5 CONCLUSION
Extensive sample data showed that children with IEMs might receive considerable benefit from CI. Children of IEMs detected speech sounds at various frequencies. After one year of monitorized, most of them developed pattern perception skills in a close-set mode. A transdisciplinary approach is suggested in pre-and post-implantation evaluation and follow-up. Auditory perception and language skills expectations should be different from those for CI with the normal cochlea. At least three years after CI, children with all IEMs showed varying degrees of auditory benefit. As a result, the early age of implantation is an essential parameter for CI users in IEMs. Audiological evaluation and intensive rehabilitation program are necessary.