Authors: Amess, P¹; McFerran, C¹; Khan, Y²; Rabe, H¹

Source: Acta Pædiatrica, Volume 98, Number 3, March 2009 , pp. 448-453(6)

Publisher: Wiley-Blackwell

Abstract:

Aim: To assess the value of term neurological examination and cranial ultrasound in the early prediction of neurological outcome at 12 months corrected age in a cohort of very preterm infants.

Methods: A cohort of 102 preterm infants born at <32 weeks gestation or with a birth weight of <1500 g were assessed using the Hammersmith Term Neurological Examination. They underwent cranial ultrasound examinations according to local guidelines. The Hammersmith Infant Neurological Examination was performed at 12 months corrected age. Scores for the term examinations were compared with scores derived from healthy infants born at term and with scores from low-risk preterm infants at term equivalent age. Term neurological scores and cranial ultrasound findings were compared in the prediction of 12-month neurological outcome.

Results: Seventy-eight (76.5%) preterm infants had suboptimal total neurological scores at term when compared to healthy infants born at term. However, most went on to have optimal neurological scores at 12 months corrected age. When our cohort was compared with low-risk preterm infants at term equivalent age only 14 (13.7%) scored outside the normal range. Neither system of scoring predicted neurological outcome at 12 months corrected age as reliably as cranial ultrasound (sensitivity 0.83, specificity 0.87).

Conclusion: Neurological examination of preterm babies at term may be unreliable in the prediction of neurological outcome at 12 months corrected age. For early prediction of neurological outcome cranial ultrasound examination was found to be more reliable.

Keywords: Cranial ultrasound; Neurological examination; Outcome; Preterm

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1651-2227.2008.01062.x

Affiliations: 1: Department of Neonatology, Brighton and Sussex University Hospitals, Brighton, UK 2: Department of Developmental Child Health, Brighton and Hove Children and Young Peoples Trust, Brighton, UK

Publication date: 2009-03-01

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