Chronic obstructive pulmonary disease
Conditions
Interventions
Assessment of percent predicted forced expiratory volume in one second using non-contact screening system
Sponsors
St. Marianna University School of Medicine
Tokyo Metropolitan University University of Electro-Communications HUAWEI Japan
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. COPD was diagnosed based on the Japanese Respiratory Society guidelines for the diagnosis and treatment of COPD, 4th Edition. 2. Ex-smokers. 3. Patients who were stable for more than 4 weeks without COPD related exacerbations. 4. Patients 40 years and over. 5. Patients who agreed to participate in this study with written informed consent.
Exclusion criteria
Exclusion criteria: 1. Patients with asthma, tuberculosis, sever heart diseases and active malignant tumor. 2. Patients who are or may be pregnant. 3. Any other cases regarded as inadequate for study enrollment by the investigators.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The correlation of percent predicted forced expiratory volume in one second between spirometer and non-contact COPD screening system | — |
Secondary
| Measure | Time frame |
|---|---|
| The comparison of patterns for flow volume curves between spirometry and non-contact COPD screening system. The comparison of forced expiratory flow at 50% vital capacity (V50) and forced expiratory flow at 25% vital capacity (V25) between spirometry and non-contact COPD screening system. | — |
Countries
Japan
Contacts
Public ContactHiroki Nishine
St. Marianna University School of Medicine Division of Respiratory Medicine, Department of Internal Medicine
Outcome results
None listed