965株创面感染病原菌分布及耐药性

Distribution and antimicrobial resistance of 965 pathogenic strains from wound infection

目的分析创面感染病原菌的分布及耐药性,为临床治疗创面感染合理用药及减少耐药菌产生提供科学依据。方法对某院2011年6月—2014年4月患者创面感染标本中检出的病原菌资料进行回顾性分析。结果创面标本中共检出965株病原菌,感染部位以四肢为主(50.47%);科室分布以骨外科为主(44.97%);感染诊断以创伤及切口感染较多,分别占47.98%、36.48%。检出的病原菌中革兰阳性菌占37.20%,革兰阴性菌占59.59%,真菌占3.21%。主要革兰阳性菌对万古霉素、替考拉宁和利奈唑胺高度敏感,主要革兰阴性菌对头孢哌酮/舒巴坦、哌拉西林/他唑巴坦、亚胺培南和美罗培南敏感度较高外,对大多数常用的抗菌药物均有较高的耐药率。结论创面感染患者主要来源于骨科,以创伤与手术切口感染为主,且常见革兰阳性及阴性菌的耐药率均较高。外科医生尤其是骨科医生应加强病原菌培养及药敏监测,合理选用抗菌药物,同时加强手术部位感染的防控,以降低感染率和减少耐药菌的发生。

Objective To analyze the distribution and antimicrobial resistance of pathogenic strains in wound infection,and provide scientific evidence for rational use of antimicrobial agents in treatment of wound infection as well as reducing the emergence of drug-resistant organisms.Methods Data about pathogenic strains isolated from wound specimens of patients with wound infection in a hospital between June 2011 and April 2014 were analyzed retrospectively.Results A total of 965 pathogenic strains were isolated from wound specimens,the main infection sites were limbs（50.47%）;infected patients mainly distributed in department of orthopaedic surgery（44.97%）;trauma and incisional wound infection were the major infection types（47.98%,36.48%,respectively）.Among isolated pathogens,gram-positive bacteria,gram-negative bacteria,and fungi accounted for 37.20%,59.59%,and3.21% respectively.The main gram-positive bacteria were highly susceptible to vancomycin,teicoplanin,and linezolid,the main gram-negative bacteria were highly resistant to most commonly used antimicrobial agents except cefoperazone/sulbactam,piperacillin/tazobactam,imipenem,and meropenem.Conclusion Patients with wound infection are mainly distributed in department of orthopedics,the main infection types are trauma and surgical site infection,antimicrobial resistant rates of the major gram-positive and gram-negative bacteria are both high.Surgeons,especially orthopedics surgeons,should pay attention to the culture of pathogens and monitoring of antimicrobial susceptibility,use antimicrobial agents rationally,and strengthen the prevention and control of surgical site infection,so as to reduce the infection incidence and occurrence of drug-resistant organisms.