Heterogeneity of Lung Ventilation Determined by Electrical Impedance Tomography During Pulmonary Function Testing in Patients With Preserved Ratio Impaired Spirometry
Status: Recruiting
Location: See location...
Intervention Type: Diagnostic test
Study Type: Observational
SUMMARY
To evaluate the demographic characteristics of PRISm population in patients with pulmonary function tests recommended by outpatient physicians. To investigate whether EIT can identify spatial and temporal heterogeneity of lung ventilation in individuals with PRISm during pulmonary function testing. To investigate the distribution patterns of lung ventilation in individuals with PRISm using this technique, and provide references and evidence for early screening, diagnosis, treatment monitoring, and prognostic evaluation.
Eligibility
Participation Requirements
Sex: All
Minimum Age: 18
Maximum Age: 100
Healthy Volunteers: f
View:
• Age ≥18 years old. Patients who need to complete lung function tests assessed by outpatient physicians.
• Patients willing to participate in the study and sign an informed consent form.
Locations
Other Locations
China
Sir Run Run Shaw Hospital
RECRUITING
Hangzhou
Contact Information
Primary
Jiayi Li
22218299@zju.edu.cn
17326082419
Time Frame
Start Date: 2023-12-05
Estimated Completion Date: 2025-07-01
Participants
Target number of participants: 200
Treatments
Normal lung function
Normal lung function: After using a bronchodilator, FEV1/FVC ≥70%, FEV1 and FVC ≥80% of reference values.
Preserved ratio impaired spirometry
After using a bronchodilator, FEV1/FVC≥70%, FEV1 and/or FVC\<80% of reference values.
Chronic obstructive pulmonary disease
After using a bronchodilator, FEV1/FVC \<70%.
Related Therapeutic Areas
Sponsors
Leads: Sir Run Run Shaw Hospital