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Value of Neurosonography in Predicting Subsequent Cognitive and Motor Development in Extremely Low Birth Weight Neonates

Journal of Perinatology volume 23, pages 629–634 (2003)Cite this article

Abstract

OBJECTIVE: To compare the results of neurosonography (NSG) with subsequent neurodevelopmental testing in extremely low birth weight (ELBW; ≤1000 g) neonates.

STUDY DESIGN: NSG at hospital discharge was available in 164 neonates and Bayley Scores of Infant Development (BSID II) evaluations (MDI and PDI) were performed in 158 of these infants at 18 to 22 months. Neurosonographic studies obtained prior to the discharge study also were evaluated. Neurosonograms were interpreted by pediatric radiologists, and BSID II examinations were performed by certified examiners masked to the results of the neurosonographic studies.

RESULTS: A normal sonographic study at discharge was observed in 44% (14/32) of neonates with MDI <70 and 29% (7/24) with PDI <70. Furthermore, the sonographic study at discharge was normal in 59% (36/61) of neonates with MDI 70 to 84 and 56% (31/55) with PDI 70 to 84. Conversely, approximately 30 to 40% of those with an abnormality noted on neurosonogram at discharge, or at any time during hospitalization, had MDI and/or PDI scores ≥85. The association between abnormal NSG at discharge and low BSID II results was stronger for the PDI exam compared with the MDI exam.

CONCLUSION: These results emphasize the limitations of NSG in predicting subsequent neurodevelopmental outcome in ELBW neonates. The primary role for NSG in ELBW neonates may be in the diagnosis and management of acute problems, such as intraventricular hemorrhage and posthemorrhagic hydrocephalus, and not as a tool to predict subsequent outcome.

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Acknowledgements

We appreciate the secretarial assistance of Marilyn Dixon in preparation of the manuscript.

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Authors and Affiliations

  1. Children's Medical Center of Dallas (J.L.L.), Dallas, TX, USA

    Judy L LeFlore NNP, PhD

  2. Department of Pediatrics (R.S.B., W.D.E), Dallas, TX, USA

    R Sue Broyles MD & William D Engle MD

  3. Department of Pediatric Radiology (M.A.D.), The University of Texas Southwestern Medical Center, Dallas, TX, USA

    Marcia A Pritchard MD

Authors
  1. Judy L LeFlore NNP, PhD
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  2. R Sue Broyles MD
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  3. Marcia A Pritchard MD
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  4. William D Engle MD
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Corresponding author

Correspondence to William D Engle MD.

Additional information

Presented in part at the Pediatric Academic Societies Meeting, May 5, 2002, Baltimore, MD, USA.

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LeFlore, J., Sue Broyles, R., Pritchard, M. et al. Value of Neurosonography in Predicting Subsequent Cognitive and Motor Development in Extremely Low Birth Weight Neonates. J Perinatol 23, 629–634 (2003). https://doi.org/10.1038/sj.jp.7211009

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