Volume 2, Chapter 01: Assessment of Early Auditory Development in Children After Cochlear Implantation


 This chapter presents information on cochlear implants (CI’s) and their use in the treatment of  childhood hearing loss. Specifically, normal auditory development in children is discussed which is critical for clinicians to understand. A rationale is provided for CI’s as a means to promote the auditory development of children with profound hearing loss. In addition, the theoretical foundations of methods for assessing auditory development using questionnaires are provided, as well as their clinical application. The role of questionnaires is important to assure valid and effective CI fitting and early intervention programs. Finally, data on CI’s suggest that early implantation with young children at 12 months of age is efficacious. Consequently, delaying this process even a short period of time, may lead to unfavorable and unnecessary outcomes.


Multimedia  Content

Readers can access a Powerpoint presentation file , showing a "Methodology for calculating the delay in Auditory development". Use arrows keys or the mouse to see the development of the presentation. The material can be accessed here .


Chapter Contributors


Anita Obrycka Ph.D., Eng. was born in 16 of May 1972 in Brzeziny, Poland. Since 1996 she is a Clinical Engineer at the Auditory Implant and Perception Department of the Institute of Physiology and Pathology of Hearing, Warsaw, Poland. She has considerable clinical and scientific experience in the field of cochlear implant systems, Teleaudiology in particular telefitting of cochlear implant systems and in elaboration and adaptation of assessment tools for self-reported benefit in cochlear implanted patients. She is a Member of the Polish Scientific Association of the Hearing and Communication Disorders and Polish Society for Pediatric Otorhinolaryngology. Awarded the Badge of Merit and the Bronze Cross of Merit by the Minister of Health in Poland.


Professor Artur Lorens Ph.D. Eng was born in 25 of October 1967 in Warsaw, Poland. Head of the Department of Auditory Implant and Perception of World hearing Center of the Institute of Physiology and Pathology of Hearing , Warsaw, Poland. Scientific experience in the field of auditory implants, psychoacoustics and auditory perception modeling. Member of the Polish Scientific Association of the Hearing and Communication Disorders Member of the American Auditory Society, International Society of Audiology, European Society for Artificial Organs, European Academy of Otology&Neurootology. Scientist in charge of the HearingTreat Marie Curie EU project (2006-2010). Main executor of five projects of the Polish State Committee for Scientific Research. He achieved First Award granted by the Minister of Health and Social Welfare for outstanding achievements in health care, including elaboration and implementation of the brainstem implants program (2000) and First Degree Award for elaboration of the first Polish version of rehabilitation program for the hearing impaired, provided with the cochlear implants (1997), granted by the Minister of Health and Social Welfare in Poland.


Prof. Henryk Skarzynski, M.D., Ph.D.,

Prof. Henryk Skarzynski, M.D., Ph.D., is a world-known otosurgeon, expert in otorhinolaryngology, audiology and phoniatrics. His innovative otosurgical methods are implemented in medical centers all over the world. First surgeon in Poland to perform cochlear implantation (1992), brainstem implantation (1998). He is the author of the program of the partial deafness treatment of patients with cochlear implants (PDT), that he implemented for the first time in the world in 2002 in an adult and in 2004 in a child. His method is considered a Polish specialty known as “Skarzynski’s method”. It has been implemented in many medical centers all over the world. For this purpose, prof. Skarzynski had developed a new type of safe electrode, which has been used in a new generation of cochlear implants. In 2003, he has introduced middle ear implants and several dozen of new clinical procedures in Poland. Prof. Skarzynski’s activity has contributed to the dynamic development of the field of hearing implants, otosurgery and audiology in Poland and in the world. He was an initiator and organizer of the second in Europe Center for Deaf and Hearing Impaired People “Cochlear Center”(est. 1993), and then of the Institute of Physiology and Pathology of Hearing (est. 1996), the International Center of Hearing and Speech (est. 2003) and the World Hearing Center. Due to the activities performed by prof. H. Skarzynski and the team of the Institute of Physiology and Pathology of Hearing during last 20 years, Poland is in the world’s lead of the countries which realize hearing screening programs in children of different ages.

 Prof. Skarzynski is the author and co-author of over 3000 research studies published in Poland and abroad, as well as over 1800 speeches delivered. He leads an extensive teaching activity for students and physicians in the country and from abroad. He is the member of most prestigious national and international scientific associations. Prof. Skarzynski has been awarded with several state honors, Award of the Prime Minister, Awards of the Minister of Health, Awards of Minister of Science and Award of Minister of Foreign Affairs, as well as numerous scientific awards and other prestigious ones awarded in the country and abroad