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Somatosensory Evoked Potential of Median Nerve in Preterm Infants

Journal of the Korean Pediatric Society 1997;40(6):801-808.
Published online June 15, 1997.
Somatosensory Evoked Potential of Median Nerve in Preterm Infants
Young Hwan Kim, Kee Hwan Yoo, Young Sook Hong
Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
미숙아에서 정중신경의 체성감각 유발 전위에 관한 연구
김영환, 유기환, 홍영숙
고려대학교 의과대학 소아과학교실
Abstract
Purpose
: The purpose of this study was to standardize the somatosensory evoked potential(SEP) latency and amplitude of healthy preterm infants according to the postconceptional age.
Methods
: The median nerve SEPs were recorded in 30 healthy preterm infants who were followed up until 6 months and were neurodevelopmentally normal.
Results
: The mean peak latency and interpeak amplitude were following : P0=20.89±6.09(msec), N1=26.32±5.18, P1=31.16±6.59, N2=36.52±7.22 : P0N1=1.07±0.72(μV), N1P1= 1.56±0.93, P1N2=1.56±1.73. The N1 peak latency was inversely related to postconceptional age. (P=0.036) : below 36 weeks=29.44±3.18(msec), from 36 weeks to 37+6 weeks=27.72±5.47, from 38 weeks to 39+6 weeks=25.20±5.86, above 40 weeks=22.70±2.09.
Conclusion
: This study demonstrates normal ranges of SEP of median nerve in preterm infants as a basic data of neurodevelopmental prognostic assessment.
Key Words: Somatosensery evoked potential(SEP), Preterm infants


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