Effect of repeated dives in salt and fresh water on function of the tympanic membrane and its anatomical changes.

• Conditions: Anatomical changes of tympanic membrane and the middle ear ventilation; H69.8; Other specified disorders of Eustachian tube

• Registration Number: DRKS00008968
• Lead Sponsor: HNO Uniklinik Köln

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2015-07-28
• Study Completion: 2015-09-01
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Complete
• Sex: All
• Target Recruitment: 51

Inclusion Criteria

Signed informed concent
The participant is planning to dive only in the saltwater (Sea)
The participant is planning to dive only in the fresh water (Lake)
The participant is 18years old or older

Exclusion Criteria

Diving 12h prior to the trial
Diving not allowed for health reasons
Participation in this trial denied by the participant

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The anatomical and physiological changes of the tympanic membrane <br>- Otoskopic examinations (TEED-classification) prior to the 1. dive every day and after every dive

Secondary Outcome Measures

Name	Time	Method
The tympanometric changes (equalization, compliance of the tympanic membrane) (without and after Valsalva). THe measurement is done before the 1st dive every day and after every dive.