The program of PDT is a chance for all people, especially elderly patients, to experience greater satisfaction in daily activities and interpersonal relations. This method of treatment enables to return to the world of sounds and experience full of life satisfaction. Furthermore, elaboration of six steps by Professor Skarzynski and classification of PDT enable to compare results and experience between the various medical centers. Consequently, it encourages standardization of knowledge in the world and elaboration general procedures in otolaryngology. This is being made through the development of technique. Sustainable development of knowledge about audiology and engineering contribute to create innovative solutions and devices. Collaborate with specialist from others areas contribute to make the highest quality of service and generation the best solutions. Achievement of full patient’s satisfaction is the result of self and specialist work. Cochlear implantation is the first stage of complex process, however full of success requires active engagement and patient’s motivation during rehabilitation process.