A. Majnemer et B. Rosenblatt, Prediction of outcome at school age in neonatal intensive care unit graduates using neonatal neurologic tools, J CHILD NEU, 15(10), 2000, pp. 645-651
Prediction of outcome for neonatal intensive care unit graduates is clinica
lly useful to counsel families effectively and target those who may benefit
from early interventions. Evoked potentials have proven prognostic value o
f neurologic outcomes in early childhood; however, their long-term predicti
ve validity remains to be determined. The objective of this prospective stu
dy was to determine the long-term predictive value of three neonatal neurol
ogic assessments: brainstem auditory evoked potentials, somatosensory evoke
d potentials, and the Einstein Neonatal Neurobehavioral Assessment Scale. S
eventy-eight high-risk newborns and 28 healthy controls were recruited and
were assessed in the newborn period using these tests. At 8 to 9 years of a
ge, 42 subjects and 13 controls were re-evaluated for developmental progres
s using a range of psychologic, sensorimotor; and neurologic measures. Find
ings indicated that the somatosensory evoked potential was most accurate at
predicting outcome at school age, with high specificity (83-100%) across a
ll domains tested and good sensitivity (80-100%) for intellectual performan
ce and sensorimotor abilities. The brainstem auditory evoked potential was
limited by false-negatives, whereas the neonatal neurobehavioral assessment
yielded many false-positives. This study provides new evidence that associ
ations between neonatal somatosensory evoked potentials and developmental s
equelae continue to be significant at school age.