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Pharmacokinetics of Glucocorticoid Replacement Before and After Bariatric Surgery in Patients With Adrenal Insufficiency

de Heide, L. J. M., de Boer, H. H. R., van Borren, M., Emous, M., Aarts, E. & de Boer, H., Dec-2018, In : Journal of the endocrine society. 2, 12, p. 1338-1344 7 p.

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Adequate glucocorticoid replacement in patients with primary or secondary adrenal insufficiency is essential to maintain general well-being. Little is known about the effects of bariatric surgery on glucocorticoid absorption. This study evaluates glucocorticoid absorption before and after bariatric surgery, with assessment of plasma cortisol profiles in five patients receiving glucocorticoid replacement therapy for primary (n = 1) or secondary (n = 4) adrenal insufficiency. One patient underwent sleeve gastrectomy (SG), one a one-anastomosis gastric bypass (mini-GB), and three a Roux-en-Y gastric bypass (RYGB). Pharmacokinetic calculations were based on plasma cortisol measurements performed during the first 6 hours after ingestion of the morning dose. Plasma cortisol profiles were very similar before and after surgery; only minor differences were observed. After SG, plasma peak cortisol concentration and cortisol area under the curve (AUC) were higher by 23% and 24%, respectively, and time to peak cortisol was 10 minutes shorter. The mini-GB had no marked effect on pharmacokinetic parameters. In the three patients who underwent RYGB, AUC changes ranged from -12% to 20%. In conclusion, in this small number of patients with adrenal insufficiency, plasma cortisol profiles were similar before and after bariatric surgery. However, in view of individual differences in response to different types of surgery, we recommend postoperative cortisol profiling to guide appropriate glucocorticoid dose adjustment. Copyright (C) 2018 Endocrine Society

Original languageEnglish
Pages (from-to)1338-1344
Number of pages7
JournalJournal of the endocrine society
Volume2
Issue number12
Publication statusPublished - Dec-2018

    Keywords

  • bariatric surgery, glucocorticoid, pharmocokinetics, replacment, GASTRIC BYPASS-SURGERY, HYPOTHALAMIC OBESITY, CRANIOPHARYNGIOMA, CORTISOL

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