Pollen
D000485:Allergens; D016210:Methacholine Chloride
Il test alla metacolina nello studio della reattività bronchiale aspecifica in un gruppo di pollinosici.