• Helena Pomares, Montserrat Arnan, Isabel Sánchez-Ortega, Anna Sureda, and Rafael F Duarte.
• Department of Haematology, Catalan Institute of Oncology - Hospital Duran i Reynals, Biomedical Research Institute of Bellvitge (Idibell), Barcelona, Spain.
• Mycoses. 2016 Aug 1; 59 (8): 516-9.

AbstractThe aim of this study is to analyse the risk of invasive fungal infection (IFI) and the need for antifungal prophylaxis in patients with acute myeloid leukaemia and myelodysplastic syndromes (AML/MDS) treated with azacitidine. We retrospectively analysed the incidence of IFI according to EORTC-MSG criteria in 121 consecutive AML/MDS patients receiving 948 azacitidine courses (median 5, range 1-43) between June 2007 and June 2015. Four cases of IFI (two possible, one probable aspergillosis and one proven candidemia) occurred in this series. The incidence rate of proven/probable IFI was 0.21% per treatment cycle and 1.6% per patient treated for the whole series, and 0.73% per treatment cycle and 4.1% per patient treated in those with severe neutropenia. Two patients died from IFI, leading to an IFI-attributable mortality rate of 1.65% per patient and 0.21% per treatment cycle. The numbers needed to treat with prophylaxis to prevent one case of IFI are 238 azacitidine cycles or 30 patients throughout their whole treatment course, and 137 azacitidine cycles or 24 patients among those with severe neutropenia. AML/MDS patients treated with azacitidine, including those with severe prolonged neutropenia, have a very low risk of IFI which does not justify the use of antifungal prophylaxis. © 2016 Blackwell Verlag GmbH.

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