Fatal Disseminated Infection by Trichosporon asahii Under Voriconazole Therapy in a Patient with Acute Myeloid Leukemia: A Review of Breakthrough Infections by Trichosporon spp

Mycopathologia. 2020 Apr;185(2):377-388. doi: 10.1007/s11046-019-00416-w. Epub 2019 Dec 18.

Abstract

Introduction: Cases of invasive Trichosporon infections have increasingly emerged; it is now the second leading cause of yeast bloodstream infections after Candida spp., particularly in the immunosuppressed population, where it often causes breakthrough fungemia with high mortality.

Methods: We present a case report of a breakthrough Trichosporon asahii infection in a patient with acute myeloid leukemia and review all of the cases of breakthrough Trichosporon spp. infections published in the literature to date.

Results: We extracted 68 cases of breakthrough Trichosporon spp. infections, wherein 95.5% patients had hematological malignancy, 61.8% of them occurred in the presence of echinocandins, 22% of triazoles, 13.2% of amphotericin and 3% of other combinations of antifungals. The most prevalent manifestation was fungemia (94%); 82.8% of these were associated with the presence of a central venous catheter. The overall mortality was 68.7%; the patients who survived recovered from the neutropenic event.

Conclusions: Invasive trichosporonosis is an acute fatal condition that occurs in immunosuppressed patients, usually under antifungal selective pressure. Typically, neutropenia and its underlying diseases are associated with adverse outcomes.

Keywords: Antifungal; Breakthrough; Fungemia; Trichosporon asahii; Trichosporonosis; Yeast.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adult
  • Amphotericin B / therapeutic use
  • Antifungal Agents / therapeutic use
  • Central Venous Catheters / adverse effects
  • Echinocandins / therapeutic use
  • Fungemia / pathology
  • Hematologic Neoplasms / complications
  • Humans
  • Immunocompromised Host
  • Leukemia, Myeloid, Acute / complications*
  • Male
  • Middle Aged
  • Mortality
  • Neutropenia / complications
  • Triazoles / therapeutic use
  • Trichosporon / isolation & purification*
  • Trichosporonosis* / complications
  • Trichosporonosis* / drug therapy
  • Trichosporonosis* / pathology
  • Voriconazole / therapeutic use*

Substances

  • Antifungal Agents
  • Echinocandins
  • Triazoles
  • Amphotericin B
  • Voriconazole