If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email email@example.com
The development of modern corticosteroids has revolutionized the treatment and management of asthma. Importantly, to a great extent, it has reduced the incidence of systemic side effects. However, at high doses, inhaled corticosteroid therapy is not devoid of systemic side effects such as growth suppression, reduction in bone density, and cataracts. Hence, it becomes important to monitor these effects. The most commonly used parameters that are monitored for systemic steroid effects measure the endogenous cortisol secretion. Measured parameters allow a direct comparison of the degree of systemic activity, which is difficult, based on steroid drug levels, because of the difference in potency of the various compounds. Evaluation of endogenous cortisol concentrations is complicated because of the presence of a circadian rhythm with highest cortisol concentrations in the morning and trough concentrations around bedtime. However, methods are available that consider circadian cortisol secretion. Cortisol levels should be measured over 24 hours at steady state. The area between the serum cortisol concentrations in the control group and the suppressed group is recognized as a good cumulative marker of systemic steroid activity. Cortisol suppression is a more sensitive marker for inhaled corticosteroid safety than parameters that consider effects on bone or lymphocyte suppression. If an inhaled corticosteroid dosing regimen does not show any significant cortisol suppression based on 24-hour serum area under the curve values, it can be assumed that this treatment is safe and unlikely to present any clinically relevant safety with respect to systemic steroid activity.
Document Type: Research Article
Publication date: March 1, 2005
More about this publication?
Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.
The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.
Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.
Articles marked "F" offer free full text for personal noncommercial use only.