![]() ![]() ![]() Early diagnosis and intervention are required.Ĭopyright © 2012 IMSS. Association with other neurological morbidities was frequent. Auditory neuropathy is a type of hearing loss that constitutes a change in the conduct of the auditory stimulus by the involvement of inner hair cells or auditory nerve synapses. In the SNHL group, three patients had periventricular leukomalacia, two had hydrocephalus, and one patient had cerebral palsy.įrequency of SNHL in children with birthweights <750 g was higher than in other premature infants and was related with mechanical ventilation, furosemide application, and bronchopulmonary dysplasia. Variables reflecting differences between groups included days under mechanical ventilation, furosemide treatment, and bronchopulmonary dysplasia. About 50 percent of those with auditory neuropathy have spent time there. Notably, infants who spend a lot of time in the neonatal intensive care unit (NICU) are more frequently affected by ANSD, he added. Mean weight for this sample was 673 ± 68 g and gestational age 27.5 ± 2 weeks. Auditory neuropathy spectrum disorder can be inherited or acquired, Dr. Currently, no global hearing impairment assessment has been determined, and the physiopathology is not well known. Hearing loss with AN can range from normal hearing sensitivity to profound hearing loss. ![]() Other symptoms can be associated to the condition, such as hearing loss. Auditory neuropathy ( AN) is a hearing disorder in which the outer hair cells of the cochlea are present and functional, but sound information is not transmitted sufficiently by the auditory nerve to the brain. We were unable to identify AN in the sample. Background: The most common inherited peripheral neuropathy is Charcot-Marie-Tooth disease (CMT), with a prevalence of 1/2500. Six children (6.4%) had SNHL and 87 had NBH. Neonatal variables and procedures were compared between children with SNHL and children with normal bilateral hearing (NBH).Ī total of 93 children with a mean age of 4 years were included in the follow-up. We performed brainstem auditory-evoked potentials (BAEP), evoked otoacoustic emissions (EOAE) and free-field audiometry (FFA) in this population. Some kids have hearing loss due to auditory neuropathy spectrum disorder (ANSD), a problem in the transmission of sound from the inner ear to the brain. Inclusion criteria were birthweight <750 g and born between the years 20. The aim of the study was to determine the frequency and risk factors associated with SNHL, AN, and neurological morbidity in a group of children with birthweights of <750 g treated at a neonatal care unit and recruited into a long-term follow-up program.Ī case-control study was carried out. The current literature considers a birthweight 25 decibels), auditory neuropathy (AN), and several neurological sequelae. ![]()
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