High prevalence and early complication of symptomatic vertebral fracture in elderly people treated with high-dose glucocorticoids.

Department of Clinical Cell Biology, Chiba University Graduate School of Medicine, Chiba, Japan.
Journal of the American Geriatrics Society (Impact Factor: 4.22). 02/2009; 57(1):188-9. DOI: 10.1111/j.1532-5415.2009.02077.x
Source: PubMed
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    ABSTRACT: Vertebral fracture (VF) and osteonecrosis of the femoral head (OFH) are serious concerns in patients with rheumatic diseases treated with high-dose glucocorticoids (GCs). We comparatively examined the risk factors of VF and OFH in patients who had recently received high-dose GC therapy. Patients with rheumatic diseases receiving GCs (> or =0.5 mg/kg/day for prednisolone equivalent) within the past 2 months were enrolled in this study, and treated with 200 mg/day of etidronate cyclically. The bone mineral density (BMD) of the lumbar spine (L2-4) was examined by QDR2000. OFH was evaluated by magnetic resonance imaging (MRI). [ identifier: NCT00679978]. Forty-four patients completed the 2-year study including annual X-rays and the BMD analysis. MRI evaluation at entry and 2 years was performed in 41 patients. The BMD values with anteroposterior (AP) and lateral views decreased by 6.4% and 9.7%, respectively, in the first year, but were stable in the second year. Eleven patients developed VF and 9 patients developed OFH. The risk factors for VF included previous VF and a low BMD value (T score<-1.5) of AP view at baseline with an odds ratio (OR) of 14.9 (95%CI 2.9-76.4), while the risk factor for OFH was a recent maximum GC dosage (>1.2 mg/kg/day versus< or =; OR=7.7, 95%CI 1.3-45.5) and a decrease in BMD value of lateral view (>15% versus< or =; OR=6.7, 95% CI 1.2-36.1) in the first year. The development of VF relies on the predisposing factors, while that of OFH depends on the response to high-dose GC therapy.
    Internal Medicine 01/2009; 48(22):1931-8. DOI:10.2169/internalmedicine.48.2414 · 0.97 Impact Factor
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    ABSTRACT: Collagen vascular diseases requiring treatment with high-dose glucocorticoids are frequently complicated by vertebral fracture. We investigated the incidence of symptomatic vertebral fractures for 20 yr among patients who were treated with high-dose glucocorticoids in the Chiba-Shimoshizu Rheumatic Cohort. A total of 2631 patients with collagen vascular diseases (aged >or=18 yr) was registered between 1986 and 2006. The prevalence of symptomatic vertebral fracture was compared between the high-dose glucocorticoid group newly treated with high-dose glucocorticoids (>or=20 mg/d prednisolone equivalent) (n = 700), and the non-glucocorticoid controls not treated with glucocorticoids (n = 194). During the 20-yr study period, symptomatic vertebral fractures occurred more frequently in the high-dose glucocorticoid group (23.9%) than in the non-glucocorticoid controls (2.6%). According to a Kaplan-Meier analysis, the cumulative incidence of symptomatic vertebral fracture was significantly higher in the high-dose glucocorticoid group than in the non-glucocorticoid controls (P < 0.001). Stratified into age quartiles of the high-dose glucocorticoid group (age 18-31, 32-47, 48-59, and 60-88 yr), the patients had a markedly increased incidence of symptomatic vertebral fracture with aging. The hazard ratios were also significantly higher in the older age quartile of 60-68 than in the younger age quartile of 32-47 (P < 0.001 for trend). The hazard ratio was 26-fold higher in patients aged 60-88 than in patients aged 18-31 (P < 0.01). In the group with fractures, the treatment duration before fracture was negatively associated with the initial age (r = -0.6587; P < 0.001). The prevalence of symptomatic vertebral fractures was higher in the patients treated with high-dose glucocorticoids than the untreated controls. Vertebral fractures were age dependent in patients treated with high-dose glucocorticoids. Treatment duration before fracture incidence was significantly shorter in the older patients.
    The Journal of Clinical Endocrinology and Metabolism 03/2009; 94(5):1671-7. DOI:10.1210/jc.2008-1578 · 6.31 Impact Factor
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    ABSTRACT: The treatment and prevention of glucocorticoid (GC)-induced osteoporosis have been controversial in premenopausal women during their childbearing years. This study assessed the incidence and risk factors for symptomatic vertebral fracture in women of childbearing age newly treated with high-dose GC. An observational cohort study was conducted at the rheumatic center of Shimoshizu National Hospital in Chiba, Japan, from 1986 to 2006. The prevalence of symptomatic vertebral fractures, as determined by x-rays, was assessed in premenopausal (aged <50 years) women with collagen vascular disease newly treated with high-dose GC (> or =20 mg/d prednisolone equivalent) compared with their counterparts who did not receive GC. Differences in the incidences of vertebral fractures were compared between groups by the Kaplan-Meier method and evaluated by the log-rank test. Hazard ratios (HRs) with 95% CIs were estimated using the Cox proportional hazards regression model. A total of 373 women were assessed: 292 patients in the high-dose GC treatment group (mean [SD] initial age, 32.4 [8.2] years; initial dose, 43.8 [14.9] mg/d; follow-up time, 124.2 [75.4] months) and 81 patients in the non-GC control group (initial age, 39.3 [7.8] years; follow-up time, 106.5 [79.7] months). Symptomatic vertebral fractures occurred more frequently in the high-dose GC group (11.3%) than in the non-GC group (1.2%). Using the Cox model, the adjusted HR for the high-dose GC group was 13.96 (95% CI, 1.87-104.22) relative to the non-GC group. In the high-dose GC group, Kaplan-Meier analyses revealed that the incidence of fractures in women in their forties was significantly higher in comparison with those in their twenties (P < 0.001) and thirties (P < 0.05), and that the incidence of fractures in those who consumed alcohol (>80 g/wk of pure alcohol) was significantly higher than in those who did not (P < 0.05). The Cox model also revealed that the risk was independently higher with every 10-year increment of initial age (HR = 2.27; 95% CI, 1.46-3.53), with every GC dose increase (HR = 2.28; 95% CI, 1.58-3.31), and with each 1-gram decrease of cumulative GC dose (HR = 0.95; 95% CI, 0.93-0.98). In this study, high-dose GC use was associated with a significantly high prevalence of symptomatic vertebral fractures in premenopausal women with collagen vascular disease during their childbearing years. However, the fracture risk was relatively low in women of childbearing age, especially those in their twenties and thirties during the early years of treatment.
    Gender Medicine 06/2010; 7(3):218-29. DOI:10.1016/j.genm.2010.06.004 · 1.55 Impact Factor
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