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  • Title: Functional outcome at school age of preterm-born children treated with high-dose dexamethasone.
    Author: Hitzert MM, Van Braeckel KN, de Bok M, Maathuis CG, Roze E, Bos AF.
    Journal: Early Hum Dev; 2014 May; 90(5):253-8. PubMed ID: 24602475.
    Abstract:
    BACKGROUND: Postnatal dexamethasone (DXM) treatment is associated with adverse motor outcome. It is largely unknown as to what extent functional outcome at school age is affected. AIMS: Our first aim was to determine motor, cognitive, and behavioural outcome at school age of preterm-born children treated with high-dose DXM for pulmonary problems. Our second aim was to identify DXM-related risk factors for adverse outcome. STUDY DESIGN: In this cohort study, we included 53 very preterm-born children treated with DXM (starting dose 0.5mg/kg/d) after the first week of life. At the median age of 9 years, we performed a detailed neuropsychological assessment. RESULTS: Compared to the norm population, DXM-treated children scored worse on the Movement-ABC (abnormal fine motor, ball skills and balance: 59%, 47% and 30%, respectively). They more often had total (36%), verbal (32%) and performance IQs (55%) below 85 (P<.001, P=.002, P<.001, respectively). On each of the remaining measures, DXM-treated children scored worse than the norm population, except for verbal long-term memory and verbal recognition memory. DXM-related risk factors were associated with poorer performance. CONCLUSIONS: At school age, multiple domains of functional outcome were affected in DXM-treated children. Risk factors related to the use of DXM should be considered as serious potentiaters of adverse outcome in children treated with high-dose DXM.
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