Changes in BAER amplitudes after perinatal asphyxia during the neonatal period in term infants

Brain & Development
Ze D JiangAndrew Robert Wilkinson

Abstract

We recorded serially brainstem auditory evoked response (BAER) during the neonatal period in term infants who suffered perinatal asphyxia. The amplitudes of BAER components was analysed at 40 dB above BAER threshold of each subject who had a threshold<or=25 dB nHL. No apparent changes in the amplitudes of waves I and III during the first 5 days after birth. The two wave amplitudes were slightly reduced thereafter. On day 30, the amplitudes were slightly smaller than in normal controls. No statistical significant differences were found in the two amplitudes between the infants after asphyxia and the controls on any days studied. In contrast, wave V amplitude showed a trend of reduction during the whole neonatal period. The amplitude was reduced slightly on the first day after birth, but reduced further on day 3 (ANOVA, P<0.01). Thereafter, the reduction persisted without any significant change. On day 30, wave V amplitude remained significantly smaller than in the controls (P<0.001). Compared to the controls, V/I amplitude ratio was slightly smaller during the neonatal period, but V/III amplitude ratio was significantly smaller on most of the days studied (P<0.05-0.01). The persistent reduction of wave V amplitude suggests a sus...Continue Reading

References

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Citations

Apr 24, 2013·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Ze D JiangAndrew R Wilkinson
Dec 7, 2013·European Journal of Paediatric Neurology : EJPN : Official Journal of the European Paediatric Neurology Society·Ze D JiangCao Chen
Jan 9, 2009·European Journal of Pediatrics·Ze Dong JiangAndrew Robert Wilkinson
Mar 31, 2009·Journal of the Neurological Sciences·Ze D JiangAndrew R Wilkinson
Aug 14, 2012·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Ze D JiangAndrew R Wilkinson
Sep 9, 2010·Journal of Child Neurology·Ze D JiangAndrew R Wilkinson
Apr 7, 2018·Canadian Journal of Gastroenterology & Hepatology·Yang YeCun-Zhi Liu

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Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
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