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  • Title: Periventricular echodensities detected by cranial ultrasonography: usefulness in predicting neurodevelopmental outcome in low-birth-weight, preterm infants.
    Author: Bennett FC, Silver G, Leung EJ, Mack LA.
    Journal: Pediatrics; 1990 Mar; 85(3 Pt 2):400-4. PubMed ID: 2406694.
    Abstract:
    Forty-eight low-birth-weight, preterm graduates of the University of Washington's neonatal intensive care unit who had received periodic, serial scanning by means of cranial ultrasonography during the first 4 to 6 weeks of life were longitudinally observed in an interdisciplinary neurodevelopmental follow-up program to a mean corrected age of 18 months. Mean birth weight for the sample was 1286 g; mean gestational age was 29 weeks. Periventricular echodensities were graded from 0 to 3, with 0 indicating no densities and 3 indicating cystic formation. Intracranial hemorrhage was graded in the conventional manner from 0 to IV. Neurodevelopmental outcome was assessed by means of a neurologic examination and the Bayley Scales of Infant Development. To synthesize the results, neurodevelopmental outcome for each subject was classified as normal, demonstrating minor abnormalities, or demonstrating major abnormalities. Multiple statistical analyses with various subgroupings of subjects consistently indicated severe intracranial hemorrhage (grades III and/or IV) to be a better predictor of overall neurodevelopmental outcome than grade of periventricular echodensity, including small cysts. These results suggest a wide range of outcomes after detection of periventricular echodensities and caution against communicating overly pessimistic prognoses in many cases.
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