bronchial asthma
Conditions
Interventions
case series:None
Sponsors
Affiliated Hospital of Guangdong Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 79 Years
Inclusion criteria
Inclusion criteria: 1. Aged 18-79 years (including 18 and 79 years old), gender and race are not limited; 2. Diagnostic criteria (those who meet items 1-4 or 4 and 5 can be diagnosed as asthma): (1) Repeated episodes of wheezing, shortness of breath, chest tightness or coughing are mostly related to exposure to allergens, cold air, physical and chemical stimuli, viral upper respiratory tract infections, exercise, etc.; (2) At the time of the attack, scattered or diffuse wheezing can be heard in both lungs, mainly in the expiratory phase, and the expiratory phase is prolonged; (3) The above symptoms and signs can be relieved by treatment or by themselves; (4) Excluding wheezing, shortness of breath, chest tightness and cough caused by other diseases; (5) Those with atypical clinical manifestations (such as no obvious wheezing or signs) should have at least one of the following positive tests: 1) Positive bronchial provocation test or exercise provocation test; 2) The positive FEV1 increase of bronchodilation test is >=12%, and the absolute value of FEV1 increase is >=200ml; 3) The intraday (or 2-week) variation rate of peak expiratory flow (PEF) is >=20%.
Exclusion criteria
Exclusion criteria: 1. The required information is incomplete; 2. The patient has other respiratory diseases other than COPD, such as COPD, interstitial pneumonia, active pulmonary tuberculosis, community-acquired pneumonia, lung cancer, bronchiectasis, cor pulmonale, pulmonary embolism, etc.; 3. Alcoholism or narcotic drug abuse, history of drug use, or a history of mental illness (such as schizophrenia, obsessive-compulsive disorder, depression), confrontation of character, bad motivation, paranoia, or other emotional or intellectual problems that may affect the informed validity of participation in this research; 4. Participating in other drug clinical trial projects, or stopping for less than 3 months; 5. Patients who cannot cooperate with the relevant examinations of this project and do not agree to sign the informed consent form.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| pulmonary function examination; | — |
Countries
China
Contacts
Public ContactChen Xiaodong
Outcome results
None listed