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Updated: Jun 6, 2026

Colon Ascendens Stent Peritonitis (CASP) - a Standardized Model for Polymicrobial Abdominal Sepsis
Published on: December 18, 2010
[Candida peritonitis]
Alejandro Ubeda1, Ana Loza Vázquez, Cristóbal León Gil
1Hospital Universitario de Valme, Sevilla, España. alejandroubedaintensivos@hotmail.com
Abstract:
Candida spp. is a component of the endogenous flora of the digestive tract and can consequently form part of the etiology of almost any type of abdominal infection. Candida spp. is therefore frequently isolated in polymicrobial secondary peritonitis due to intestinal suture dehiscence. In these cases, there is no clear consensus on when Candida spp. isolation in peritoneal drainage fluid represents infection rather than colonization. The general recommendation is to interpret that there is infection when the sample containing the pathogen is intraoperative or has been obtained directly from the intraabdominal collection. When Candida spp. is cultured in samples from subsequently obtained drainage fluid, colonization is a possibility. However, when these cultures are accompanied by signs of sepsis, the patient shows severity criteria or Candida spp. is repeatedly isolated, most intensivists decide to begin antifungal therapy. This treatment is similar for candidemias, disseminated invasive candidiasis and Candida peritonitis.
Insights
Distinguishing Candida infection from colonization in abdominal infections is challenging. Clinical signs like sepsis or repeated isolation often prompt antifungal treatment, similar to other invasive Candida infections.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Critical Care Medicine
Background:
- Candida species are part of the normal digestive tract flora.
- Candida can cause abdominal infections, particularly secondary peritonitis after intestinal surgery.
- Differentiating Candida colonization from infection in peritoneal fluid is clinically significant.
Purpose of the Study:
- To review the diagnostic challenges of Candida isolation in abdominal infections.
- To discuss criteria for initiating antifungal therapy in such cases.
Main Methods:
- Review of current clinical recommendations and practices.
- Analysis of factors influencing the interpretation of Candida cultures from peritoneal fluid.
Main Results:
- No consensus exists on interpreting Candida isolation in peritoneal drainage fluid.
- Intraoperative or directly collected samples are more indicative of infection.
- Repeated isolation, sepsis signs, or severity criteria often lead to antifungal treatment.
Conclusions:
- Clinical context is crucial for interpreting Candida isolation in abdominal infections.
- Antifungal therapy decisions are guided by signs of invasive disease, similar to candidemia.
- Standardized guidelines are needed for managing Candida in peritoneal infections.
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