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An Ex vivo Assay to Study Candida albicans Hyphal Morphogenesis in the Gastrointestinal Tract
Published on: July 1, 2020
Clinical aspects of invasive candidiasis in the surgical patient
1Department of Surgery, Division of General Surgery and Organ Transplantation, Catholic University, Policlinico A. Gemelli, Rome, Italy. gsganga@tiscali.it
Abstract:
Improvements in post-surgical care have led to decreased mortality, but to an increased number of critically ill surgical patients at high risk of fungal colonization and invasive disease. Use of catheters, enteral nutrition, antibacterials and haemodialysis add to the risk. Although Candida albicans remains the most common species causing invasive candidiasis in the post-surgical setting, there has been an increase in the prevalence of non-albicans species associated with the increased use of fluconazole prophylaxis in surgical intensive care units. The prompt diagnosis of candidiasis is complicated by a lack of specific clinical symptoms and difficulties in laboratory diagnosis; therefore, it is vital to recognize at-risk patients and initiate therapy promptly in these individuals. While Candida scoring systems to identify at-risk patients have been developed, these need to be validated in prospective interventional trials. Newer azole and echinocandin antifungal agents have expanded the range of available treatments, and prophylactic antifungal therapy in at-risk, critically ill surgical patients has been shown to be effective.
Insights
Critically ill surgical patients face a higher risk of invasive fungal infections, particularly candidiasis. Early recognition and prompt antifungal therapy are crucial for effective management and improved outcomes.
Area of Science:
- Infectious Diseases
- Critical Care Medicine
- Mycology
Background:
- Post-surgical care advances reduce mortality but increase critically ill patients susceptible to fungal colonization and invasive disease.
- Risk factors include catheter use, nutritional support, antibiotics, and dialysis, alongside a rise in non-albicans Candida species due to fluconazole prophylaxis.
Purpose of the Study:
- To highlight the challenges in diagnosing and managing invasive candidiasis in critically ill surgical patients.
- To emphasize the importance of identifying at-risk patients and initiating timely antifungal therapy.
Main Methods:
- Review of current literature on invasive candidiasis in post-surgical intensive care units.
- Discussion of diagnostic challenges, risk factors, and emerging treatment strategies.
Main Results:
- Candida albicans is common, but non-albicans species are increasing, complicating treatment.
- Diagnostic delays are frequent due to non-specific symptoms and laboratory difficulties.
- Prophylactic antifungal therapy in high-risk patients shows efficacy.
Conclusions:
- Prompt diagnosis and treatment of invasive candidiasis in at-risk surgical patients are vital.
- Further validation of Candida scoring systems in prospective trials is needed.
- Newer antifungal agents and prophylactic strategies offer improved management options.
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