Asthma
Conditions
Interventions
Gold Standard:
Index test:
Sponsors
West China Hospital, Sichuan University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Signed informed consent; 2. Recurrent attacks chest cough/distress/ stridor/ dyspneic respiration; 3. Respiratory sound in eupnea is normal; 4. The chest X-ray is roughly normal; 5. Patient can cooperate in the lung function measuring, brinchial provocation test or bronchodilator test; 6. Older than 18 years old.
Exclusion criteria
Exclusion criteria: 1. Suffers from great disease of the foundation disease,such as tumour, diabetes,serious hypertension, heart disease, or the disease with airway limitation other than asthma,such as COPD, bronchiectasis, cystic fibrosis; 2. Uses one of the following medicines in the earlier 12 hours before the lung function measuring: theocine; all the inhaied or oral breceptor agonist; inhaled, oral or system glucocorticosteroids; antihistamine drug; 3. Children, period of pregnancy or lactation women.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| specificity;sensitivity; | — |
Countries
China
Contacts
Public ContactWang Gang
Outcome results
None listed