Influence of Freediving on Function of the Middle Ear and the Eustachian Tube

Influence of Freediving on Function of the Middle Ear and the Eustachian Tube - Freediving-trial

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00013946

Enrollment

Registered

2018-02-13

Start date

2018-02-15

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

T70.0 H69.8

Interventions

Group 1: Freedivers participate voluntary in this study. Otoscopy, Eustachian Tube function test, questionnaire about subjective complaints will be carried out before diving and after each session of

Eligibility

Sex/Gender

All

Age

16 Years to No maximum

Inclusion criteria

Inclusion criteria: - Written consent for the study - planend repeated freediving sessions - Age = / > 16 Jahre. - Age 16-18 Jahre: Written consent of the parent required

Exclusion criteria

Exclusion criteria: - Freediving 12h before the study - Not fit / Able to dive - participant does not want to participate

Design outcomes

Primary

Measure	Time frame
Middle ear Barotrauma Assessed clinically (otoskop) before and after every Freediving session Classification according to TEED (0 regular finding to 4 perforation of the tympanic membrane)	—

Secondary

Measure	Time frame
Change of Peak Pressure in the middle ear Assessed before and after every free diving session Assessed by eustachian tube function test (tympanometry)	—

Countries

Germany

Contacts

Public ContactMaria Grosheva

HNO Uniklinik Köln

maria.grosheva@uk-koeln.de02214784795

Outcome results

None listed

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