A prospective study of the hypothalamic-pituitary-adrenal axis in children with acute lymphoblastic leukemia receiving chemotherapy.

Autor: Salem MA, Tantawy AA, El Sedfy HH, El Laboudy MA, Toaima DN, Mahmoud NH, Selim DM
Jazyk: angličtina
Zdroj: Hematology (Amsterdam, Netherlands) [Hematology] 2015 Jul; Vol. 20 (6), pp. 320-7. Date of Electronic Publication: 2014 Oct 16.
DOI: 10.1179/1607845414Y.0000000208
Abstrakt: Background: Glucocorticoids are essential in protocols of therapy of acute lymphoblastic leukemia (ALL).
Objectives: To assess the incidence, severity, morbidity, and risk factors of hypothalamic-pituitary-adrenal axis (HPA) suppression in children with ALL, and the time course of recovery.
Design: Forty standard risk ALL children treated in the Pediatric Hematology/Oncology Unit, Ain-Shams University, Egypt, were classified into dexamethasone (DXM) group: 20 patients on children cancer group protocol and prednisone (PDN) group: 20 patients on modified Berlin-Frankfurt-Muenster (BFM) study group 90 protocol. Patients were followed clinically and by laboratory assessment of morning s.ACTH, basal and after low-dose adrenocorticotrophic hormone stimulation test of cortisol and DHEAS, at diagnosis and every 2 weeks till adrenal recovery.
Results: HPA recovery was earlier in PDN than DXM group (P < 0.05). In induction phases 1 and 2: 65 and 75% of PDN group recovered on week 2, while 45 and 50% of DXM group recovered in week 4. Adrenal recovery was predicted 2 weeks earlier by normalized s.DHEAS. Children below 5 years of age had earlier recovery in PDN group (P = 0.04), no age effect in DXM group.
Conclusion: Adrenal suppression is an inevitable consequence of ALL therapy. Monitoring of cortisol levels and steroid coverage during stress is recommended, and gradual steroid tapering is suggested.
Databáze: MEDLINE
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