Hearing test during middle ear surgery

Efficiency of intraoperative hearing test using ASSR - Intraoperative hearing test using ASSR

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000037623

Enrollment

Registered

2019-08-31

Start date

2019-10-21

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

chronic otitis media, cholesteatoma, ossicular disruption, otosclerosis

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients whose pure tone audiometey are available before operation. 2. Patients who undergo operations with possibility of hearing improvement such as tympanplasty, stapes surgery and myringoplasty. 3. Patients (or their guardians if they are not adults) who agree to join this study by consent form.

Exclusion criteria

Exclusion criteria: 1. Inappropriate patients judged by operators ex. patients whose hearing may not improve. 2. Patients who undergo operation by local anesthesia.

Design outcomes

Primary

Measure	Time frame
Comparison thresholds shift of ASSR during operation and hearing threshold shift by audiometer before and after operation.	—

Secondary

Measure	Time frame
measuring time	—

Countries

Japan

Contacts

Public ContactTaisuke Kobayashi

Kochi University Department of Otolaryngology, Medical School

tkobayashi@kochi-u.ac.jp0888802393

Outcome results