Slim, Modiolar Cochlear Implant Electrode: Melbourne Experience and Comparison With the Contour Perimodiolar Electrode.

Shaul, Chanan; Weder, Stefan; Tari, Sylvia; Gerard, Jean-Marc; O'Leary, Stephen J; Briggs, Robert J (2020). Slim, Modiolar Cochlear Implant Electrode: Melbourne Experience and Comparison With the Contour Perimodiolar Electrode. Otology & neurotology, 41(5), pp. 639-643. Wolters Kluwer 10.1097/MAO.0000000000002617

[img] Text
Slim__Modiolar_Cochlear_Implant_Electrode_.16.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (146kB) | Request a copy

OBJECTIVE

To describe the tip fold over rate, scalar localization, and speech perception outcomes of the CI532 Slim Modiolar Electrode.

PATIENTS AND INTERVENTION

All patients receiving the CI532 implant before June 2018.

MAIN OUTCOME MEASURES

Outcome measures for adults patients include pre- and postoperative speech perception, operative report details, electrode position as determined by X-ray and cone beam computed tomography. Comparison made with previous experience with the Contour perimodiolar electrode (CI512). In the pediatric population tip fold-over rate, measured by intraoperative X-ray, was the exclusive outcome.

RESULTS

One hundred twenty-five CI532 devices were implanted in adults and 69 in children. Electrode tip fold-over occurred in eight adults cases and none among children (4.1%). Cone beam CT scans of 120 out of 125 adult patients confirmed scala tympani (ST) position in all but one case where the electrode had been placed into scala vestibuli. There were no translocations from ST to scala vestibuli. This compares favorably with the CI512 translocation rate of 17%. Speech perception outcomes demonstrated good performance with mean preop phoneme scores of 16.2% (±13) increasing to 64.2% (±14) and 71.6 (±16) 3 and 12-months postop, respectively. Compared with a matched group of CI512 recipients, CI532 recipient phoneme scores were significantly higher 3 and 12-months postop by 4 and 7%, respectively.

CONCLUSION

The slim modiolar, CI532 electrode has provided very reliable ST position with a low rate of tip fold over. A trend toward better speech perception scores in CI532 compared with CI512 was observed.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)

UniBE Contributor:

Weder, Stefan

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1537-4505

Publisher:

Wolters Kluwer

Language:

English

Submitter:

Stefan Weder

Date Deposited:

19 Jan 2021 16:30

Last Modified:

19 Jan 2021 16:39

Publisher DOI:

10.1097/MAO.0000000000002617

PubMed ID:

32150026

BORIS DOI:

10.48350/150344

URI:

https://boris.unibe.ch/id/eprint/150344

Actions (login required)

Edit item Edit item
Provide Feedback