Razzaghi R, Momen-Heravi M, Erami M, Nazeri M
Department of Infectious Diseases, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran.
Curr Med Mycol. 2016 Sep;2(3):20-26. doi: 10.18869/acadpub.cmm.2.3.20.
species are considered a common cause of fungal blood stream infections, which are associated with considerable mortality and morbidity rates, especially in the admitted and immunocompromised patients. Despite the increase in new and available antifungal agents, the emergence of resistant strains is growing. Regarding this, the aim of the present study was to assess the fungal epide-miology of candidemia and the antifungal susceptibility patterns against five current antifungal agents among the patients with prolonged fever, who were admitted to Beheshti Educational Hospital, Kashan, Iran.
This cross-sectional study was conducted on 253 hospitalized patients with prolonged fever despite receiving broad-spectrum antibiotic therapy. Blood samples were collected aseptically, and then cultured using an automated blood culture system and conventional broth culture bottle. isolates were identified at species level using morphological and physiological properties and produced color on the CHROMagar Candida. Furthermore, the antifungal susceptibility testing was performed using (CLSI M27-A3 and CLSI M27-S4) broth microdilution methods.
The most positive cultures were detected by the automated blood culture system. (%50) was the most prevalent species, followed by (%40), and , (%10) respectively .The mortality rate was high (%60) and most patients with candidemia were admitted to the Intensive Care Unit and Neonatal Intensive Care Unit. All isolates were susceptible to amphotericin B, while the highest resistance belonged to caspofungin.
In this study, high resistance was reported, especially for caspofungin, which can be regarded as the emergence of caspofungin-resistant strains. Regarding this, the establishment of a surveillance and prevention program for the reduction of the emergence of resistant species is necessary.
念珠菌属被认为是真菌血流感染的常见病因,这类感染与相当高的死亡率和发病率相关,尤其是在住院患者和免疫功能低下患者中。尽管新型抗真菌药物不断涌现,但耐药菌株的出现却日益增多。鉴于此,本研究旨在评估伊朗卡尚市贝赫什提教育医院收治的长期发热患者中念珠菌血症的真菌流行病学情况以及对五种当前抗真菌药物的抗真菌药敏模式。
本横断面研究针对253例尽管接受了广谱抗生素治疗仍长期发热的住院患者开展。无菌采集血样,然后使用自动血培养系统和传统肉汤培养瓶进行培养。念珠菌分离株通过形态学和生理学特性在种水平上进行鉴定,并在科玛嘉念珠菌显色培养基上显色。此外,采用(美国临床和实验室标准协会M27 - A3和M27 - S4)肉汤微量稀释法进行抗真菌药敏试验。
自动血培养系统检测到的阳性培养物最多。白色念珠菌(50%)是最常见的菌种,其次是热带念珠菌(40%)和光滑念珠菌(10%)。死亡率很高(60%),大多数念珠菌血症患者入住重症监护病房和新生儿重症监护病房。所有分离株对两性霉素B敏感,而对卡泊芬净的耐药性最高。
在本研究中,报告了较高的耐药性,尤其是对卡泊芬净的耐药性,这可被视为卡泊芬净耐药菌株的出现。鉴于此,有必要建立一个监测和预防计划以减少耐药菌种的出现。