Antifungal therapies in the intensive care unit

Ranjan Chowdhry1, William L Marshall

  • 1Division of Infectious Disease, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.

Insights

Fungal infections are rising, especially in intensive care units (ICUs). New antifungal agents and targeted prophylaxis strategies offer improved treatment options for these serious infections.

Area of Science:

  • Infectious Diseases
  • Critical Care Medicine
  • Mycology

Background:

  • Rising incidence of fungal infections nationwide, particularly among immunosuppressed individuals.
  • Intensive care unit (ICU) fungal infections often linked to iatrogenic factors like catheters and broad-spectrum antibiotics.
  • Delays in diagnosis and treatment can negatively impact patient outcomes in ICUs.

Purpose of the Study:

  • To review clinical syndromes requiring specialized treatment in ICUs.
  • To discuss current guidelines for antifungal prophylaxis, including fluconazole use in select ICU patients.
  • To highlight new antifungal agents for treating resistant fungal strains.

Main Methods:

  • Review of current literature on fungal infections in intensive care units.
  • Analysis of clinical syndromes and treatment strategies.
  • Evaluation of antifungal prophylaxis guidelines and new therapeutic agents.

Main Results:

  • Recognition of specific ICU fungal syndromes can improve patient care.
  • Antifungal prophylaxis, such as fluconazole, is recommended only for select ICU patients due to resistance concerns.
  • Newer antifungal agents offer improved safety and efficacy profiles for treating resistant fungi.

Conclusions:

  • Effective management of ICU fungal infections requires recognizing specific syndromes and optimizing therapy.
  • Careful consideration of antifungal resistance is crucial when implementing prophylaxis strategies.
  • Advances in antifungal medications provide safer and more effective treatment options for critically ill patients.

Related Concept Videos

Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...
Cryptococcal Meningitis01:27

Cryptococcal Meningitis

Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Candidiasis01:20

Candidiasis

Candidiasis is a fungal infection caused by opportunistic species of Candida. It can affect various anatomical sites, including the skin, oral cavity, nails, and genitourinary tract. Among its forms, vaginal candidiasis is the most common type of mucosal infection. It typically results from the overgrowth of Candida albicans in the vaginal mucosa. Under normal conditions, C. albicans exists as a commensal organism within the vaginal microbiota, regulated by the dominance of lactobacilli, which...
Hand hygiene01:23

Hand hygiene

Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Healthcare Associated Infections II: Preventive Measures01:22

Healthcare Associated Infections II: Preventive Measures

Essential infection prevention measures are based on the knowledge of the infection chain, the modes of transmission in healthcare settings, and the use of the best practices in all healthcare settings. Compulsory public reporting of healthcare-associated infection rates is needed to allow individuals and the community to make informed choices regarding selecting a healthcare facility.
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
Endocarditis IV: Nursing Management01:29

Endocarditis IV: Nursing Management

Infective endocarditis (IE) is a chronic infection of the heart's endocardium, primarily affecting the heart valves. A detailed nursing assessment for a patient with IE involves collecting subjective and objective data to ensure an accurate diagnosis and timely intervention.Subjective DataThe nurse gathers information about the patient's symptoms and complaints during the subjective assessment. Patients with infective endocarditis often report non-specific symptoms that can mimic other...