Abstract
Epidemiological evidence1 suggests that die aetiology of symmetrical (Sy) and asymmetrical (Asy) neuromotor impairments may differ. We have investigated 85 infants born at less than 33 weeks gestation whose brains were examined using ultrasound sector scanning in the neonatal period and then had neuromotor impairments identified at one year. In 38 infants the impairment was Sy, in 27 Asy and in 20 involved only the axis. The infants were part of a consecutive cohort of 362 infants bom in 1983-85; they comprised 90% of the 94 impaired infants in the cohort. The results were as follows:
Both the prevalence and the type of ultrasound-detected brain lesions differed among the three groups of neuromotor impairments. These findings support the epidemiological evidence of differing aetiologies for Sy and Asy impairments.
1. Powell et al. Dev Med Child Neurol 1988:30:11-18, 19-25
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Stewart, A., Edwards, A., Rotn, S. et al. 79 Ultrasound detected lesions in very preterm infants with symmetrical and asymmetrical neuromotor impairments at one year. Pediatr Res 28, 290 (1990). https://doi.org/10.1203/00006450-199009000-00103
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DOI: https://doi.org/10.1203/00006450-199009000-00103