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Caspofungin Therapy in Prosthetic Valve Endocarditis and Candidemia Due to Itraconazole-Resistant Candida Glabrata (Nakaseomyces Glabratus): A Case Report Publisher



Khurgami MR ; Fattahi M ; Beigi EH ; Tamimi P ; Ghaderi A ; Hajiesmail G
Authors

Source: Current Medical Mycology Published:2025


Abstract

Background and Purpose: Candidemia is a prevalent nosocomial bloodstream infection with a high mortality rate. Involvement of heart valves by Candida spp. after candidemia can result in native and prosthetic valve endocarditis as biofilm-related infections. Case Report: This report aimed to introduce a case of a 13-year-old male with bloodstream infection and prosthetic valve endocarditis, caused by itraconazole-resistant Candida glabrata (Nakaseomyces glabratus). Despite undergoing itraconazole for 4 weeks, the patient did not improve. White colonies were identified as C. glabrata (N. glabratus) by Restriction Fragment Length Polymorphism-Polymerase Chain Reaction. The isolate was resistant to itraconazole (MIC=8 µg/mL) but susceptible to amphotericin B and caspofungin. Based on concerns about biofilm-related resistance, treatment was switched to caspofungin for 5 weeks. He continued to do well and showed no signs of relapse during his 6-month followup. Conclusion: This study explored the importance of antifungal susceptibility testing in handling complicated infections, as well as the potential of caspofungin in the treatment of cases of fungal bloodstream infections and endocarditis. © 2025 Elsevier B.V., All rights reserved.
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