J Korean Pediatr Soc.  1997 Jun;40(6):801-808.

Somatosensory Evoked Potential of Median Nerve in Preterm Infants

• Kim YH
• Yoo KH
• Hong YS

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 (microvolt), N1P1= 1.56+/-0.93, P1N2=1.56+/-1.73. The N1 peak latency was inversely related to post- conceptional 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.

Keyword

Somatosensery evoked potential (SEP); Preterm infants

MeSH Terms

Evoked Potentials, Somatosensory*
Humans
Infant, Newborn
Infant, Premature*
Median Nerve*
Reference Values