Evaluation of a revised indication for determining adult cochlear implant candidacy.

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Evaluation of a revised indication for determining adult cochlear implant candidacy.

Laryngoscope. 2017 Feb 24;:

Authors: Sladen DP, Gifford RH, Haynes D, Kelsall D, Benson A, Lewis K, Zwolan T, Fu QJ, Gantz B, Gilden J, Westerberg B, Gustin C, O'Neil L, Driscoll CL

Abstract
OBJECTIVE: To evaluate the use of monosyllabic word recognition versus sentence recognition to determine candidacy and long-term benefit for cochlear implantation.
STUDY DESIGN: Prospective multi-center single-subject design.
METHODS: A total of 21 adults aged 18 years and older with bilateral moderate to profound sensorineural hearing loss and low monosyllabic word scores received unilateral cochlear implantation. The consonant-nucleus-consonant (CNC) word test was the central measure of pre- and postoperative performance. Additional speech understanding tests included the Hearing in Noise Test sentences in quiet and AzBio sentences in +5 dB signal-to-noise ratio (SNR). Quality of life (QoL) was measured using the Abbreviated Profile of Hearing Aid Benefit and Health Utilities Index.
RESULTS: Performance on sentence recognition reached the ceiling of the test after only 3 months of implant use. In contrast, none of the participants in this study reached a score of 80% on CNC word recognition, even at the 12-month postoperative test interval. Measures of QoL related to hearing were also significantly improved following implantation.
CONCLUSION: Results of this study demonstrate that monosyllabic words are appropriate for determining preoperative candidate and measuring long-term postoperative speech recognition performance.
LEVEL OF EVIDENCE: 2c. Laryngoscope, 2017.

PMID: 28233910 [PubMed - as supplied by publisher]

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