Evaluation of Candida colonization and use of the Candida Colonization Index in a paediatric Intensive Care Unit: a

Yasemin Ay Altintop1, Ayse Betul Ergul2, Ayse Nedret Koc3

  • 1Department of Microbiology, Health Science University of Kayseri Training and Research Hospital, Kayseri, Turkey.

Insights

The Candida colonization index (CI) shows 100% specificity and negative predictive value, effectively ruling out invasive fungal disease in children. However, its low sensitivity and positive predictive value limit its reliability for forecasting candidiasis in pediatric intensive care units.

Area of Science:

  • Medical Mycology
  • Infectious Diseases
  • Critical Care Medicine

Background:

  • Invasive candidiasis is a significant cause of morbidity and mortality, particularly in intensive care units.
  • The Candida colonization index (CI) is utilized as an early warning tool for invasive candidiasis.

Purpose of the Study:

  • To evaluate the utility of the Candida colonization index (CI) in predicting invasive candidiasis in children.
  • To assess the CI's forecasting capability in a medical pediatric intensive care unit (PICU) setting.

Main Methods:

  • Prospective study of 87 pediatric patients (1 month to 16 years) in a medical PICU.
  • Cultures (swab, urine, blood) performed weekly; CI calculated based on colonization.
  • Inclusion criteria: no antifungal therapy, expected PICU stay >7 days, no recent PICU history.

Main Results:

  • Candida spp. grew in 576 cultures; C. albicans was the most common isolate (64.5%).
  • Invasive candidiasis occurred in 4 patients (3 C. albicans, 1 C. parapsilosis).
  • CI demonstrated 100% specificity and 100% negative predictive value, but only 33.73% sensitivity and 6.7% positive predictive value.

Conclusions:

  • The CI is valuable for ruling out invasive fungal disease in pediatric intensive care units due to its high specificity and negative predictive value.
  • Low sensitivity and positive predictive value indicate the CI is less reliable for forecasting invasive candidiasis in this pediatric population.

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