PCR Based Detection of Azole Resistance in A. Fumigatus to Improve Patient Outcome.

A standard treatment protocol for invasive aspergillosis (IA) will be implemented in several academic hematology centers in the Netherlands in which a diagnostic test demonstrating azole resistance by multiplex real-time polymerase chain reaction will guide the choice of appropriate antifungal treatment. Objectives: 1. Improve the outcome of patients infected with azole resistant A. fumigatus by the early detection of Resistance Associated Mutations (RAMs) and with this the earlier initiation of the most appropriate therapy. 2. Monitor the prevalence of invasive aspergillosis due to strains carrying the TR34/L98H or the TR46/T289A/Y121F resistance associated mutations in the Netherlands.