asthma
Conditions
Interventions
Gold Standard:Recurrent syndromes of dyspnea, cough, wheeze, and chest tightness combined with positive bronchoprovocation test.
was 
using 
 
Sponsors
Shanghai General Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: Aged 18-75 years, recurrent symptoms of chronic dyspnea, dry cough, wheeze, or chest tightness at least eight weeks duration, predicted FEV1 of 80% or greater with spirometric measurement, normal HRCT results.
Exclusion criteria
Exclusion criteria: Had respiratory tract infections in the past 8 weeks, peripheral blood test indicates abnormal but eosinophils, using montelukast, long-acting ß2-agonists, theophylline, anticholinergic agents, inhaled or oral corticosteroid in the previous 4 weeks, or having concomitant severe systemic diseases. Patients with current smoking history or a history of cessation less than 2 years.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Spirometry;FENO;IOS;Bronchial provocation test;SEN, SPE, ACC, AUC of ROC; | — |
Countries
China
Contacts
Public ContactWuping Bao
Shanghai General Hospital
Outcome results
None listed