Related Experiment Video
Updated: May 28, 2026

An Ex vivo Assay to Study Candida albicans Hyphal Morphogenesis in the Gastrointestinal Tract
Published on: July 1, 2020
Antifungal use influences Candida species distribution and susceptibility in the intensive care unit
Pierre Fournier1, Carole Schwebel, Danièle Maubon
1Parasitology-Mycology Laboratory, Infectious Agent Department, Albert Michallon University Hospital and Joseph Fourier University, Grenoble, France. pfournier@chu-grenoble.fr
Objectives:
Antifungal prescription practices have changed over the last decade, and the impact of these changes is unclear. Our objective here was to evaluate the effect of antifungal drug use on the distribution and drug susceptibility of Candida spp. in a French intensive care unit (ICU).
Methods:
Antifungal drug use was measured as the number of defined daily doses per 1000 hospital days (DDDs/1000HD). The distribution of Candida spp. over a 6 year period (2004-09) and the MICs of antifungal drugs over 2007-09 were determined. Statistical analyses were performed to assess relationships between antifungal drug use, Candida spp. distribution and MIC changes over time.
Results:
Of 26,450 samples from 3391 patients, 1511 were positive for Candida spp. Candida albicans predominated (52.5%), followed by Candida glabrata (16.6%) and Candida parapsilosis (7.5%). C. parapsilosis increased significantly, from 5.7% in 2004 to 12.5% in 2009 (P = 0.0005). Caspofungin use increased significantly between 2004 (17.9 DDDs/1000HD) and 2009 (69.9 DDDs/1000HD) (P < 0.0001). Between 2007 and 2009, the increase in caspofungin use correlated significantly with the increase in caspofungin MICs displayed by C. parapsilosis (P < 0.0001) and C. glabrata (P = 0.03). Amphotericin B consumption changed over time and correlated with an increase in amphotericin B MICs for C. albicans (P = 0.0002) and C. glabrata (P = 0.0005). Significant declines occurred in both fluconazole use (P < 0.0001) and fluconazole MICs of C. albicans (P < 0.001)
Conclusions:
Antifungal drug use in the ICU is associated with major changes in the distribution and drug susceptibility of Candida spp.
Insights
Antifungal drug use in intensive care units (ICUs) significantly impacts Candida species distribution and susceptibility. Increased use of certain antifungals correlated with rising minimum inhibitory concentrations (MICs) in Candida isolates.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Clinical Pharmacy
Background:
- Antifungal prescription patterns have evolved over the past decade.
- The clinical impact of these changes on Candida spp. remains unclear.
Purpose of the Study:
- To evaluate the effect of antifungal drug consumption on the distribution and drug susceptibility of Candida species.
- Study conducted in a French intensive care unit (ICU).
Main Methods:
- Measured antifungal drug use in defined daily doses per 1000 hospital days (DDDs/1000HD).
- Determined Candida spp. distribution and antifungal drug minimum inhibitory concentrations (MICs) over a 6-year period (2004-2009).
- Utilized statistical analyses to correlate antifungal use with changes in Candida distribution and MICs.
Main Results:
- Candida parapsilosis distribution significantly increased from 5.7% to 12.5% (2004-2009).
- Increased caspofungin use correlated with higher caspofungin MICs in Candida parapsilosis and Candida glabrata.
- Amphotericin B and fluconazole use also showed correlations with changes in their respective MICs for Candida species.
Conclusions:
- Antifungal drug consumption in ICUs is linked to significant shifts in Candida spp. distribution.
- Changes in antifungal prescribing practices are associated with altered drug susceptibility patterns in Candida isolates.
Related Concept Videos
Candidiasis
Antifungal Agents
Cryptococcal Meningitis
Fungal Phylum Microsporidia
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin create...

