Caracterização da triagem auditiva neonatal da Clínica Limiar em Porto Velho - Rondônia

Abstract

Wi th the universal hearing screening we can prevent auditory disorders in children. Aim:To characterize the program of neonatal auditory screening into a population of neonates.Materials and Methods: longitudinal cohort study. We surveyed the clinic's database on neonatal auditory screening in the city of Porto Velho, Rondônia.Results: Among the 6,889 newborns in the database, 5,700 (82.7%) passed and 1,189 (17.3%) failed the first screening. Of the group which failed 900 (75.7 %) returned for retesting. Among these, 15 (0.22 %) newborns had hearing loss confirmed. The most prevalent was neural hearing loss with 46.7% confirmed cases; they had hyperbilirubinemia as the most prevalent risk factor.Conclusion: hyperbilirubinemia was the most prevalent risk factor found in the group of hearing impaired children. The prevalence of hearing loss was of 2 in 1,000 newborns. It is important to highlight the relevant association between neural hearing loss caused by hyperbilirubinemia and sensorineural hearing loss of unknown causes. Braz J Otorhinolaryngol. 2010;76(5):605-10. ORIGINAL ARTICLE

Prevalence of hearing loss in newborns of mothers who had malaria and were treated with antimalaric drugs in pregnancy

“…A close relationship between hearing impairment and use of ototoxic medication has been reported for newborns 30,43,44 . The prevalence of hearing loss obtained in this study was more than evident in research conducted at the same hospital 5 , and the value obtained could have been higher, since two newborns did not undergo the audiological diagnosis. The chance of these newborns have hearing loss is high, since the NHS was performed with use of combined technical (OAE and AABR), which reduces the chance of false positives.…”

“…Hyperbilirubinemia is one of the risk factors for neonatal deafness and for the development of encephalopathies 39 , since high levels of bilirubin can damage the auditory system at the peripheral level by altering cochlear hair cells and at the central level in the cochlear, olivary and inferior olivary nuclei 41 . Other studies have demonstrated a close relationship between hearing impairment and hyperbilirubinemia 5,39,40 . In addition to blood transfusion, the infant was exposed to ototoxic medication (gentamicin) which can cause different degrees of damage, with cochlear hair cells damage being typical 42 .…”

“…Furthermore, hearing is essential for interpersonal relationships and relationships with the environment 2 . Therefore, hearing impairment during the first years of life of a child can interfere with the acquisition and development of speech and language [3][4][5] . Hearing impairment is considered to be highly disabling due to its consequences on human communication, as well as its impact on cognitive and psychosocial development and the development of oral and written language 6 .…”

“…Any type of hearing loss can compromise language, learning, cognitive development and social inclusion of the child 7 , and it is therefore important that hearing impairment is detected as early as possible. Newborn hearing screening (NHS) continues to be the only strategy able to detect early hearing alterations that could interfere with the quality of life of an individual 5,8 . The occurrence of malaria during pregnancy, particularly in the last trimester, can be determinant for infant health, with implications for fetal or neonatal development.…”

Índice de Vulnerabilidade à Saúde e triagem auditiva neonatal: diferenciais intraurbanos

“…Prevalence of hearing loss in newborns is high, ranging from 1.2 to 2.9:1000 (3)(4)(5)(6) , reaching 9.8:1000 in children with Risk Indicators for Hearing Loss (RIHL) (6) . Newborn Hearing Screening Programs (NHSP) should assess the entire population of live births within their coverage areas in order to enable positive impact on the health condition of children with hearing impairment (7,8) .…”