RT Journal Article T1 Do high MICs predict the outcome in invasive fusariosis? A1 Nucci, Marcio A1 Jenks, Jeffrey A1 Thompson, George R A1 Hoenigl, Martin A1 Dos Santos, Marielle Camargo A1 Forghieri, Fabio A1 Rico, Juan Carlos A1 Bonuomo, Valentina A1 López-Soria, Leyre A1 Lass-Flörl, Cornelia A1 Candoni, Anna A1 Garcia-Vidal, Carolina A1 Cattaneo, Chiara A1 Buil, Jochem A1 Rabagliati, Ricardo A1 Roiz, Maria Pia A1 Gudiol, Carlota A1 Fracchiolla, Nicola A1 Campos-Herrero, Maria Isolina A1 Delia, Mario A1 Farina, Francesca A1 Fortun, Jesus A1 Nadali, Gianpaolo A1 Sastre, Enric A1 Colombo, Arnaldo L A1 Pérez Nadales, Elena A1 Alastruey-Izquierdo, Ana A1 Pagano, Livio AB Invasive fusariosis (IF) affects mostly severely immunocompromised hosts and is associated with poor outcome. Since Fusarium species exhibit high MICs for most antifungal agents, this could explain the poor prognosis. However, a clear-cut correlation between MIC and outcome has not been established. To evaluate the correlation between MIC and outcome (6 week death rate) in patients with IF. We performed a multicentre retrospective study of patients with IF who received treatment and had MIC levels determined by EUCAST or CLSI for the drug(s) used during treatment. We compared the MIC50 and MIC distribution among survivors and patients who died within 6 weeks from the diagnosis of IF. Among 88 patients with IF, 74 had haematological diseases. Primary treatment was monotherapy in 52 patients (voriconazole in 27) and combination therapy in 36 patients (liposomal amphotericin B + voriconazole in 23). The MIC50 and range for the five most frequent agents tested were: voriconazole 8 mg/L (range 0.5-64), amphotericin B 2 mg/L (range 0.25-64), posaconazole 16 mg/L (range 0.5-64), itraconazole 32 mg/L (range 4-64), and isavuconazole 32 mg/L (range 8-64). There was no difference in MIC50 and MIC distribution among survivors and patients who died. By contrast, persistent neutropenia and receipt of corticosteroids were strong predictors of 6 week mortality. Our study did not show any correlation between MIC and mortality at 6 weeks in patients with IF. YR 2021 FD 2021 LK http://hdl.handle.net/10668/16801 UL http://hdl.handle.net/10668/16801 LA en DS RISalud RD Apr 9, 2025