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Journal of the Korean Child Neurology Society 2000;8(1):87-93.
Published online May 30, 2000.
Correlation between the Grade of PVL on Brain MRI and Denver Development Screening Test.
Ju Eun Lee, Jae Hong Park, Sang Ook Nam, Hak Jin Kim
Abstract
PURPOSE
The periventricular leukomalacia(PVL) tends to increase the risk of developing motor neurologic sequelae, delayed cognitive development, visual impairment, and epilepsy. Although several developmental screening test methods are being used, one of the oldest and best known developmental screening test was restandardized and revised as Denver Development Screening Test II(Denver II). The objective of this study is to analyse the correlation between the degree of PVL on MRI and the results of Denver II. METHODS: Among the children brought into Pusan National University Hospital between January 1996 and August 1999 with developmental delay, all of the 36 children with PVL on MRI were selected for the study. Denver II was checked in all these patients for screening of developmental delay with the review of medical records. Depending on the grade of PVL, total sample was classified into three groups, and it was based on abnormally increased signal intensity in periventricualr white matter or a reduced amount of periventricular white matter or both, and compensatory focal ventricular enlargement. We analysed the relationship of the grade of PVL and the results of Denver II. RESULTS: The 36 total patients were composed of 22 boys and 14 girls, with the age distribution between 11 to 72 months and the mean of 34.4 months. Delayed occurrence of gross motor sector were 5 cases(44.4%) in group 1, 16 cases(80.0%) in group 2, 7 cases(100.0%) in group 3. Incidence of delay was significantly higher in the high grade PVL group. Delayed rate of other sectors(fine motor-adaptive, personal-social) were higher in the high grade PVL group. But it was not statistically significant. Delayed rate of language sector has no correlation with grade of PVL on MRI. CONCLUSION: Incidence of dealy of gross motor sector was significantly higher in the high grade PVL group. However, language sector has no correlation with grade of PVL on MRI.
Key Words: PVL, Denver II, MRI


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