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Prediction of Outcome at School Age in Neonatal Intensive Care Unit Graduates Using Neonatal Neurologic Tools

School of Physical and Occupational Therapy, Departments of Neurology and Neurosurgery and Pediatrics, McGill University-Montreal Children's Hospital, Montreal, PQ, Canada, amajne{at}po-box.mcgill.ca

Bernard Rosenblatt, MD, CM, FRCPC

School of Physical and Occupational Therapy, Departments of Neurology and Neurosurgery and Pediatrics, McGill University-Montreal Children's Hospital, Montreal, PQ, Canada

Prediction of outcome for neonatal intensive care unit graduates is clinically useful to counsel families effectively and target those who may benefit from early interventions. Evoked potentials have proven prognostic value of neurologic outcomes in early childhood; however, their long-term predictive validity remains to be determined. The objective of this prospective study was to determine the long-term predictive value of three neonatal neurologic assessments: brainstem auditory evoked potentials, somatosensory evoked potentials, and the Einstein Neonatal Neurobehavioral Assessment Scale. Seventy-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 age, 42 subjects and 13 controls were re-evaluated for developmental progress using a range of psychologic, sensorimotor, and neurologic measures. Findings indicated that the somatosensory evoked potential was most accurate at predicting outcome at school age, with high specificity (83-100%) across all domains tested and good sensitivity (80-100%) for intellectual performance 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 associations between neonatal somatosensory evoked potentials and developmental sequelae continue to be significant at school age. (J Child Neurol 2000;15:645-651).

Journal of Child Neurology, Vol. 15, No. 10, 645-651 (2000)
DOI: 10.1177/088307380001501002


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