期刊
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
卷 -, 期 -, 页码 -出版社
ENDOCRINE SOC
DOI: 10.1210/clinem/dgad493
关键词
growth hormone; IGF-I; acromegaly; vertebral fractures; cholecalciferol ; vitamin D
Skeletal fragility is common in acromegaly patients and can lead to vertebral fractures. This study suggests that cholecalciferol supplementation may reduce the incidence of vertebral fractures in acromegaly.
Context: Skeletal fragility is observed in 30% to 60% of acromegaly patients, representing an emerging complication of the disease that increases disability. Despite several studies having investigated the clinical and hormonal prognostic factors for the occurrence of vertebral fractures (VFs) in acromegaly, very few data are available on their prevention/treatment including the effect of vitamin D (VD) supplementation, which has been reported to have a fracture-protective effect in several studies in patients with osteoporosis.Objective: We aimed to investigate the role of cholecalciferol (D3) supplementation in the prevention of incident VFs (i-VFs) in acromegaly.Methods: A longitudinal, retrospective and multicenter study was performed on 61 acromegaly patients treated and untreated with D3 supplementation.Results: Twenty-six patients were treated with D3 supplementation according to clinical guidelines. The median D3 weekly dosage was 8500 IU (interquartile range [IQR]: 3900). The median duration of D3 supplementation was 94 months (IQR: 38). At last follow-up, i-VFs were diagnosed in 14 patients (23%). I-VFs were less prevalent in patients on D3 supplementation (14.3% of cases) compared to patients not treated with D3 (85.7%; P = .02). The final level of serum V25OH-D was significantly lower in patients who developed i-VFs (28.6 ng/mL, IQR: 4.1) compared to patients who did not develop i-VFs (34.2 ng/mL, IQR: 9.6; P = .05). The logistic regression confirmed the protective role of D3 supplementation on the occurrence of i-VFs (odds ratio: 0.16; 95% CI, 0.03-0.79; P = .01).Conclusion: It is likely that D3 supplementation could lead to a reduction in i-VFs in acromegaly.
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