Prevalence of Late Sensorineural Hearing Loss in Children with History of Sever Hyperbillirubinemia

Abstract

Background and Objectives: Sever neonatal hyperbilirubinemia, is a major risk factor for auditory neuropathy and hearing lost. Here we studied the prevalence of hearing loss in a group of child who had a history of hyperbilirubinemia. Materials and Methods: In this study, we evaluated the rate and severity of hearing lost in a group of children who had a history of severs neonatal Hyperbilirubinemia. The results were compared with a matched group of healthy neonates, without a history of neonatal Hyperbilirubinemia. Levels of hearing lost were evaluated with Auditory Brain stem Response (ABR). Results: In this study we entered 102 child (M/F=58/44, mean age=24.5±8.9 months) with history of Hyperbilirubinemia (35.30 ± 5.02 mg/dl). Our control group consisted of 100 healthy child (M/F=61/39, mean age=23.6±8.61 months). Abnormal brain auditory response was detected in 23 patients in case group. It was mild, moderate and sever in seven (%6.9), 8 (%7.8) and 8 (7.8%) child succeedingly. Non of individuals in control group had abnormal ABR result and hearing lost. Conclusion: It is recommended to evaluate hearing state in child with history of neonatal hyperbilirubinemia.