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  • Title: Inhaled glucocorticoids are associated with vertebral fractures in COPD patients.
    Author: Gonçalves PA, Dos Santos Neves R, Neto LV, Madeira M, Guimarães FS, Mendonça LMC, Lopes AJ, Farias MLF.
    Journal: J Bone Miner Metab; 2018 Jul; 36(4):454-461. PubMed ID: 28766137.
    Abstract:
    Chronic obstructive pulmonary disease (COPD) is an independent risk factor for osteoporosis. Oral glucocorticoids are deleterious to bone; however, the impact of inhaled glucocorticoids (ICS) remains unclear. Our objective was to determine whether ICS contribute to osteoporosis and fragility fractures. Sixty-one COPD patients, 35 current users of ICS and 26 who had never received glucocorticoids, were evaluated for bone mineral density (BMD) and body composition and underwent vertebral fracture assessment (VFA). The risk factors for bone disease considered for analysis were age, gender, ICS use, body mass index (BMI), muscle mass index (MMI), and the Global Initiative for Chronic Obstructive Lung Disease (GOLD) category. The Fracture Risk Assessment Tool (FRAX) calculation tool for the Brazilian population was also employed. The groups did not differ regarding gender, BMI, MMI, GOLD class, lowest values of the BMD T-score and Z-score, prevalence of osteoporosis, or low BMD for age. Vertebral fractures were identified via VFA in seven patients using ICS and in none of those not receiving glucocorticoids (p = 0.02). There was a trend for an association between MMI and osteoporosis (p = 0.05) and for a progressive decrease in the BMD Z-score according to the COPD severity assessed via the GOLD score (p = 0.08). Vertebral fractures were not associated with osteoporosis (p = 0.69) or low MMI (p = 0.12). The fracture risk was not estimated by FRAX. ICS may lead to bone fragility before a significant decrease in BMD. Low muscle mass and COPD severity may contribute to bone disease.
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