Candida colonization index and subsequent infection in critically ill surgical patients: 20 years laterReport as inadecuate

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Intensive Care Medicine

, Volume 40, Issue 10, pp 1429–1448

First Online: 17 June 2014Received: 20 March 2014Accepted: 23 May 2014


IntroductionFor decades, clinicians dealing with immunocompromised and critically ill patients have perceived a link between Candida colonization and subsequent infection. However, the pathophysiological progression from colonization to infection was clearly established only through the formal description of the colonization index CI in critically ill patients. Unfortunately, the literature reflects intense confusion about the pathophysiology of invasive candidiasis and specific associated risk factors.

MethodsWe review the contribution of the CI in the field of Candida infection and its development in the 20 years following its original description in 1994. The development of the CI enabled an improved understanding of the pathogenesis of invasive candidiasis and the use of targeted empirical antifungal therapy in subgroups of patients at increased risk for infection.

ResultsThe recognition of specific characteristics among underlying conditions, such as neutropenia, solid organ transplantation, and surgical and nonsurgical critical illness, has enabled the description of distinct epidemiological patterns in the development of invasive candidiasis.

ConclusionsDespite its limited bedside practicality and before confirmation of potentially more accurate predictors, such as specific biomarkers, the CI remains an important way to characterize the dynamics of colonization, which increases early in patients who develop invasive candidiasis.

KeywordsCandida albicans Candidemia Invasive candidiasis Colonization Colonization index Empirical treatment Nosocomial infections  Download fulltext PDF

Author: Philippe Eggimann - Didier Pittet


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