Early screening of lung function deterioration in smoking and non-smoking subjects

screening of lung function deterioration using electrical impedance tomography with smokers and non-smokers at sea levels

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2300076673

Enrollment

Unknown

Registered

2023-10-16

Start date

2023-10-16

Completion date

Unknown

Last updated

2023-10-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructive lung diseases

Interventions

lung function deterioration indicated by EIT:NA

lung function normal indicated by EIT:NA

Eligibility

Sex/Gender

All

Age

18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. age between 18 and 80 2. scheduled for annual body check 3. healthy and able to complete the forced vital capacity maneuver 4. willing to participate the study

Exclusion criteria

Exclusion criteria: 1. History or clinical signs of lung diseases such as cancer (PS score>2), COPD (mMRC score>3), Asthma (ACQ-6 score>1.5), pneumonia (CURB-65 score>2). 2. Any contraindication for the use of EIT (pacemaker, automatic implantable cardioverter defibrillator, and implantable pumps) 3. Forced expiratory volume at 1 second < 80% predicted

Design outcomes

Primary

Measure	Time frame
positive rate of deterioration reconfirmed by CT;	—

Secondary

Measure	Time frame
positive rate of deterioration confirmed by EIT;correlation between EIT-based lung function and tobacco consumption;	—

Countries

China

Contacts

Public ContactShuoyao Qu

Xijing Hospital

912319583@qq.com+86 135 7285 7122

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026