Abstract:
BACKGROUND:High-dose dexamethasone (DXM) treatment of preterms at risk of bronchopulmonary dysplasia leads to a deterioration in quality of their general movements (GMs). It is unknown whether low-dose DXM affects GM quality similarly. OBJECTIVES:To assess the effect of low-dose DXM treatment on the quality of GMs and fidgety GMs (FMs). METHODS:A prospective study of preterms admitted to our NICU between 2010 and 2012, and treated with DXM (starting dose 0.25 mg/kg/day). We assessed GM/FM quality and calculated their motor optimality score (MOS) before, during, and after treatment up to 3 months postterm. Neurological follow-up was performed between 12 and 36 months. We related risk factors with infants' GM trajectories and MOSs. At 3 months we compared the MOSs of low-dose DXM infants and a historical cohort of infants treated with high-dose DXM or hydrocortisone. RESULTS:17 infants were included. GM/FM quality improved in 9 out of 13 initially abnormal infants (p = 0.004). Shorter periods of mechanical ventilation and higher birth weights were associated with better GM trajectories (p = 0.032 and p = 0.042, respectively). Infants starting treatment later had higher MOSs on day 7 (p = 0.047). Low-dose DXM infants had higher MOSs than high-dose DXM infants (β = -0.535; 95% CI -0.594 to -0.132; p = 0.003). Out of 17 infants, 2 died, 14 developed normally, and 1 developed with mild neurodevelopmental impairments. Infants whose GMs/FMs remained normal or improved had better outcomes than infants whose GMs/FMs remained abnormal (p = 0.019). CONCLUSIONS:Out of the 17 infants treated with low-dose DXM, 2 died. Of the surviving infants, neurological functioning improved with the majority having normal neurodevelopment at the age of 12-36 months.
journal_name
Neonatologyjournal_title
Neonatologyauthors
Hitzert MM,Roescher AM,Bos AFdoi
10.1159/000362919subject
Has Abstractpub_date
2014-01-01 00:00:00pages
222-8issue
3eissn
1661-7800issn
1661-7819pii
000362919journal_volume
106pub_type
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