Antimicrobial stewardship (AMS) is an important means to control bacterial resistance. The unique situation of intensive care unit (ICU) poses a challenge to AMS. This article reviews the literature on AMS in the ICU at home and abroad in recent years, and summarizes the related measures of AMS. Effective AMS measures in the ICU include setting up a multidisciplinary AMS team, using rapid microbial diagnosis technology to shorten the time of diagnosis, using non-culture methods to assess the necessity of antimicrobial therapy for patients with suspected sepsis, and evaluating the effectiveness of antimicrobial therapy as early as possible and optimizing it. These initiatives aim to increase the rational use of antimicrobials in ICU, reduce the risk of multidrug-resistant infections, and improve patients’ condition.
ObjectiveTo analyze the trend of hospital infection, so as to provide a scientific basis for hospital infection prevention and control. MethodsFrom 2011 to 2013, according to the criteria of diagnosis of nosocomial infections set up by the Ministry of Health, the prevalence rates of nosocomial infections in patients who were hospitalized on the survey day were investigated by the combination of bedside investigation and medical records checking. ResultsThe incidence rates of nosocomial infections from 2011 to 2013 were 2.99%, 2.31% and 1.95%, respectively, presenting a downward trend. The rate of hospital infection was the highest in comprehensive Intensive Care Unit, and the main infection site was the lower respiratory tract. Gram-negative bacteria were the main pathogens causing hospital infections, including Klebliella pnermoniae, Pseudomonas aeruginosa, Staphylococcus aureus, Acinetobacter baumannii and Escherichia coli. The utilization rates of antibacterial agents in these three years were respectively 39.84%, 34.58% and 34.22%. ConclusionTargeted surveillance and management of key departments and sites should be strengthened. It is necessary to strengthen the surveillance and management of antibiotics, raise the submission rate of pathogens, and use antibiotics appropriately.
目的 了解我院住院患者抗菌药物的临床应用现状及存在问题，为临床合理使用抗菌药物提供参考。 方法 采用回顾性调查方法，对本院2008年11月-2009年4月的出院病历资料进行统计、分析。 结果 共调查病历1 000份，抗菌药物总使用率58.70％；其中预防用药使用率62.35％，治疗用药使用率37.65％；联合用药的比例为37.31％；不合理用药占19.76%。 结论 抗菌药物使用率较高，且使用存在一些不合理现象。医院应加强监管，对存在的问题应制订相应措施。
Improving the rate of pathogen examination before antibiotic treatment is of great significance for clarifying pathogen diagnosis and curbing bacterial resistance, and is also one of the important goals for improving national medical quality and safety. In response to the current problem of low pathogen examination rates, Chengdu Women’s and Children’s Central Hospital adopts a FOCUS-PDCA model, has explored measures such as current situation investigation, root cause analysis, intervention plan formulation, countermeasure implementation, and effect evaluation to improve the rate of pathogen examination before antibiotic treatment in inpatients. This article mainly elaborates on the above model, which has practical significance for ensuring the rational use of antibiotics in inpatients.
ObjectivesTo systematically review the efficacy of prophylactic antimicrobial use on preventing infections after arthroscopy.MethodsPubMed, EMbase, The Cochrane Library, CNKI, CBM and WanFang Data databases were electronically searched to collect clinical studies on the efficacy of prophylactic antimicrobial use on preventing infections after arthroscopy from January 1990 to September 2020. Two reviewers independently screened literature, extracted data and assessed risk of bias of included studies; then, meta-analysis was performed by using RevMan 5.3 software and Stata 15.0 software.ResultsA total of 8 retrospective cohort studies and 1 randomized controlled trial involving 60 136 subjects were included. The results of the meta-analysis showed that: there was no difference in the post-operational infection rate among patients with and without antimicrobial prophylaxis for arthroscopies (OR=0.51, 95%CI 0.25 to 1.04, P=0.06). For knee arthroscopies, the post-operational infection rate had no difference between patients with and without antimicrobial prophylaxis (OR=0.89, 95% CI 0.65 to 1.23, P=0.48). However, for shoulder arthroscopies, the post-operational infection rate in the antimicrobial prophylaxis group was significantly lower than that in the group without the antimicrobial prophylaxis(OR=0.18, 95%CI 0.08 to 0.37, P<0.000 01).ConclusionsCurrent evidence shows that there is no association between preoperative antimicrobial prophylaxis and a decreased infection rate for knee arthroscopies. Antimicrobial prophylaxis appears to lead to fewer infections after shoulder arthroscopies. Due to the limited quality and quantity of the included studies, more high-quality studies are required to verify above conclusions.
