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Seizures as a Predictor of Long-Term Neurodevelopmental Outcome in Survivors of Neonatal Extracorporeal Membrane Oxygenation (ECMO)

Department of Pediatrics, Medical College of Georgia, Augusta, GA

Chantrapa Bunyapen, MD

Department of Pediatrics, Medical College of Georgia, Augusta, GA

Morris J. Cohen, EdD

Section of Neonatology, and the Department of Neurology and Psychiatry Medical College of Georgia, Augusta, GA, mcohen{at}mail.mcg.edu

Tara Garrison, MS

Department of Pediatrics, Medical College of Georgia, Augusta, GA

Jatinder Bhatia, MBBS

Department of Pediatrics, Medical College of Georgia, Augusta, GA

A longitudinal, prospective study was conducted to determine the long-term neurodevelopmental outcome in neonatal extracorporeal membrane oxygenation (ECMO) survivors with and without seizures. One hundred sixty-two ECMO survivors from March 1985 until November 1995 were eligible for follow-up. Sixty-four returned at preschool age (4—6 years). Thirty-nine infants did not experience neonatal seizures (group 1); however, 25 exhibited seizures before or during ECMO (group 2). Twelve infants referred for ECMO, but managed medically, served as a clinical comparison group (group 3). At school age (7—9 years), 32 ECMO children (16 with seizures) returned for neuropsychologic evaluation. The results indicated that the preschool seizure group (group 2) demonstrated a significantly lower mean IQ than group 1 or 3 (P = .002). Furthermore, 56% of group 2 had IQ scores 84 ( 1 SD below the mean). Group 2 also exhibited significantly higher rates of cerebral palsy (P .001) and speech-language disorder than group 1 or 3 (P < .001). At school age, the seizure group continued to perform below average on intelligence testing, with 50% scoring 84 and 38% receiving special education. This study extends the previous findings that seizures associated with neonatal ECMO are a primary risk factor for neurodevelopmental sequelae and confirms the need for long-term follow-up to assist with academic programming. (J Child Neurol 2004;19:930—934).

Journal of Child Neurology, Vol. 19, No. 12, 930-934 (2004)
DOI: 10.1177/08830738040190120401


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