For all out there using GC, are you aware of the adverse effects with the does used for AF? Thus far, no one has come forward with evidence for GC use in this fictitious disorder. I said I would get to the adverse effects, so here is a small introduction. There is more to come and it ain't good.
The consensus is for GC (HC) doses up to 40 mg, but typically 20-30mg daily. And this is for a long time in many. I will ask again, has your prescribing doctor bothered to obtain a bone mineral density (DXA) baseline? If you have not obtained a DXA scan, your doctor does not give a damn about you except for making money! Think About It.
Peacey SR, Guo CY, Robinson AM, et al.
Glucocorticoid replacement therapy: are patients over treated and does it matter? Clin Endocrinol (Oxf) 1997;46(3):255-61.
BACKGROUND AND OBJECTIVES: Adequate assessment of patients on glucocorticoid replacement therapy is of great importance to avoid the consequences of under or over treatment, but no simple test is available for this. The aims of this study were (1) to assess adequacy of glucocorticoid replacement in hypoadrenal patients, (2) to correlate serum cortisol levels (cortisol day curve) with 24-hour urine free cortisol excretion and (3) to assess the impact of glucocorticoid dose optimization on markers of bone formation and bone resorption.
DESIGN: Cross-sectional study of current replacement therapy and a prospective study of the effect of dose alteration on bone turnover markers.
PATIENTS: Thirty-two consecutive patients on replacement glucocorticoid therapy (12 Addison's disease, 20 hypopituitarism) from a University teaching hospital out-patient department.
MEASUREMENTS: Serum and urinary cortisol, osteocalcin, N-telopeptide of type I collagen (NTX) and bone mineral density.
RESULTS: 28/32 (88%) patients required a change of therapy; 24/32 (75%) a total reduction in dose, 18/32 (56%) a change in replacement therapy regimen or drug and 14/32 (44%) both changes.
The mean daily dose of hydrocortisone was reduced from 29.5 +/- 1.2 to 20.8 +/- 1.0 mg. A significant correlation was found between peak cortisol and 24-hour urine free cortisol/ creatinine (Spearman correlation r = 0.60, P < 0.0001; n = 51). Following hydrocortisone dose reduction, median osteocalcin increased from 16.7 micrograms/l (range 8.2-65.7) to 19.9 micrograms/l (8.2-56.3); P < 0.01, with no change in the NTX/creatinine ratio.
CONCLUSIONS: A high proportion of patients on conventional corticosteroid replacement therapy are over treated or on inappropriate replacement regimens. To reduce the long term risk of osteoporosis, corticosteroid replacement therapy should be individually assessed and over replacement avoided.
Lovas K, Gjesdal CG, Christensen M, et al.
Glucocorticoid replacement therapy and pharmacogenetics in Addison's disease: effects on bone. Eur J Endocrinol 2009;160(6):993-1002.
Context: Patients with primary adrenal insufficiency (Addison's disease) receive more glucococorticoids than the normal endogenous production, raising concern about adverse effects on bone.
Objective: To determine i) the effects of glucocorticoid replacement therapy on bone, and ii) the impact of glucocorticoid pharmacogenetics.
Design, setting and participants: A cross-sectional study of two large Addison's cohorts from Norway (n=187) and from UK and New Zealand (n=105).
Main outcome measures: Bone mineral density (BMD) was measured; the Z-scores represent comparison with a reference population. Blood samples from 187 Norwegian patients were analysed for bone markers and common polymorphisms in genes that have been associated with glucocorticoid sensitivity.
Results: Femoral neck BMD Z-scores were significantly reduced in the patients (Norway: mean -0.28 (95% confidence intervals (CI) -0.42, -0.16); UK and New Zealand: -0.21 (95% CI -0.36, -0.06)). Lumbar spine Z-scores were reduced (Norway: -0.17 (-0.36, +0.01); UK and New Zealand: -0.57 (-0.78, -0.37)), and significantly lower in males compared with females (P=0.02). The common P-glycoprotein (ABCB1) polymorphism C3435T was significantly associated with total BMD (CC and CT>TT P=0.015), with a similar trend at the hip and spine.
