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Journal of the Korean Academy of Rehabilitation Medicine 1999;23(3):544-558.
Predictive Value of Multi-Sensory Evoked Potentials on Motor Development of Neonates.
Kim, Sei Joo , Lee, Eun Ha , Song, Eun Beom , Lee, Sang Heon , Cho, Young Jin , Lee, Myung Heun
1Department of Rehabilitation Medicine, Korea University College of Medicine.
2Samyook Rehabilitation Hospital.
신생아 다성감각 뇌유발전위 검사의 운동발달 예후에 관한 유용성
김세주, 이은하, 송은범, 이상헌, 조영진1, 이명흔1
고려대학교 의과대학 재활의학교실, 1삼육재활원
Abstract

Objective
This study was performed to investigate the prognostic value of multi-sensory evoked potentials (MSEPs) in neonatal period for the early diagnosis of delayed motor development, especially cerebral palsy.


Method
The MSEPs studies composed of auditory brainstem evoked potentials (AEPs), visual evoked potentials (VEPs) and somatosensory evoked potentials were taken on 237 neonates, 136 boys and 101 girls, using Viking IV machine. Follow up MSEPs were repeated in every 4 or more weeks for those who showed abnormal responses in any of the MSEPs. Each neonate was also evaluated for motor development as an outpatient or by telephone interview.


Results
Among 237 neonates, 6.4% showed delayed development, and 4.6% were cerebral palsy: 3.8%, spastic type; 0.8%, athetoid type, and the others revealed normal motor development. AEP was useful method to predict motor development when this was done at 39.7⁑0.4 weeks of postmenstrual age (PMA). VEPs failed to show the validity, but there was the typical waveform change in accordance with increase of the postmenstrual age. Median nerve SEPs were valuable for prediction of motor development which were taken at PMA 40.7⁑0.6 weeks. After 45.3⁑1.5 weeks of PMA, median nerve SEPs did not reflect motor development outcome significantly. However, posterior tibial SEPs significantly reflect motor outcome regardless of the time of examination.


Conclusion
Median and posterior tibial SEPs done before 40weeks of PMA are useful tool to predict motor development outcome. When any of these tests showed abnormal findings, follow up study is recommended and posterior tibial SEP study is thought to be the most useful for its predictability. It is necessary to correlate the AEPs and VEPs with hearing and vision whenever abnormal findings are found.

Key Words: Multi-sensory evoked potentials, Neonates, Auditory evoked potential, Visual evoked potential, Somatosensory evoked potential


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