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Volume 16 Supplement 3

Sepsis 2012

Candida score: a predictor of mortality in patients with candidemia

Background

Candidemia is becoming increasingly widespread, especially in the ICU setup. The Candida score has been developed and used for identifying patients at risk for developing candida infections. However, its usefulness in predicting outcome of patients with candidemia has not been evaluated. We aimed to determine the risk factors for mortality in patients with candidemia admitted to an Indian medical ICU.

Methods

An 18-month retrospective cohort analysis including 56 patients with candidemia was conducted. Baseline patient characteristics, ICU course and outcome were noted in a predesigned pro forma. The Candida score was calculated as previously described [1]. The primary outcome measure was ICU mortality.

Results

Out of 3,142 ICU admissions, the incidence of candidemia was 17.8/1,000 admissions. Fifteen patients had co-existing candiduria with the same species. The mean interval between ICU admission and candidemia was 12.9 ± 14.4 days. Candida albicans was isolated in only 21.4% of blood Candida-positive cultures. Among the nonalbicans species C. tropicalis was the commonest species isolated from 28.6% isolates, followed by C. glabrata that was isolated from seven (12.5%) patients. In 8.9% of candidemia patients, the only measure taken was removal of the indwelling catheter, but the rest of the patients required antifungal drugs. Among the patients with candidemia, 53.6% required vasopressor support, 41.1% required renal replacement therapy and 64.3% required mechanical ventilation during their ICU stay. The mean length of ICU stay was 22.9 ± 28 days and the mean hospital stay was 30.1 ± 30.2 days. Crude ICU mortality was 33.93%. There was no statistically significant difference between mortality rates of patients with C. albicans and nonalbicans candidemia (P = 0.732). Patient parameters such as age, admission APACHE II score, candida score, previous antifungals and underlying co-morbidities, which were statistically significant in differentiating survivors and nonsurvivors in the univariate analysis (Table 1), were included in the multivariate analysis. Only two factors, previous antifungals (P = 0.004, OR = 101.4, 95% CI = 4.52 to 227.7) and Candida score >3 (P = 0.028, OR = 13.2, 95% CI = 1.3 to 125) were found to be independently predicting mortality.

Table 1 Comparison patient parameters among survivors and nonsurvivors

Conclusion

Candida infection is generally late-onset in ICU patients and is associated with a prolonged ICU and hospital stay, and a high mortality. Candida nonalbicans infection was much more common in our cohort of ICU patients but there was no difference in mortality among patients with C. albicans and nonalbicans infection. Patients who develop candidemia, despite being on antifungals, were at a higher risk of dying and a simple bedside candida score may be useful in predicting mortality of ICU patients with candidemia.

References

  1. León C, Ruiz-Santana S, Saavedra P, Almirante B, Nolla-Salas J, Alvarez-Lerma F, Garnacho-Montero J, León MA, EPCAN Study Group: A bedside scoring system (Candida score) for early antifungal treatment in nonneutropenic critically ill patients with Candida colonization. Crit Care Med 2006, 34: 730-737. 10.1097/01.CCM.0000202208.37364.7D

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Juneja, D., Nasa, P., Singh, O. et al. Candida score: a predictor of mortality in patients with candidemia. Crit Care 16 (Suppl 3), P17 (2012). https://doi.org/10.1186/cc11704

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  • DOI: https://doi.org/10.1186/cc11704

Keywords

  • Candida Infection
  • Retrospective Cohort Analysis
  • Candida Score
  • Simple Bedside
  • Candidemia Patient