The multichannel CI is a technique which allows acquisition of hearing in congenitally, prelingually deaf children, and improvement also in postlingually deaf children and adults, in a significant way when compared with patients without them. CI is indicated in patients with deep bilateral neurosensory deafness located in the cochlea, with adecuate motivation and unsuitable for any other prosthetic alternative, although maybe the criteria will be expanded in future. It is absolutely necessary to have a multi-disciplinary well integrated team and a program that permits the different phases (correct selection and follow-up of the patients, implantation, programation and rehabilitation). In the prelingually deaf children we deem that the age of implantation should be at its best at the interval of 2 and 5 years. Parents and patients should be informed of the potential benefits and risks of the technique in order to maximize rehabilitation benefits.
The preventive vaccination of all patients is recommended before treatment to reduce the number of meningitis cases. With more experience, it is hoped that the number of complications will decrease.
Costs and health quality of life from the different studies have proved the cost-utility of the CI, with a very good position in the cost-effective technologies ranking.