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Bio-energetics Investigation of Candida albicans Using Real-time Extracellular Flux Analysis
Published on: March 19, 2019
Multifocal candidiasis can be considered a form of invasive candidiasis in critically non-neutropenic patients
Jordi Ibañez-Nolla1, Miquel Nolla-Salas2
1Medicine Department, Hospital Sant Rafael, Barcelona, Spain.
Abstract:
Candida infections can be serious in intensive care unit (ICU) patients, as Candida is an organism that specially colonizes the digestive system. In immunocompromised patients, treatment is protocolized, but in non-neutropenic patients, it is not well established. On the other hand, the treatment of this type of infection is not absent of adverse effects. The prevalence of fungal infections, especially candidiasis, and its mortality in the ICU is high, mainly due to the lack of diagnosis and absence of treatment criteria, because they are often detected in the disseminated candidiasis phase, such as candidemia. One of the indicators of the progression of the disease is the presence of Candida in more than two different foci, named Candida multifocality, within the concept of invasive candidiasis. In fact, the invasive fungal diseases in adult patients i intensive care unit (FUNDICU) project was created to optimize the management of candidiasis. The management of candidiasis in ICU patients first requires the identification of patients at high risk of candidiasis, which must be performed based on the evidence of immune dysregulation, higher severity index (acute physiologic assessment and chronic health evaluation and multiple organ dysfunction syndrome), long ICU stays or other factors such as mechanical ventilation or us of broad-spectrum antibiotics. To increase detection and dispense the appropriate antifungal at an early stage, it is necessary to include the concept of multifocality in invasive candidiasis with screening of different foci. Antifungal treatment reduces mortality both overall and attributable to Candida. Detecting a high invasive candidiasis risk is a patient safety concept and should be treated as such. Identifying patients (critically non-neutropenic adult patients with severe multiple organ dysfunction syndrome and the first isolation of Candida spp. in a study sample of possible secondary infection) and demonstrating invasive candidiasis (multifocal or disseminated) require urgent initiation of antifungal treatment to minimize mortality attributable to invasive candidiasis in the ICU and eliminate mortality rates above 50%.
Insights
Early detection and treatment of invasive candidiasis in intensive care unit (ICU) patients, especially non-neutropenic ones, are crucial. Identifying high-risk patients and multifocal Candida infections can significantly reduce mortality.
Area of Science:
- Critical Care Medicine
- Infectious Diseases
- Mycology
Background:
- Candida infections pose a significant threat in intensive care units (ICUs), particularly in non-neutropenic patients where treatment protocols are less established.
- High mortality rates in ICUs are linked to delayed diagnosis and treatment of candidiasis, often detected late in disseminated stages like candidemia.
- Candida multifocality, presence in over two foci, indicates disease progression within invasive candidiasis.
Purpose of the Study:
- To optimize the management of candidiasis in adult intensive care unit (ICU) patients.
- To establish criteria for identifying high-risk patients for candidiasis.
- To emphasize the importance of early detection and treatment of invasive candidiasis, including multifocal presentations.
Main Methods:
- Identifying high-risk patients based on immune dysregulation, severity scores (APACHE, SOFA), prolonged ICU stay, mechanical ventilation, and broad-spectrum antibiotic use.
- Screening for Candida multifocality by examining multiple infection foci to improve early detection.
- Implementing urgent antifungal treatment upon identification of invasive candidiasis (multifocal or disseminated) in at-risk patients.
Main Results:
- Antifungal treatment demonstrably reduces both overall and Candida-attributable mortality.
- Early detection and treatment of invasive candidiasis, particularly multifocal forms, are vital for patient safety and reducing mortality.
- Urgent antifungal therapy in critically ill, non-neutropenic patients with severe organ dysfunction and positive Candida cultures can eliminate mortality rates exceeding 50%.
Conclusions:
- A proactive approach to managing invasive candidiasis in ICUs is essential, focusing on early risk assessment and prompt treatment.
- Incorporating the concept of multifocality into invasive candidiasis screening aids in timely diagnosis and intervention.
- Effective management strategies, including early antifungal administration, are critical to reducing the high mortality associated with invasive candidiasis in the ICU setting.
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