Status:

UNKNOWN

Impulse Oscillation to Evaluate Diagnostic Efficacy in Patients With Chronic Airway Disease

Lead Sponsor:

Zhujiang Hospital

Conditions:

Chronic Airway Disease

Eligibility:

All Genders

18-75 years

Phase:

NA

Brief Summary

The aim of the research is to explore the diagnostic efficacy of impulse oscillation (IOS) before and after bronchial provocation test (BPT) and bronchial dilation test (BDT) in chronic airway disease...

Detailed Description

The present study has the following objectives: to explore the diagnostic value of IOS before and after BPT/BDT in chronic airway disease, to assess the diagnostic accuracy of IOS in chronic airway d...

Eligibility Criteria

Inclusion

  • 18-75 years old, no gender limit;
  • The subject voluntarily cooperated with the research and signed an informed consent form;
  • Meet any of the following three criteria:
  • Patients with asthma, the standard diagnosis of asthma complied with the GINA 2019; ② Patients with COPD, the standard diagnosis of COPD complied with GOLD 2019; ③ The subjects in the healthy control group had normal vital capacity (baseline FEV1≥80% of the predicted value, FEV1/FVC was greater than the Lower Limit of Normal, and with negative result of BPT or BDT).

Exclusion

  • History of other lung diseases, such as cystic fibrosis, bronchiolitis obliterans, tuberculosis, lung cancer, etc.;
  • After taking corticosteroid therapy in the last 4 weeks, respiratory tract infection occurred within 8 weeks;
  • A history of myocardial infarction and stroke in the past 3 months; a history of severe arrhythmia, severe cardiac insufficiency, and unstable angina in the past 4 weeks, etc.;
  • In the past 4 weeks, severe hemoptysis and epileptic seizures require medication; severe hyperthyroidism;
  • Pregnant women;
  • Other researchers consider it inappropriate.

Key Trial Info

Start Date :

January 1 2020

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

June 1 2022

Estimated Enrollment :

172 Patients enrolled

Trial Details

Trial ID

NCT04668027

Start Date

January 1 2020

End Date

June 1 2022

Last Update

August 9 2021

Active Locations (1)

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Zhujiang Hospital of Southern Medical University

Guangzhou, Guangdong, China