Romanian Society of Pharmaceutical Sciences

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25(OH) VITAMIN D DEFICIENCY IN CYSTIC FIBROSIS CHILDREN – A PROSPECTIVE STUDY ON PREVALENCE AND TREATMENT OUTCOME

IUSTINA VIOLETA STAN 1,2#, ANCA BĂLĂNESCU 1,2, IOANA FLORENTINA CODREANU 1,2*, ALINA ANGELICA BELIVACA 1,2, MIRELA ELENA RITIVOIU 1,2#, MARIANA MĂDĂLINA DRĂGOI 2, SILVIU ADRIAN MARINESCU 1,3#, CHANER ALI 2, VALENTINA DANIELA COMĂNICI 1,2

1.“Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari Boulevard, Bucharest, Romania
2.“Alessandrescu-Rusescu” Mother and Child’s Health National Institute, 120 Lacul Tei Boulevard, Bucharest, Romania
3.“Bagdasar-Arseni” Emergency Clinical Hospital, Department of Plastic and Reconstructive Surgery, 12 Berceni Road, Bucharest, Romania

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Cystic fibrosis (CF) patients have a high risk of vitamin D deficiency due to malabsorption. The aim of the study was to evaluate the prevalence of 25(OH) vitamin D deficiency in a paediatric CF cohort and the outcome of vitamin D3 treatment. We conducted a prospective “before-after” cohort study on 65 children diagnosed with CF. Patient assessment included anthropometric measurements, pulmonary function tests and serum vitamin D level assessment at visit one and 6 months later at visit 2 for patients with vitamin D deficiency. A serum level below 74 nmol/L was considered vitamin D deficiency. The study revealed a high prevalence of vitamin D3 deficiency (61.6%) in CF patients. Treatment with high doses of vitamin D3 had a good therapeutic response with statistically significant changes of serum levels of 25(OH) vitamin D, but not with the expected efficiency.