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Characteristics of Flow-Volume Curve in Adults with Severe Obstructive Sleep Apnea hypopnea syndrome

Characteristics of Flow-Volume Curve in Adults with Severe Obstructive Sleep Apnea hypopnea syndrome

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900020714
Enrollment
Unknown
Registered
2019-01-15
Start date
2019-01-15
Completion date
Unknown
Last updated
2019-01-28

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

Conditions

sleep-disordered breathing

Interventions

Cases:Nil

Sponsors

The First Affiliated Hospital of Guangzhou Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: Severe obstructive sleep apnea hypopnea syndrome patients who underwent pulmonary function tests

Exclusion criteria

Exclusion criteria: 1. Patients with severe respiratory diseases other than obstructive sleep apnea hypopnea syndrome; 2. Treatment of obstructive sleep apnea hypopnea syndrome in recent three months.

Design outcomes

Primary

MeasureTime frame
apnea-hypopnea index;oxygen desaturation index;Forced vital capacity;forced expiratory volume in one second;—

Countries

China

Contacts

Public ContactNuofu Zhang

The First Affiliated Hospital of Guangzhou Medical University

nfzhanggird@163.com+86 020-83062850

Outcome results

None listed

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