Fungemia: Difference between revisions

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* Systemic infection with a [[Candida species]]
= Candidemia =


== Definition ==
= Etiology =

* Systemic infection with a [[Candida.md|''Candida'']] species

== Etiology ==


* ''C. albicans'' (46%)
* ''C. albicans'' (46%)
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* Numbers based on [https://doi.org/10.1086/599039 https://doi.org/10.1086/599039]
* Numbers based on [https://doi.org/10.1086/599039 https://doi.org/10.1086/599039]


== Risk Factors ==
= Risk Factors =


* Immune-compromised
* Immune-compromised
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* Gastrointestinal perforations
* Gastrointestinal perforations


== Presentation ==
= Presentation =


* Positive blood culture for Candida spp.
* Positive blood culture for Candida spp.
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* Triad of bowel perforation, increase white cell count, and decreased platelets
* Triad of bowel perforation, increase white cell count, and decreased platelets


== Investigations ==
= Investigations =


* Blood culture
* Blood culture
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* Echo to rule out endocarditis
* Echo to rule out endocarditis


== Management ==
= Management =


* '''Never treat as a contaminant!'''
* '''Never treat as a contaminant!'''
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** Alternative (resistance or septic): micafungin or another echinocandin
** Alternative (resistance or septic): micafungin or another echinocandin
** Alternative (last-line): amphotericin B
** Alternative (last-line): amphotericin B

[[Category:Yeasts]]
[[Category:Endovascular infections]]

Revision as of 01:26, 15 August 2019

Etiology

  • C. albicans (46%)
  • C. glabrata (26%)
  • C. parapsilosis (16%)
  • C. tropicalis (8%)
  • C. krusei (3%)
  • C. auris (rare): growing concern for multidrug resistance
  • Numbers based on https://doi.org/10.1086/599039

Risk Factors

  • Immune-compromised
  • Long-term and broad-spectrum antibiotic use, especially in ICU
  • Multiple or long-term IV lines, central lines, etc.
  • Total parenteral nutrition
  • Acute kidney injury, especially requiring dialysis
  • Abdominal surgery
  • Gastrointestinal perforations

Presentation

  • Positive blood culture for Candida spp.
  • Fever
  • Triad of bowel perforation, increase white cell count, and decreased platelets

Investigations

  • Blood culture
  • Blood count (increased WBCs, decreased platelets)
  • Echo to rule out endocarditis

Management

  • Never treat as a contaminant!
  • Requires ophthalmology consult to rule out endophthalmitis, ideally around 1 week after positive cultures
  • Antifungal therapy
    • First-line (stable patients): fluconazole if no risk factors for a resistant species
    • Alternative (resistance or septic): micafungin or another echinocandin
    • Alternative (last-line): amphotericin B