By Omama Fahad Sabbagh, student of the Master in Clinical Audiology and Hearing Therapy

Abstract

Cochlear implants (CIs) are a transformative intervention for individuals with severe to profound hearing loss, offering significant improvements in auditory function and quality of life. This systematic review conducted following the PRISMA guidelines, examines recent advancements in CI outcomes, focusing on their impact on speech perception, quality of life, hearing preservation, and long term stability. A comprehensive search of peer-reviewed studies was conducted using databases like PubMed, Scopus, and Google Scholar, with a focus on clinical trials, comparative studies, and systematic reviews. The findings highlight consistent improvements in speech perception across diverse listening environments, particularly for individuals with high-frequency hearing loss. Key factors influencing CI outcomes include the duration of deafness, age at implantation, and cognitive function. Technological innovations, such as enhanced electrode arrays and refined surgical techniques, have contributed to improved hearing preservation and stable long-term auditory performance. Furthermore, CIs have been shown to enhance quality of life, especially in older adults, by fostering better communication and reducing social isolation. Future research should focus on the long-term cognitive effects of CIs and demographic-specific impacts to further optimize auditory rehabilitation outcomes.

Keywords: Cochlear implants, High-frequency Hearing loss, Hearing aids, Speech perception, Hearing preservation, Quality of life

Download the full Research Work: Sabbagh, O. F. (2024). The Efficacy and Evolution of Cochlear Implants: A Systematic Review of Speech Perception, Quality of Life, Hearing Preservation, and Technological Advancements.SAERA