Thompson CM, Puterman AS, Linley LL, Hann M, van der Elst CW, Molteno CD, Malan AF. The value of a scoring system for hypoxic ischaemic encephalopathy in predicting neurodevelopmental outcome. Acta A numeric scoring system for the assessment of hypoxic ischaemic encephalopathy during the neonatal period was tested. The value of the score in predicting neurodevelopmental outcome at 1 y of age was assessed. Forty-five infants who developed hypoxic ischaemic encephalopathy after birth were studied prospectively. In addition to the hypoxic ischaemic encephalopathy score all but two infants had at least one cranial ultrasound examination. Thirty-five infants were evaluated at 12 months of age by full neurological examination and the Griffiths Scales of Mental Development. Five infants were assessed at an earlier stage, four who died before 6 months of age and one infant who was hospitalized at the time of the 12 month assessment. Twenty-three (58%) of the infants were normal and 17 (42%) were abnormal, 16 with cerebral palsy and one with developmental delay. The hypoxic ischaemic encephalopathy score was highly predictive for outcome. The best correlation with outcome was the peak score; a peak score of 15 or higher had a positive predictive value of 92% and a negative predictive value of 82% for abnormal outcome, with a sensitivity and specificity of 71% and 96%, respectively. For the clinician working in areas where sophisticated technology is unavailable this scoring system will be useful for assessment of infants with hypoxic ischaemic encephalopathy and for prognosis of neurodevelopmental outcome. 0 Cerebral palsy, hypoxic ischaemic encephalopathy, neurodevelopment, term infants C Thompson, Neonatal Medicine, Groote Schuur Hospital, Observatory, 7925, Cape Town, RSA
Servo-controlled fan cooling with room-temperature air, combined with servo-controlled radiant warming, was an effective, simple, and safe method of inducing and maintaining rectal temperatures of 33 degrees C to 34 degrees C in sedated infants with hypoxic-ischemic encephalopathy. After induction of hypothermia, a low fan speed facilitated accurate temperature control, and warmer-controlled rewarming at 0.2 degrees C increments every 30 minutes resulted in more appropriate rewarming than when 0.5 degrees C increments every hour were used.
A prospective 2-year follow-up study of infants with birth weights of less than 1250 g was undertaken at Groote Schuur Hospital Neonatal Intensive Care Unit. For a 12-month period beginning July 1988, all live infants born at Groote Schuur Hospital or referred to the Neonatal Intensive Care Unit were included in the study cohort. The aim of the study was to document the morbidity, mortality, and neurodevelopmental outcome of these infants to 2 years of age. Of 235 liveborn infants, 143 (61%) survived to discharge. One hundred twenty-six infants were born weighing less than 1000 g; 42% survived to discharge. One hundred nine infants weighed 1000 g or more at birth, and 83% survived to discharge. Better survival was documented for infants whose mothers attended antenatal care, who weighed more than 900 g, and who were of greater than 30 weeks' gestation. Eleven infants died in the first 6 months after discharge. One hundred six infants (83% of survivors) underwent Griffiths developmental testing and clinical assessment at 1 year of age. Ninety-six (91%) of these survivors were seen and tested at 2 years of age. Of the 106 infants assessed at 1 year of age, 6 infants had cerebral palsy, 6 were globally developmentally delayed without signs of cerebral palsy, and 1 infant showed significant motor delay with a normal developmental quotient. At 2 years of age 1 additional infant had cerebral palsy and 9 more infants are likely to be mentally retarded. At 2 years of age the major handicap rate was, therefore, 22% . Sixty-nine percent of surviving infants, and all but 1 of the infants with cerebral palsy, were underweight for gestational age at birth. There was a tendency for these underweight-for-gestational-age infants to score less well at 2 years of age. Infants who received ventilation and infants with a birth weight of less than 1000 g were not found to score less well than other infants in the cohort.
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