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  • Title: [Vitamin D deficiency in children admitted to the paediatric intensive care unit].
    Author: Bustos B R, Rodríguez-Nuñez I, Peña Zavala R, Soto Germani G.
    Journal: Rev Chil Pediatr; 2016; 87(6):480-486. PubMed ID: 27381433.
    Abstract:
    INTRODUCTION: Vitamin D is essential for bone health, as well as for cardiovascular and immune function. In critically ill adults vitamin D deficiency (VDD) is common, and is associated with sepsis and higher critical illness severity. OBJECTIVES: To establish the prevalence of VDD and its association with clinically relevant outcomes in children admitted to a Paediatric Intensive Care Unit (PICU) in Concepcion, Chile. PATIENTS AND METHOD: Prospective observational cohort study in 90 consecutive children admitted to the PICU in a university general hospital. Blood was collected on admission to PICU and analysed for 25-OH-D levels. Severity of illness and vasopressor use were assessed using PRISM, PELOD, and vasoactive-inotropic score (VIS) score. VDD was defined as a serum 25-OH-D level<20ng/ml. Relative risks (RR) were calculated to determine the association between VDD and relevant clinical outcomes. RESULTS: Mean (SD) serum vitamin D (25-OH-D) level in the cohort was 22.8 (1.0)ng/ml. The prevalence of VDD was 43.3%. VDD was associated with vasopressors use (RR1.6; 95%CI: 1.2-2.3; P<.01), mechanical ventilation (RR2.2; 95%CI: 1.2-3.9, P<.01), septic shock (RR1.9; 95%CI: 1.3-2.9, P<.001), and fluid bolus>40ml/kg in the first 24h of admission (RR 1.5; 95%CI: 1.1-2.1, P<.05). CONCLUSIONS: In this study, VDD at PICU admission was prevalent in critically ill children and was associated with adverse clinical outcomes. Further studies are needed to assess the potential benefit of optimizing vitamin D status in the PICU.
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