Antunes Ana Graciela Ventura, Pasqualotto Alessandro Comarú, Diaz María Cristina, d'Azevedo Pedro Alves, Severo Luiz Carlos
Microbiology Department, Fundação Faculdade Federal de Ciências Médicas, Porto Alegre, RS, Brazil.
Rev Inst Med Trop Sao Paulo. 2004 Sep-Oct;46(5):239-41. doi: 10.1590/s0036-46652004000500001. Epub 2004 Oct 22.
Recent studies have shown differences in the epidemiology of invasive infections caused by Candida species worldwide. In the period comprising August 2002 to August 2003, we performed a study in Santa Casa Complexo Hospitalar, Brazil, to determine Candida species distribution associated with candidemia and their antifungal susceptibility profiles to amphotericin B, fluconazole and itraconazole. Antifungal susceptibility was tested according to the broth microdilution method described in the NCCLS (M27A-2 method). Only one sample from each patient was analyzed (the first isolate). Most of the episodes had been caused by species other than C. albicans (51.6%), including C. parapsilosis (25.8%), C. tropicalis (13.3%), C. glabrata (3.3%), C. krusei (1.7%), and others (7.5%). Dose-dependent susceptibility to itraconazole was observed in 14.2% of strains, and dose-dependent susceptibility to fluconazole was found in 1.6%. Antifungal resistance was not found, probably related to low use of fluconazole. Further epidemiological surveillance is needed.
最近的研究表明,全球范围内由念珠菌属引起的侵袭性感染的流行病学存在差异。在2002年8月至2003年8月期间,我们在巴西圣卡塔琳娜综合医院进行了一项研究,以确定与念珠菌血症相关的念珠菌属分布及其对两性霉素B、氟康唑和伊曲康唑的抗真菌药敏谱。根据美国国家临床实验室标准委员会(NCCLS,M27A - 2方法)描述的肉汤微量稀释法检测抗真菌药敏性。每个患者仅分析一个样本(首次分离株)。大多数感染事件是由白色念珠菌以外的菌种引起的(51.6%),包括近平滑念珠菌(25.8%)、热带念珠菌(13.3%)、光滑念珠菌(3.3%)、克柔念珠菌(1.7%)和其他菌种(7.5%)。14.2%的菌株对伊曲康唑表现出剂量依赖性药敏性,1.6%的菌株对氟康唑表现出剂量依赖性药敏性。未发现抗真菌耐药性,这可能与氟康唑的低使用量有关。需要进一步进行流行病学监测。