Related Experiment Video
Updated: Aug 18, 2026

An Ex vivo Assay to Study Candida albicans Hyphal Morphogenesis in the Gastrointestinal Tract
Published on: July 1, 2020
Fungal infection in the intensive care unit
1Department of Medical Microbiology, University of Wales College of Medicine, Cardiff, UK.
Abstract:
Fungal infection in critically ill patients is an increasingly prevalent problem. Candida spp. cause the majority of these infections in ICU. They occur most commonly in patients with severe underlying illness, multiple courses of antibiotics and intravascular catheters. Clinical diagnosis is difficult due to nonspecific signs and the frequent occurrence of widespread superficial colonization with Candida spp. in ventilated patients. Most patients are diagnosed using inferential evidence of infection, such as persistent pyrexia despite antibiotics, raised serum C-reactive protein and the presence of individual risk factors. Amphotericin B and fluconazole are the most commonly used anti-fungals dependent on the identity of the fungus. Most of these infections are endogenous; however, a proportion may be caused via the hands of healthcare staff or contaminated medical equipment.
Insights
Fungal infections, primarily from Candida species, are common in intensive care units (ICUs). Diagnosis is challenging, often relying on indirect signs and risk factors in critically ill patients.
Area of Science:
- Critical Care Medicine
- Mycology
- Infectious Diseases
Background:
- Fungal infections are a growing concern in critically ill patients.
- Candida species are the leading cause of these infections in intensive care units (ICUs).
- Risk factors include severe illness, prolonged antibiotic use, and intravascular catheters.
Purpose of the Study:
- To highlight the prevalence and diagnostic challenges of fungal infections in ICU patients.
- To discuss common causative agents and risk factors.
- To outline current diagnostic and treatment approaches.
Main Methods:
- Review of clinical presentation and diagnostic criteria for fungal infections in ICU settings.
- Analysis of common risk factors and predisposing conditions.
- Discussion of antifungal agents and treatment strategies.
Main Results:
- Clinical diagnosis is often difficult due to nonspecific signs and superficial colonization.
- Inferential evidence, such as persistent fever and elevated C-reactive protein, guides diagnosis.
- Amphotericin B and fluconazole are primary antifungal treatments, chosen based on fungal identity.
Conclusions:
- Fungal infections, particularly Candida, pose a significant threat to critically ill patients.
- Early and accurate diagnosis is crucial but challenging.
- Effective management involves risk factor identification and appropriate antifungal therapy.
Related Concept Videos
Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic
HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies. Common...
Pneumonia III: Complications and Assessment
Acute Respiratory Failure-I
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...
Cryptococcal Meningitis
Candidiasis
Antifungal Agents

