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Cochlear Implantation After Gamma Knife Radiosurgery With eABR and Correlation to Postoperative Hearing Results - a Pilot Study

Hearing Loss Clinical Trial

Official title:
Cochlear Implantation After Gamma Knife Radiosurgery With eABR and Correlation to Postoperative Hearing Results - a Pilot Study

Clinical Trial Summary

Patients undergoing cochlear implantation after radio surgery for vestibular schwannoma will be included in the study. Patients will undergo preoperative and intraoperative eABR measurement. Correlations to postoperative hearing results will be drawn.

Clinical Trial Description

Patients treated with radio surgery for vestibular schwannoma often suffer from hearing loss. Especially when the contralateral side has progressive hearing loss assessment if cochlear implantation is feasible, should be carried out. Patients undergo extensive audiometric testing. Additionally, patients will undergo preoperative eABR. Intraoperatively eABR is carried out and cochlear implantation is performed. The eABR results will be correlated with postoperative hearing. EABR measurements are not part of the study. The results of eBAR will be categorized in three groups (good response, weak response and no response). The eABR results will then be correlated to speech understanding with cochlear implants measured with Freiburger monosyllables test. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03745534
Study type Observational
Source Medical University of Vienna
Contact
Status Recruiting
Phase
Start date August 1, 2018
Completion date June 30, 2023
View Details
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