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Chinese Journal of Mycology 2020, Vol. 15  Issue (1): 15-21.

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Clinical distribution of yeast infection in aseptic parts of patients with liver disease and sensitivity analysis of antifungal drugs

ZHANG Jing-xia1,3, CUI En-bo1, ZHANG Ju-ling1, GUO Li-na2, XU Ying-chun2, QU Fen1   

  1. 1. Department of Clinical Laboratory, 302 Hospital of PLA, Beijing 100039, China;
    2. Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China;Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases(BZ0447), Beijing 100730, China;
    3. Department of Clinical Laboratory, Aviation General Hospital, Beijing 100020, china
  • Received:2019-07-25 Online:2020-02-28 Published:2020-02-28

Abstract:

Objective Invasive yeast infection is closely related to the infection rate of patients with low immunity such as intensive care unit and organ transplantation. This study analyzed the clinical distribution characteristics of yeast infection in the sterile site, and analyzed the in vitro antifungal activity of seven drugs. Methods The minimum inhibitory concentration (MIC) of 188 yeast strains collected from the 302th hospital of PLA from 2012 to 2017 was determined. The clinical distribution characteristics of 188 yeasts were analyzed. Results Candida albicans (45.7%) is the main yeast causing infection in the aseptic site of patients with liver disease, followed by Candida tropicalis (18.1%) and Candida glabrata (16.0%), and the infected site is mainly ascites fluid (39.9%); Mainly between 50 and 65 years old (43.6%), and mainly patients were male (70.7%). Candida glabrata is the mainly non-Candida albican that causes infection in the age of 50-65 years; drug sensitivity test demonstrated that the MIC50 of itraconazole against Candida albicans was 0.25 μ g/mL and MIC90 was 0.5 μ g/mL, while the MIC50 of caspofungin to Candida krusei was 0.25 μ g/mL while MIC90 reached at 0.5 μ g/mL except for Candida albicans on itraconazole the sensitivity is low (19.8%) and the sensitivity of Candida krusei to the caspofungin is low (33.3%), triazole drugs, echinocanins and 5-fluorocytosine have high in vitro antifungal activity against yeast. Conclusion Candida albicans was still the main strain of invasive yeast infection. The infected patients are mainly male. The antifungal drugs have different antifungal activities against Candida albicans and non-Candida albicans. The antifungal drugs should be selected reasonably.

Key words: sterile site, yeast, distribution characteristics, in vitro antifungal activity

CLC Number: