fa بررسی شنوایی‌سنجی (ABR) نوزادان ترم سالم بستری با بیلی‌روبین بالای در حد تعویض خون مقاله پژوهشی Original Research Article <p style="text-align: justify;"><strong><em>Background and Objective:</em></strong> Hyperbilirubinemia is a common neonatal abnormality. Severe hyperbilirubinemia is a risk factor for auditory system injury. Auditory brainstem responses (ABR) are important in early diagnosis of hearing impairments in healthy term infants with elevated bilirubin levels requiring exchange transfusion.<br> <strong><em>Materials and Methods:</em></strong> During a two- year- period (2007 &ndash; 2009), in a prospective descriptive analytical study, in Tehran Milad Hospital, 64 (32 female, 32 male), healthy term (> 37 weeks) infants, who required treatment or were treated with phototherapy or received exchange transfusion for elevated bilirubin levels or jaundice, were studied. After obtaining a written consent from their parents, the infants were tested with auditory brain responses and results were analyzed using SPSS 16 software.<br> <strong><em>Results: </em></strong>No significant correlation was found between ABR and age, weight, bilirubin level or ABO blood group. Nineteen out of 64 infants received exchange transfusion. Three out of 19 infants (16%) exhibited abnormal ABR and 16 infants (84%) had normal ABR. There was no significant correlation between exchange transfusions and ABR (P>0.05). &nbsp;<br> <strong><em>Conclusion: </em></strong>The results pointed out that 14% of the infants with elevated bilirubin who required exchange transfusion had abnormal ABR. This indicates that elevated bilirubin levels even without inducing kernicterus should be considered as risk factors for hearing impairments. Further studies are needed on how long these tests may remain abnormal.</p> Hearing Loss, Exchange transfusion, Auditory brainstem response, Oto-acoustic emission (OAE) 77 83 http://journal.zums.ac.ir/browse.php?a_code=A-10-4-582&slc_lang=fa&sid=1 Saeid Nabavi سعید نبوی nabavi.saeed@gmail.com 5200319475328460060161 5200319475328460060161 Yes Dept. of Pediatric, Islamic Azad University, Tehran Medical Branch, Tehran, Iran متخصص اطفال، استادیار دانشکده پزشکی دانشگاه آزاد اسلامی واحد تهران Mohammad Hossein Behzad Moghadam محمدحسین بهزادمقدم 5200319475328460060162 5200319475328460060162 No Dept. of Pediatric, Islamic Azad University, Tehran Medical Branch, Tehran, Iran فوق تخصص نوزادان، دانشیار دانشگاه علوم پزشکی تهران Mohammad Hossein Arab Hosseini محمدحسین عرب حسینی 5200319475328460060163 5200319475328460060163 No Dept. of Neonatology, Tehran University of Medical Sciences, Tehran, Iran کارشناس بهداشت محیط، دانشگاه آزاد اسلامی واحد تهران Mahnaz Vaezi مهناز واعظی 5200319475328460060164 5200319475328460060164 No Islamic Azad University, Tehran, Iran کارشناس شنوایی سنجی، دانشگاه علوم پزشکی تهران Reza Rajabi رضا رجبی 5200319475328460060165 5200319475328460060165 No Dept. of Audiology, Tehran University of Medical Sciences, Tehran, Iran