Determining Candidacy for the Cochlear™ Nucleus® Hybrid™ System
The Nucleus Hybrid System is indicated for unilateral use in patients aged 18 years and older who have residual low frequency hearing sensitivity and severe to profound high-frequency sensorineural hearing loss, and who obtain limited benefit from appropriately fitted bilateral hearing aids.
- Typical preoperative hearing of candidates ranges from normal to moderate hearing loss in the low frequencies (thresholds better than 60 dB HL up to and including 500 Hz) and
- Severe to profound mid to high-frequency hearing loss (threshold average of 2000, 3000, and 4000 Hz ≥75 dB HL) in the ear to be implanted.
- For individuals with post-surgical low frequency hearing, the sound processor combines acoustic amplification for the low frequencies with electric stimulation for the high frequencies.
- The CNC word recognition score criteria are between 10% and 60%, inclusively, in the ear to be implanted in the preoperative aided condition.
- The contralateral ear’s CNC score criteria are equal to or better than that of the ear to be implanted, but not better than 80% correct.
- Moderately severe to profound mid- to high frequency hearing loss (threshold average of 2000, 3000, and 4000 Hz ≥ 60 dB HL) in the contralateral ear.