Mycopathologia · 2026
Invasive Fusariosis Among Patients with Acute Leukemia: A 12-Year Single-Center Experience in a Middle-Income Country.
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de Luca Ito Raquel Keiko, Bonazzi Pontes Patricia Rodrigues, Kono Magri Adriana Satie Goncalves, Ibrahim Karim Yaqub, Encinas Sejas Odeli Nicole, Katayose Goto Jessica Toshie, Pereira Juliana, de Souza Carvalho Melhem Marcia, Magri Marcello Mihailenko Chaves, Abdala Edson
Аннотация
INTRODUCTION: Invasive fusariosis (IF) is one of the most aggressive mold infections in patients with acute leukemia, characterized by rapid dissemination, high rates of fungemia, and limited antifungal susceptibility. Its impact is particularly severe in middle-income countries, yet single-center data from these settings remain scarce.
MATERIALS AND METHODS: We conducted a retrospective study of all patients with acute leukemia and proven IF, diagnosed according to EORTC/MSG criteria, from January 2011 to August 2023. Demographic, clinical, therapeutic, and outcome variables were analyzed.
RESULTS: Twenty-six patients were identified. Median age was 46.5 years, and 53.8% were female. Acute myeloid leukemia was the most frequent underlying condition. All patients presented with severe neutropenia at diagnosis. Disseminated disease occurred in 84.6% of cases; two patients had isolated fungemia and two had localized skin disease. Cutaneous lesions were present in 73% of patients, and 31% had pulmonary involvement. Antifungal prophylaxis, mainly fluconazole or anidulafungin, was used in 69.2% of cases. Treatment consisted of lipid formulations of amphotericin B, either alone or combined with voriconazole. Thirty-day mortality reached 38.5%. Mortality was significantly higher among patients undergoing re-induction therapy, whereas those who had received antifungal prophylaxis exhibited lower mortality.
DISCUSSION: IF in acute leukemia was associated with extensive dissemination and substantial early mortality. Mortality rates were higher in patients in re-induction therapy and lower in those who received antifungal prophylaxis. The role of combination antifungal therapy requires further investigation.
MATERIALS AND METHODS: We conducted a retrospective study of all patients with acute leukemia and proven IF, diagnosed according to EORTC/MSG criteria, from January 2011 to August 2023. Demographic, clinical, therapeutic, and outcome variables were analyzed.
RESULTS: Twenty-six patients were identified. Median age was 46.5 years, and 53.8% were female. Acute myeloid leukemia was the most frequent underlying condition. All patients presented with severe neutropenia at diagnosis. Disseminated disease occurred in 84.6% of cases; two patients had isolated fungemia and two had localized skin disease. Cutaneous lesions were present in 73% of patients, and 31% had pulmonary involvement. Antifungal prophylaxis, mainly fluconazole or anidulafungin, was used in 69.2% of cases. Treatment consisted of lipid formulations of amphotericin B, either alone or combined with voriconazole. Thirty-day mortality reached 38.5%. Mortality was significantly higher among patients undergoing re-induction therapy, whereas those who had received antifungal prophylaxis exhibited lower mortality.
DISCUSSION: IF in acute leukemia was associated with extensive dissemination and substantial early mortality. Mortality rates were higher in patients in re-induction therapy and lower in those who received antifungal prophylaxis. The role of combination antifungal therapy requires further investigation.