Auditory Brainstem Evoked Potentials in Preterm Infants. |
Kim, Sei Joo , Yang, Jung Hoon , Song, Eun Beom , Lee, Eun Ha , Lee, Sang Heon , Na, Jin Kyung , Park, Yoon Hyung |
Department of Rehabilitation Medicine, Korea University College of Medicine. |
미숙아의 청각뇌유발전위 |
김세주, 양정훈, 송은범, 이은하, 이상헌, 나진경, 박윤형 |
고려대학교 의과대학 재활의학교실 |
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Abstract |
Objective To investigate the change of peak latency, interpeak latency and amplitude of auditory brainstem evoked potentials (AEPs) in normal preterm infants in accordance with the age, and to find out the correlation between reproducibility of AEPs and high risk of premature infants. Method AEP studies were performed on 266 premature infants (male 143, female 123) within a month of the birth. Acquired potentials were grouped by the reproducibility of waveforms, and latency, interpeak latency and amplitude were measured in each group of potentials to interpret age appropriate changes of AEPs. Results 1) Peak latency of peak I, III and V were shortened in accordance with the age, especially latency of peak V was significantly decreased from 7.42 msec to 6.84 msec. 2) There was no significant change in interpeak latency or amplitude of AEPs according to the postmenstrual age. 3) Reproducibility of AEPs was worse in premature infants with history of asphyxia. Conclusion Considering the results, the latency of peak V can be used as one of the useful parameter to investigate and follow up the premature infants. Significant negative correlation between low grade reproducibility and history of neonatal asphyxia was found. |
Key Words:
Auditory brainstem evoked potentials (AEPs), Peak latency, Interpeak latency, Preterm infants |
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