Evaluatıon of the hearıng ın chıldren 1-4 ages of preeclamptıc mothers by using OAE, O-ABR, bera and free fıeld audıometer

Pre-eclampsia is a syndrome peculiar to pregnancy that occurs after 20th week of pregnancy with multisystem complications. Hypertension and proteinuria are the most important symptoms. The incidence varies between 5-10% in all pregnancies. It is characterised by the reduced organ perfusion depending on vasospasm and endothelial activation. Creating a series of fetal/neonatal risk factors, pre-eclampsia affects both fetus and neonate after the pregnancy.This study is realized with the aim to investigate whether or not there is congenital and progressive hearing loss in the children aged between 1 and 4 whose mothers experienced mild or severe preeclampsia in their pregnancy. Total 60 children participated in the study whose mothers had mild preeclampsia (20 children) and severe preeclampsia (20 children) and whose mothers were healthy (20 children) for the control group. After the ear-nose-throat examination, immitansmetric examination, otoacoustic emission test, automatic ABR measurement and free field audiometry were applied to the children.As a result of audiological evaluation, Type C tympanogram was observed in the right ear of one child in the group with mild preeclampsia, and in the left ears of total four children in the group with severe preeclampsia (2 children) and in the healthy group (2 children). No ipsilateral reflex was obtained in the right ears of total two children in the groups with mild (1 child) and severe (1 child) preeclampsia, and in the left ear of one child in the group with severe preeclampsia. One child in the group with mild preeclampsia did not pass from the OAE test. Normal immitansmetric findings and passed result from OAE test were obtained in the second audiological evaluation. All children passed the automatic ABR test. Hearing thresholds between 125-4000 Hz were obtained in the free field and at 30 dB.