Cochlear Implantation: Vast Unmet Need to Address Deafness Globally.
Cochlear Implantation: Vast Unmet Need to Address Deafness Globally.
复制标题
人工耳蜗植入:全球解决耳聋问题的巨大未满足需求。
DOI:
10.1097/mao.0000000000001416
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Stankovic,KonstantinaM
中科院分区:
文献类型:
--
作者:
Şahin,Mehmetİlhan;Sagers,JessicaE;Stankovic,KonstantinaM
Sensorineural hearing loss (SNHL) is the most common type of hearing loss (HL). Though novel approaches to treatment are in development, current therapies are limited to assistive devices, such as hearing aids and cochlear implants (CIs). CIs are the most successful neural prostheses of all time and facilitate functional hearing for people with severe to profound SNHL. However, less than 10% of CI candidates worldwide take advantage of this technology (1). Although conscious, early integration into Deaf culture presents a valuable opportunity for cultural and linguistic development and remains an option that should not be discounted, we provide the calculation of total CI candidates in the world, which has not been previously presented.Combining reported figures from the 10 most populous countries and extending this estimate to the world population, we calculate that 115,000 newborns worldwide experience profound HL (Fig. 1A). Infants with otologic conditions for which implantation is contraindicated, including auditory neuropathy spectrum disorder (1%) and inner ear malformations (1%) can be subtracted from this total, leaving 112,700 CI candidates born each year. Twenty-five percent of the world population is younger than 15 years old, and 0.2% of children (3.6 million) experience profound HL (2). At this age, the most salient contraindication for cochlear implantation is mental retardation, including autism spectrum disorder, which affects 2 to 7% of children (3, 4). Various other prohibitive disabilities affect 23% of children with profound HL (3). Thus, after conservative elimination of 30% of children with profound HL, 2.5 million children in the world remain CI candidates. Globally, 0.2 to 0.4% of adults suffer from profound HL (2). 75% of the population is over 15 years old, and 60%(9.9 million) of these people have experienced adult-onset HL due to factors like noise exposure and presbycusis (5). Most of these individuals are eligible for implantation. Additionally, people over 65 years old make up 7.4% of the world population, of whom 0.9% suffer from profound HL (6). If we eliminate 15% of elderly people from the pool of adult CI candidates to account for the prevalence of Alzheimer’s disease (11%) and non-Alzheimer’s related dementia (3%)(7, 8), we assume that approximately 9.2 million adults remain eligible for implantation.