Analiza czynników majÄ cych wpływ na nieprawidłowy wynik emisji otoakustycznej u niemowlÄ t

IntroductionOtoacoustic emissions are routine diagnostics in hearing examination of newborns. Lack of right responses in DPOAE is an indication to father diagnostic procedures to know the reason and institute treatment.AimThe aim of this paper is analysis of hearing impairment factors in children which are treated in the audiological out-patients ward.Material and methodsWe analyzed retrospectively 168 consecutive children in which diagnostic of hearing apparatus was perform in the first year of life. Children were divided into three groups: with bilateral lack of otoacoustic emissions in newborn ward, with unilateral lack of otoacoustic emissions in newborn ward and with right responses in otoacoustic emissions but with presence of risk factors of hearing impairment in history.ResultsIn 36 cases results of screening otoacoustic emissions was wrong. Unilateral disturbance of this examination was observed in 24 cases and bilateral in 12 cases. 132 children have right responses in otoacoustic emissions but risk factors of hearing impairment were present.Conclusions1.Immaturity, low birthweight and therapy in intensive care ward are important reasons of disturbance in otoacoustic emissions.2.Administration of ototoxic medications in pregnancy is the most common risk factor of hearing impairment in children.