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Study on Normal Ranges of Ventilation Uniformity in Healthy Subjects

Study on Normal Ranges of Ventilation Uniformity in Healthy Subjects

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500112088
Enrollment
Unknown
Registered
2025-11-10
Start date
2025-07-15
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

To establish the pulmonary function range of Electrical Impedance Tomography (EIT) in normal individuals

Interventions

Forced Oscillation Technique (FOT) group:None

Sponsors

The First Affiliated Hospital of Guangzhou Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
5 Years to 79 Years

Inclusion criteria

Inclusion criteria: 1.Aged >= 5 years and = 0.90 and Visual Analogue Scale (EQ-VAS) score >= 75. 4.Normal pulmonary function (FEV1 > LLN, FEV1/FVC > LLN). 5.If other conditions such as coronary heart disease, hypertension, or diabetes are present, relevant information must be documented. 6.Never smoker. 7.No regular use of medications such as corticosteroids or bronchodilators. 8.Able to cooperate in performing spirometry (i.e., pulmonary ventilation function testing). 9.Signed informed consent form.

Exclusion criteria

Exclusion criteria: 1.People for whom EIT is not suitable (such as those with a cardiac pacemaker, skin allergy or incomplete skin, pregnant individuals, etc.); 2. Situations judged by the researcher as likely to affect the conduct of the clinical study and the determination of the study results.

Design outcomes

Primary

MeasureTime frame
Distribution of regional lung function indices in the normal population (age, gender, height, region);

Secondary

MeasureTime frame
Correlation between Regional Pulmonary Function and Traditional Pulmonary Function;

Countries

China

Contacts

Public ContactLing Sang

The First Affiliated Hospital of Guangzhou Medical University

sonysang999@vip.163.com+86 18588829307

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Aug 10, 2026