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  • Title: Cognitive development in low risk preterm infants at 3-4 years of life.
    Author: Caravale B, Tozzi C, Albino G, Vicari S.
    Journal: Arch Dis Child Fetal Neonatal Ed; 2005 Nov; 90(6):F474-9. PubMed ID: 15956096.
    Abstract:
    BACKGROUND: Major neurological handicaps and neuropsychological disturbances are more common in ex-preterm children than their counterparts born at term. OBJECTIVE: To establish in a prospective study whether a characteristic neuropsychological profile exists in ex-preterm children who do not exhibit neurodevelopmental deficits on routine clinical examination. METHODS: Thirty intellectually normal children born preterm (30-34 weeks gestation) without major neurological disabilities and a control group of term children matched for age, sex, and parental educational and occupational status were assessed at 3-4 years of age to obtain a complete neuropsychological profile. Intellectual ability, language comprehension and expression, perceptual and visual motor function, working memory, and attention and behavioural problems were investigated. RESULTS: Even in the absence of major neurological signs, children born preterm achieved lower mean scores than controls on the Stanford-Binet intelligence scale (110.8 v 121, p<0.001), visual perception test (33.8 v 42.7, p<0.001), visual motor integration test (42.6 v 47.4, p = 0.049), memory for location test (8.4 v 9.5, p = 0.007), sustained attention test (41.6 v 51.5, p = 0.009), and the picture vocabulary test (33.3 v 44.7, p = 0.021). CONCLUSIONS: Neuropsychological abnormalities can be detected early in childhood in apparently normal ex-preterm children and are consistent with a growing body of evidence that prematurity may be associated with long term neuropsychological morbidity in childhood and adolescence.
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