Journal
LIVER TRANSPLANTATION
Volume 18, Issue 9, Pages 1100-1109Publisher
WILEY-BLACKWELL
DOI: 10.1002/lt.23467
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Invasive fungal infections (IFIs) are associated with a high mortality rate for liver transplantation (LT) recipients. To study the incidence of and risk factors for IFIs in LT recipients and the associated mortality rates, we retrospectively reviewed the records of first-time deceased donor LT recipients (January 2003 to December 2007). The incidence of IFIs was 12%. Non-albicans Candida species accounted for 55% of IFIs; 50% of these IFIs were Candida parapsilosis. Only 43% of Candida isolates were fluconazole-susceptible (minimum inhibitory concentration = 8 mu/mL). All C. parapsilosis isolates were fluconazole-resistant, and this coincided with a surge of these isolates during a peak period of LT. Factors associated with IFIs included a creatinine level > 2 mg/mL [hazard ratio (OR) = 2.4, 95% confidence interval (CI) = 1.2-5.0, P = 0.01], a Model for End-Stage Liver Disease score > 25 (OR = 2.4, 95% CI = 1.2-4.9, P = 0.02), pretransplant fungal colonization (OR = 7.0, 95% CI = 3.2-15.3, P < 0.001), and a daily prophylactic fluconazole dosage < 200 mg (OR = 2.8, 95% CI = 1.1-7.4, P = 0.03). According to a multivariate analysis, only pretransplant fungal colonization was associated with IFIs (OR = 7.8, 95% CI = 3.9-16.2, P < 0.001). The 1-year patient survival rates with and without IFIs were 41% and 80%, respectively, and the survival rates with C. parapsilosis, other non-albicans Candida, and Candida albicans IFIs were 28%, 50%, and 75%, respectively. In conclusion, IFIs after LT (especially non-albicans Candida species and fluconazole-resistant C. parapsilosis) were associated with reduced survival. The risk factors highlight the importance of pretransplant risk assessments. The identification of pretransplant fungal colonization may allow for risk modifications before or at the time of LT. Additionally, the number of LT procedures and prophylactic strategies may affect institutional outbreaks of resistant Candida strains. Liver Transpl, 2012. (C) 2012 AASLD.
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