目的 了解国内妊娠期抗菌药物的应用现状。 方法 通过检索1994年－2012年国内医学文献，筛选出妊娠期间使用抗菌药物的原始病例报道，对收集的病例按照用药原因、抗菌药物品种、妊娠安全性分级进行统计分析。其中妊娠安全性分级是根据美国药物和食品管理局（FDA）颁布的药物危害等级标准，分为A、B、C、D、X级。 结果 妊娠期使用抗菌药物的常见原因为泌尿系统感染，选用的抗菌药物以头孢菌素和青霉素类为主（B类），但仍有部分病例选用C类、D类药物及超说明书用药。 结论 存在妊娠期抗菌药物不合理应用现象，妊娠合并感染性疾病需用抗菌药物时，医生应权衡抗菌药物对胎儿的可能危害及对母体的治疗作用，最大限度地避免用药对胎儿造成不良影响。
Peptidoglycan is an important component of bacterial cell wall, which plays an important role in maintaining the integrity of bacterial cell structure, stimulating immune response, and anti-infection. Peptidoglycan recycling is an indispensable process for bacterial cell growth and reproduction. In recent years, it has been reported that the peptidoglycan recycling is closely related to the occurrence and development of bacterial resistance, especially with the antibacterial activity of β-lactam antibiotics. In this paper, the relationship between peptidoglycan recycling and resistance is described by combining relevant reports and taking Mycobacterium tuberculosis and Pseudomonas aeruginosa as examples, so as to promote the understanding of bacterial resistance mechanisms and provide potential targets for the development of new antimicrobial drugs.
目的:了解我院外科围手术期患者抗菌药物的应用情况。方法:对我院2008年10月至12月200例外科围手术期患者(Ⅰ类切口80例。Ⅱ类切口120例)的用药情况进行回顾性分析。结果:Ⅱ类切口手术中头孢菌素类应用频率最高,其次为林可霉素类、青霉素类、喹诺酮类、大环内酯类、硝基咪唑类、氨基糖苷类。结论:应强化医师围手术期预防性应用抗菌药物的合理化意识,以便有效地降低围手术期切口的感染率,降低患者治疗费用。
Objective To clarify the bacterial spectrum and drug resistance of different biliary diseases through bile culture results. Methods Patients who underwent surgical treatment and retained bile for cultivation at the Chinese PLA General Hospital between January 2015 and December 2016 were retrospectively collected. Clinical data such as bile bacterial culture and antibiotic sensitivity results, surgical reasons, and perioperative complications were recorded. Results A total of 272 patients were included, including 142 males and 130 females, aged (53.4 ± 14.1) years old. Intrahepatic and extrahepatic bile duct stones were the most common surgical cause, accounting for 32.4%. The positive rate of bile culture in benign diseases was 78.7%, which was higher than that in malignant diseases (48.5%). The infection related complications (30.0% vs. 6.7%), bile leakage rate (20.8% vs. 6.7%), and poor wound healing rate (24.0% vs. 0.0%) in the bile culture positive group were higher than those in the bile bacteria culture negative group (P<0.05). Among 183 patients with positive bile bacterial culture, a total of 294 strains of pathogenic bacteria were detected. There were 96 patients with single bacterial infection, 66 patients with two bacterial infections simultaneously, 18 patients with three bacterial infections, and 3 patients with four or more bacterial infections. Escherichia coli was the most common bacterium, accounting for 17.0%. There were differences in the positive rate of bile culture among patients with different etiologies (P<0.05). There were significant differences in the sensitivity rate of Enterococcus faecalis and Enterococcus faecalis for many antibacterial drugs. Conclusions There are differences in the positive rate of bacterial culture in the biliary tract of patients with different etiologies, and there is a possibility of mixed infection. It is necessary to select appropriate antibiotics for empirical treatment based on different etiologies. The use of antibiotics should be changed in a timely manner based on the results of bile culture.
ObjectiveTo understand the characteristics of and risk factors for nosocomial infection in a newly built branch of a university teaching hospital, in order to investigate the control measures for prevention and control of nosocomial infection. MethodsA total of 598 cases of nosocomial infection from April 2012 to June 2014 were enrolled in this study. We analyzed statistically such indexes as nosocomial infection rate, infection site, pathogen detection, and use of antibiotics. Meantime, infection point-prevalence survey was introduced by means of medical record checking and bedside visiting. ResultsAmong all the 44 085 discharged patients between April 2012 and June 2014, there were 598 cases of nosocomial infection with an infection rate of 1.36%. Departments with a high nosocomial infection rate included Intensive Care Unit (ICU) (9.79%), Department of Orthopedics (2.98%), Department of Geriatrics (2.62%), and Department of Hematology (1.64%). The top four nosocomial infection sites were lower respiratory tract (45.32%), urinary tract (13.21%), operative incision (8.86%), and blood stream (8.86%). The samples of 570 nosocomial infections were delivered for examination with a sample-delivering rate of 95.32%. The most common pathogens were acinetobacter Baumanii (17.02%), Klebsiella pneumoniae (14.21%), Escherichia coli (13.68%), Pseudomonas aeruginosa (11.93%), and Staphylococcus aureus (9.12%). And urinary tract intubation (42.81%), admission of ICU (28.60%), and application of corticosteroid and immunosuppressive agents (26.42%) were the top three independent risk factors for nosocomial infection. ConclusionGeneral and comprehensive monitoring is an effective method for the hospital to detect high-risk departments, factors and patients for nosocomial infection, providing a theoretical basis for prevention and control of nosocomial infection.