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  • Title: Predictive value of EEG in neonates with periventricular leukomalacia.
    Author: Vermeulen RJ, Sie LT, Jonkman EJ, Strijers RL, Lafeber HN, Uitdehaag BM, van der Knaap MS.
    Journal: Dev Med Child Neurol; 2003 Sep; 45(9):586-90. PubMed ID: 12948325.
    Abstract:
    The aim of this study was to evaluate whether EEG (i.e. positive Rolandic sharp waves) can be used to predict neurodevelopment in newborn infants with periventricular leukomalacia and compare the predictive value with that of MRI. A sequential cohort of neonates (n=45; 33 males, 12 females; mean gestational age 31.2 weeks, SD 2.7, range 27 to 37.8 weeks; mean birthweight 1592 g, SD 601 g) with periventricular hyperechogenicities on cranial ultrasound was recruited for this study. EEGs were analyzed for positive Rolandic sharp waves. Neurodevelopment was evaluated at the ages of 12 and 18 months. In the whole group the probability of a poor outcome was 24% and the probability of any impairment was 33%. If the number of positive Rolandic sharp waves was no more than 0.1 per minute, the probability of a poor outcome was reduced to 9% (95% confidence interval [95%CI] 2 to 27%) and the probability of any impairment was reduced to 13% (95%CI 4 to 32%). In all infants with more than 0.1 positive Rolandic sharp waves per minute the probability of a poor outcome was 41% (95%CI 23 to 61%) and of any impairment was 55% (95%CI 34 to 73%). In these infants MRI identified infants with a poor outcome with a sensitivity of 1.00 (95%CI 0.70 to 1.00) and a specificity of 0.92 (95%CI 0.67 to 0.99), and infants with any impairment with a sensitivity of 0.83 (95%CI 0.55 to 0.95) and a specificity of 1.00 (95%CI 0.72 to 1.00). Results suggest that if an EEG of an infant with periventricular leukomalacia contains no more than 0.1 positive Rolandic sharp waves per minute the probability of a normal or mildly delayed development is high (0.91, 95%CI 0.73 to 0.98). MRI enhances the accuracy of the outcome prediction slightly; however, owing to a wide confidence interval, this advantage is negligible. However, if the frequency of the positive Rolandic sharp waves exceeds 0.1per minute, MRI can significantly enhance the precision of the prediction of outcome.
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