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  • Title: Universal neonatal hearing screening and delayed hearing loss or late-developmental hearing loss.
    Author: Núñez Batalla FJ, Fernández-Cedrón Bermejo C, Guntín García M, Sandoval Menéndez I, Fresno Díaz E, Gómez Martínez JR, Llorente Pendás JL.
    Journal: Acta Otorrinolaringol Esp (Engl Ed); 2023; 74(5):283-289. PubMed ID: 37149133.
    Abstract:
    OBJECTIVE: To determine the percentage of children with permanent bilateral postnatal hearing loss in order to study its incidence, related risk factors, diagnosis and treatment. METHODS: Retrospective study to collect data on children diagnosed with hearing loss outside the neonatal period in the Hearing Loss Unit of the Hospital Universitario Central de Asturias, from April 2014 to April 2021. RESULTS: 52 cases met the inclusion criteria. The detection rate of congenital hearing loss in the neonatal screening programme in the same study period was 1.5 children per thousand newborns per year, adding postnatal hearing loss results in a rate of infant bilateral hearing loss of 2.7 children per thousand (55.5% and 44.4% respectively). Thirty-five children presented risk factors for hearing loss, of which 23 were at retrocochlear risk. The mean age at referral was 91.9 (18-185) months. Hearing aid fitting was indicated in 44 cases (84.6%). Cochlear implantation was indicated in eight cases (15.4%). DISCUSSION: Although congenital hearing loss accounts for the majority of childhood deafness, postnatal hearing loss has a significant incidence. This may be mainly due to: (1) that hearing impairment may arise in the first years of life, (2) that mild hearing loss as well as hearing loss in severe frequencies are undetectable by neonatal screening in some cases, (3) that some children may have false negative results. CONCLUSION: postnatal hearing loss requires identification of risk factors and long-term follow-up of children with hearing loss, as it needs to be detected and treated early.
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