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SAMJ: South African Medical Journal

On-line version ISSN 2078-5135
Print version ISSN 0256-9574

Abstract

ZOLLNER, E W. Is adrenal suppression in asthmatic children reversible? A case series. SAMJ, S. Afr. med. j. [online]. 2018, vol.108, n.6, pp.502-505. ISSN 2078-5135.  http://dx.doi.org/10.7196/samj.2018.v108i6.13031.

BACKGROUND. Six hypocortisolaemic asthmatic children on steroids given at physiological doses were identified during a previous study. OBJECTIVES. To establish whether hypothalamic-pituitary-adrenal axis suppression (HPAS) could be reversed in hypocortisolaemic asthmatic children treated with steroids without sacrificing asthma control. METHODS. In this case series, treatment of six hypocortisolaemic patients was modified by introducing steroid-sparing asthma medications. Serum cortisol and repeat overnight metyrapone tests (ONMTPTs) were done until HPAS was reversed in all patients. A retrospective folder review was performed and the following data were extracted: body mass index standard deviation score (BMI SDS), adherence, daily steroid type and dose, treatment modification, serum cortisol, final ONMTPT result and time taken to achieve normalisation. RESULTS. The median serum cortisol level recovered to 311 nmol/L after 0.9 years (median). The ONMTPT normalised within 3.3 years (median). Steroid load decreased from 9.2 to 5.0 hydrocortisone equivalent mg/m2/d (medians), while asthma score improved from 1.42 to 0.85 (medians). Poor adherence was noted in two children before and four after treatment modification. BMI SDS decreased from -0.08 to -0.16 (medians). CONCLUSIONS. Hypocortisolaemia and HPAS could be reversed in asthmatic children treated with physiological doses of steroids by reducing steroid load by 40% and supplementing therapy with steroid-sparing medication. Poor adherence may have either contributed to or retarded HPA recovery. Simultaneously, asthma control improved. Confirmation by a prospective study would be ideal, but may not be feasible.

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