Conclusions: BMD at the femoral neck and lumbar spine is reduced in Addison's disease, indicating undesirable effects of the replacement therapy. The findings lend support to the recommendations that 15-25 mg hydrocortisone daily is more appropriate than the higher conventional doses. [Note: Addisonian patients have No cortisol.] A common polymorphism in the efflux transporter P-glycoprotein is associated with reduced bone mass and might confer susceptibility to glucocorticoid induced osteoporosis.
Sadat-Ali M, Alelq AH, Alshafei BA, Al-Turki HA, Abujubara MA.
Osteoporosis prophylaxis in patients receiving chronic glucocorticoid therapy. Ann Saudi Med 2009;29(3):215-8.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2754428/?tool=pubmed
BACKGROUND AND OBJECTIVES:
Glucocorticoid-induced osteoporosis (GIOP) is the most common form of secondary osteoporosis, yet few patients receive proper measures to prevent its development. We retrospectively searched prescription records to determine if patients receiving oral prednisolone were receiving prophylaxis or treatment for osteopenia and osteoporosis.
METHODS: Patients who were prescribed > or =7.5 milligrams of prednisolone for 6 months or longer during a 6- month period were identified through the prescription monitoring system. Demographic and clinical data were extracted from the patient records, and dual energy x-ray absorptiometry (DEXA) scans were retrieved, when available. Use of oral calcium, vitamin D and anti-resorptives was recorded.
RESULTS: One hundred males and 65 females were receiving oral prednisolone for a mean (SD) duration of 40.4 (29.9) months in males and 41.2 (36.4) months in females. Twenty-one females (12.7%) and 5 (3%) males had bone mineral density measured by DEXA. Of those, 10 (47.6%) females and 3 (50%) males were osteoporotic and 11(52.4%) females and 2 (40%) males were osteopenic. Calcium and vitamin D were prescribed to the majority of patients (60% to 80%), but none were prescribed antiresorptive/anabolic therapy.
CONCLUSIONS: Patients in this study were neither investigated properly nor treated according to the minimum recommendations for the management of GIOP. Physician awareness about the prevention and treatment of GIOP should be a priority for the local health care system.
Walsh LJ, Wong CA, Pringle M, Tattersfield AE.
Use of oral corticosteroids in the community and the prevention of secondary osteoporosis: a cross sectional study. BMJ 1996;313(7053):344-6.
http://www.bmj.com/cgi/content/full/313/7053/344
Abstract Objective:
To determine the prevalence of continuous use of oral steroids in the general population, the conditions for which they are prescribed, and the extent to which patients taking oral steroids are taking treatment to prevent osteoporosis.
Design: A cross sectional study with a four year retrospective review of drug treatment. Setting: Eight large general practices in central and southern Nottinghamshire.
Subjects: A population of 65 786 patients (52% women) registered with a general practitioner during 1995.
Results: 303 patients (65% (197) women) aged 12-94 years were currently taking "continuous" (for at least three months) oral corticosteroid treatment. This figure represents 0.5% of the total population and 1.4% (245/17 114) of patients aged 55 years or more (1.7% (166/9601) of women).
The usual steroid was prednisolone (97% (294/303)), the mean dose was 8.0 mg/day, and the median duration of oral steroid treatment determined in 149 patients was three years. The most common conditions for which continuous oral steroids were prescribed were rheumatoid arthritis (23% (70)), polymyalgia rheumatica (22% (66)), and asthma or chronic obstructive airways disease (19% (59)). Only 41 (14%) of the 303 patients taking oral steroids had received treatment for the prevention of osteoporosis over the past four years. Although 37 of the 41 patients were women, only 10% (18/181) of the women over 45 years taking continuous oral corticosteroids were currently taking hormone replacement therapy.
Conclusions: If our figures are typical then they suggest that over 250 000 people in the United Kingdom are taking continuous oral steroids and that most of these are taking no prophylaxis against osteoporosis. Key messages The prevalence of use of oral corticosteroids in a community based population of 65 786 was 0.5%, rising to 1.7% in women aged >/=55 years The main indications for oral steroids were rheumatoid arthritis, polymyalgia, and asthma or chronic obstructive pulmonary disease Only 14% of patients taking oral steroids had received any treatment to prevent or treat osteoporosis These data suggest that over a quarter of a million people in the United Kingdom are currently taking oral corticosteroids and hence at risk of adverse effects