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Outcome After Open-Heart Surgery in Infants and Children
Geoffrey Miller, MD
Section of Child Neurology, Baylor College of Medicine, Houston, TX
Johanna R. Tesman, PhD
Division of Pediatrics
Jeanette C. Ramer, MD
Division of Pediatrics
Barry G. Baylen, MD
Division of Cardiology
John L. Myers, MD
Division of Cardiothoracic Surgery, Pennsylvania State University, Hershey, PA
We have studied the neurodevelopmental outcome of 104 consecutive unselected children who underwent open-heart surgery from 1987 through 1989. Survivors had formal neurologic and psychometric examinations after 2 years of age. Mean IQ was 90, and 78% had scores above 70. Cerebral palsy occurred in 22%. Deep hypothermia for longer than 45 minutes was associated with IQ less than 85 (P < .001) and later cerebral palsy (P = .02). Those less than 1 month old at operation had a median IQ of 96, and 25% had cerebral palsy. Median IQ for survivors of hypoplastic left heart syndrome was 66, only one had an IQ above 70, and 57% had cerebral palsy. Median IQ for transposition of great arteries was 109, only one was less than 85, and all had normal neurologic examinations. Those between 1 and 6 months of age at operation had a median IQ of 93, with 64% above 85, and 5% had cerebral palsy. Those older than 6 months had a median IQ of 99, with 70% above 85, and 13% had cerebral palsy. For infants less than 1 month old at operation, a strong association existed between outcome, type of lesion, and duration of deep hypothermia (P < .01), although not in all cases. In those older than 1 month at operation, no association existed between outcome and any study variable. Although the majority of children have an uneventful outcome after open-heart surgery, a significant morbidity exists. This is related to several factors, including type of lesion and duration of hypothermia, particularly in neonates; preoperative congenital and acquired lesions; and possible perioperative cerebrovascular events. (J Child Neurol 1996;11:49-53).
Journal of Child Neurology, Vol. 11, No. 1,
49-53 (1996)
DOI: 10.1177/088307389601100112
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