Using the CLARION cochlear implant in cochlear ossification.
This paper is a retrospective review of 5 patients with various degrees of cochlear ossification who were implanted with the CLARION Multi-Strategy Cochlear Implant. Preoperative computed tomography scans, intraoperative findings, surgical technique, and hearing outcomes are discussed in a case report format. Full implantation was achieved in all cases by a systematic approach that included drill-through of proximal obstruction (2 cases), scala vestibuli insertion (2 cases), and complete drill-out (1 case). The only complication was delayed wound healing in a patient with sickle cell disease, chronic active hepatitis, and steroid dependency on antimetabolite therapy. Early results show that the 4 patients with at least 3 months of experience have a mean open-set sentence recognition score of 55% and a mean open-set word recognition score of 24%. The conclusion is that implantation of the Clarion device in ossified cochleas can be successful in all degrees of ossification and can provide significant hearing benefit.
Bird
P A
PA
Department of Otolaryngology, University of Miami Ear Institute, Florida 33101, USA.
Balkany
T J
TJ
Hodges
A V
AV
Butts
S
S
Gomez
O
O
Lee
D
D
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D015834:Cochlear Diseases / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D019929:Cochlear Implantation; D003054:Cochlear Implants; D005260:Female; D006309:Hearing / Q000502:physiology; D006801:Humans; D008297:Male; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome