1. Severe-to-profound hearing loss is determined by a pure-tone average (PTA) superior or equal (≥) to 70 dB HL at 500, 1000 and 2000 Hz. Limited benefit from amplification is defined by scores of 50% or less on Hearing in Noise Test (HINT) sentences in quiet or noise, in the best-aided listening condition. Unless already appropriately fitted with hearing aids, it is recommended that candidates undergo a hearing aid trial period of three (3) months.
2. Not all hearing loss patients are candidates for a cochlear implant. All surgical procedures include an element of risk, and it is impossible to guarantee success. Outcomes may vary. Results from case studies may not be predictive of results in other cases.