Diagnostic value of impulse oscillometry (IOS) in obstructive sleep apnea syndrome

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00031880

Enrollment

100

Registered

2023-09-08

Start date

2019-09-02

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

G47.31

Interventions

Group 1: During the examination, the patient is in a sitting or upright upper body position. The patient breathes calmly and regularly into the apparatus through a mouthpiece. He wears a nose clip dur

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Indication: known OSAS, diagnosed by polysomnography - Signed informed consent

Exclusion criteria

Exclusion criteria: Lack of written consent

Design outcomes

Primary

Measure	Time frame
To test whether pulmonary function analysis using impulse oscillometry (IOS) can detect changes in the mechanical properties of the upper extrathoracic airways that are characteristic of OSA	—

Secondary

Measure	Time frame
Results of lung function measurement using IOS at different frequencies should be compared in order to determine the diagnostic significance and the correlation of pulse oscillometry with OSAS.	—

Countries

Germany

Contacts

Public ContactJens Schreiber

Universitätsklinik für Pneumologie

jens.schreiber@med.ovgu.de+49-391-67-15421

Outcome results

None listed

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