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  • Title: Disseminated Trichosporon asahii infection in a combined liver-kidney transplant recipient successfully treated with voriconazole.
    Author: Sah R, Soin AS, Chawla S, Wadhwa T, Gupta N.
    Journal: Immun Inflamm Dis; 2019 Sep; 7(3):125-129. PubMed ID: 31006179.
    Abstract:
    INTRODUCTION: Trichosporon asahii is an emerging cause of systemic fungal infection in an immunocompromised host. Several life threatening disseminated T. asahii infection in single solid organ (liver or kidney) transplant recipients, in neutropenic and hematological malignancy patients have been reported. CASE PRESENTATION (METHODS AND RESULTS): A 49-year old gentleman who underwent simultaneous living-donor liver transplantation (donor sister) and kidney transplant (donor wife) developed fever and subsegmental patchy consolidation with right sided pleural effusion on fourth postoperative day. Central line blood stream infection was suspected. Blood culture grew creamy white colonies of T. asahii on blood agar with characteristic dirty-green colonies on CHROMagar. Laboratory analysis of pleural fluid also revealed budding yeast cells identified as T. asahii. Microscopy of the isolates showed hyphae, arthroconidia, and blastospores. The isolates were identified as T. asahii by VITEK MS which uses matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) technology. Initially liposomal amphotericin B and micafungin was initiated, but due to lack of clinical and microbiological response, patient was switched to voriconazole. Simultaneously, tacrolimus doses were reduced to one-third in view of interaction with voriconazole. Subsequently, patient improved with resolution of fever and microbiological cure. CONCLUSION: This is the first case report of disseminated T. asahii infection in a combined liver-kidney transplant recipient successfully treated with voriconazole. Azole antifungal are the promising drug of choice for systemic T. asahii infection. Drug interactions should be considered while using these antifungal agents.
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