Oladele Rita O, Bakare Rashidi A, Petrou Michael A, Oduyebo Oyinlola O, Richardson Malcolm
Department of Medical Microbiology and Parasitology, University College Hospital, Nigeria.
Department of Microbiology, Hammersmith Hospital, Imperial College, London.
Afr J Lab Med. 2014 Aug 6;3(1):89. doi: 10.4102/ajlm.v3i1.89. eCollection 2014.
Candidaemia is a widely-studied and reviewed topic in the developed world; however, there is a dearth of information on nosocomial candidaemia in Nigeria, despite the increasing use of more invasive therapeutic modalities, immunosuppressive agents and increasing incidence of immunosuppression as a result of malignancies and HIV.
To determine the hospital-based frequency of candidaemia in a tertiary hospital in Ibadan, Nigeria.
This was a prospective descriptive study which included 230 immunosuppressed patients. All isolates were identified to the species level using both conventional and automated methods. Thereafter, all species isolated were tested for antifungal susceptibility using the broth microdilution method.
Candidaemia occurred in 12 (5.21%) of the 230 study patients, with accounting for 50% of the infections. Four patients (33.3%) presented with , one (8.3%) with and one (8.3%) with a mixed infection of and . All 12 isolates were sensitive to fluconazole (minimal inhibitory concentration < 8 mg/mL). Univariate analysis revealed that old age, multiple surgeries and long-term hospitalisation were significant contributing factors for the occurrence of candidaemia. Eleven (91.7%) of the 12 patients with candidaemia had colonisation of other sterile sites including the bladder, peritoneum and trachea. Furthermore, bivariate analysis revealed that mucositis ( = 0.019) and diarrhoea ( = 0.017) were significantly associated with an increased risk of candidaemia. The crude mortality rate of candidaemia was 91.7%.
This study highlights the significance of nosocomial candidaemia and the need for proactive laboratory investigation and clinical management of this life-threatening disease.
念珠菌血症在发达国家是一个经过广泛研究和综述的课题;然而,尽管尼日利亚更多侵入性治疗方式、免疫抑制剂的使用日益增加,且由于恶性肿瘤和艾滋病毒导致免疫抑制的发生率上升,但关于该国医院内念珠菌血症的信息却很匮乏。
确定尼日利亚伊巴丹一家三级医院基于医院的念珠菌血症发生率。
这是一项前瞻性描述性研究,纳入了230名免疫抑制患者。所有分离株均使用传统方法和自动化方法鉴定到种水平。此后,使用肉汤微量稀释法对所有分离出的菌种进行抗真菌药敏试验。
230名研究患者中有12名(5.21%)发生念珠菌血症,其中白色念珠菌占感染的50%。4名患者(33.3%)表现为白色念珠菌感染,1名(8.3%)为热带念珠菌感染,1名(8.3%)为白色念珠菌和热带念珠菌混合感染。所有12株分离株对氟康唑敏感(最低抑菌浓度<8mg/mL)。单因素分析显示,高龄、多次手术和长期住院是念珠菌血症发生的重要促成因素。12名念珠菌血症患者中有11名(占91.7%)在包括膀胱、腹膜和气管在内的其他无菌部位有白色念珠菌定植。此外,双因素分析显示,粘膜炎(P = 0.019)和腹泻(P = 0.017)与念珠菌血症风险增加显著相关。念珠菌血症的粗死亡率为91.7%。
本研究强调了医院内念珠菌血症的重要性以及对这种危及生命的疾病进行积极实验室检查和临床管理的必要性。