Lai Chih-Cheng, Chen Chi-Chung, Lu Ying-Chen, Lin Tsuey-Pin, Chuang Yin-Ching, Tang Hung-Jen
Department of Intensive Care Medicine, Chi Mei Medical Center, Liouying.
Department of Medical Research, Chi Mei Medical Center, Tainan.
Infect Drug Resist. 2018 Sep 11;11:1441-1445. doi: 10.2147/IDR.S175257. eCollection 2018.
This study aims to assess the in vitro activity of different cefoperazone-sulbactam ratios against different multidrug-resistant organisms (MDROs).
Minimum inhibitory concentrations (MICs) and susceptibility rates of cefoperazone, sulbactam and cefoperazone-sulbactam at fixed ratios of 2:1, 1:1 and 1:2 against 344 MDRO clinical isolates, including extended-spectrum β-lactamase (ESBL)-producing (n=58), ESBL-producing (n=58), carbapenem-resistant (n=57), carbapenem-resistant (n=49) and carbapenem-resistant (n=122), were measured.
Combined treatment with sulbactam and cefoperazone resulted in decreased MIC values across all MDROs, as well as decreases in most MIC values, except for carbapenem-resistant and carbapenem-resistant (MIC values remained >64 mg/L). Susceptibility rates of treatment with cefoperazone alone against all MDROs were much lower than that of cefoperazone-sulbactam combination (all <0.05), except in carbapenem-resistant . Additionally, the susceptibility rate gradually increased as the ratio of cefoperazone-sulbactam was adjusted from 2:1 to 1:1 and to 1:2 for carbapenem-resistant Enterobacteriaceae, ESBL-producing and carbapenem-resistant . There were no significant ratio-dependent changes in susceptibility rates with cefoperazone-sulbactam in carbapenem-resistant .
Adding sulbactam enhances cefoperazone activity against most MDROs excluding carbapenem-resistant , and the activity of cefoperazone-sulbactam against these MDROs is greatest at a ratio of 1:2, followed by ratios of 1:1 and 2:1.
本研究旨在评估不同头孢哌酮 - 舒巴坦比例对不同多重耐药菌(MDROs)的体外活性。
测定头孢哌酮、舒巴坦以及固定比例为2:1、1:1和1:2的头孢哌酮 - 舒巴坦对344株MDRO临床分离株的最低抑菌浓度(MICs)和药敏率,这些分离株包括产超广谱β - 内酰胺酶(ESBL)的(n = 58)、产ESBL的(n = 58)、耐碳青霉烯类的(n = 57)、耐碳青霉烯类的(n = 49)和耐碳青霉烯类的(n = 122)。
舒巴坦与头孢哌酮联合治疗使所有MDROs的MIC值降低,除耐碳青霉烯类和耐碳青霉烯类外(MIC值仍>64 mg/L),大多数MIC值也降低。单独使用头孢哌酮治疗所有MDROs的药敏率远低于头孢哌酮 - 舒巴坦联合治疗(均<0.05),耐碳青霉烯类除外。此外,对于耐碳青霉烯类肠杆菌科细菌、产ESBL的和耐碳青霉烯类,随着头孢哌酮 - 舒巴坦比例从2:1调整为1:1再到1:2,药敏率逐渐升高。头孢哌酮 - 舒巴坦对耐碳青霉烯类的药敏率没有显著的比例依赖性变化。
添加舒巴坦可增强头孢哌酮对除耐碳青霉烯类外的大多数MDROs的活性,头孢哌酮 - 舒巴坦对这些MDROs的活性在比例为1:2时最大,其次是1:1和2:1的比例。