An alternative procedure for cochlear implantation: transcanal approach.

CONCLUSION

The transcanal approach could be an effective and time-saving method for selected cochlear implantation (CI) candidates.

OBJECTIVE

This study was designed to introduce the method of CI via the transcanal approach used in patients with abnormal temporal bone structure or chronic otitis media (COM).

METHODS

The medical records of six patients who underwent CI via the transcanal approach were reviewed retrospectively. The electrode was inserted through the external auditory canal (EAC) after tympanomeatal flap elevation and cochleostomy.

RESULTS

Three patients had a history of inactive COM. In the remaining patients, cochleostomy via the transmastoid approach was difficult due to aberrant anatomic structures such as vascular anomaly, narrow aditus, and anteriorly displaced sigmoid sinus. All patients underwent CI via the transcanal approach successfully. There was no serious complication postoperatively.