Objective To investigate the risk factors of multidrug-resistant organism (MDRO) infection in patients with car accident injuries in intensive care unit (ICU), providing clinical guidance for reducing MDRO infection in car accident patients. Methods The clinical data of patients with car accident injuries in Sichuan Provincial People’s Hospital between January 1st 2019 and February 28th 2023 were collected, and the relevant data were analyzed retrospectively to explore the risk factors of MDRO infection. Results A total of 141 patients with car accident injuries were collected, of whom 30 had MDRO infection. The proportions of males (P=0.012), indwelling catheters (P=0.005), mechanical ventilation (P=0.001), length of hospital stay (P<0.001), and total treatment costs (P<0.001) in the infection group were higher than those in the non-infection group. Multiple logistic regression analysis showed that male [odds ratio (OR)=3.797, 95% confidence interval (CI) (1.174, 12.275), P=0.026], mechanical ventilation [OR=4.596, 95%CI (1.538, 13.734), P=0.006], and length of hospital stay≥20 d [OR=1.014, 95%CI (1.001, 1.028), P=0.037] were independent risk factors for MDRO infection in car accident patients. Conclusions Male, mechanical ventilation, and increased length of hospital stay are independent risk factors for MDRO infection in car accident patients. For such patients, the prevention and control measures of hospital infection should be strictly implemented to reduce the risk of infection.
目的 对烧伤层流病房多重耐药菌感染的相关因素进行分析，通过护理干预来预防和减少烧伤病房多重耐药菌感染的发生。 方法 回顾性分析2011年1月－12月收治的629例烧伤患者，其中发生多重耐药菌感染74例，感染率为11.8%。 结果 感染部位：创面分泌物培养感染占70.2%，痰液标本培养感染占9.4%，血液标本培养感染占16.2%，其他占4.2%。感染病原菌：以金黄色葡萄球菌为主，占77.0%；鲍曼不动杆菌占4.2%，铜绿假单胞菌占10.8%，肺炎克雷伯菌占6.7%，真菌感染占1.3%。 结论 对发生医院内多重耐药菌感染的原因进行分析并及时采取相应的护理干预措施，及可行的医院感染管理控制措施，对烧伤患者预后有重要的意义，可有效降低院内感染率的发生。
ObjectiveTo learn the status quo and characteristics of multi-drug resistant organism (MDRO) infection in a comprehensive hospital of the first grade in Sichuan Province, analyze the effect of prevention and control intervention, in order to provide a scientific basis for clinical MDRO prevention and control. MethodsWe collected MDRO data from January to June 2014 and from January to June 2015 through multi-drug resistance reporting software, and analyzed and compared the infection of MDRO during those two time periods. Then, we evaluated the prevention and control effect of MDRO infection. ResultsThe number of inpatients from January to June 2014 was 24709, among which 813 were detected with MDRO infection. Of those infected patients, 196 had nosocomial infection of MDRO and the other 617 had community infection/colonization. The proportion of nosocomial MDRO infection was 24.10%. The MDRO nosocomial infection case rate was 0.79%. The proportion of community MDRO infection/colonization was 75.90%. The number of inpatients from January to June 2015 was 25329, and 739 of them were found with MDRO infection, of whom 132 had nosocomial infection and 607 community infection/colonization. The proportion of nosocomial MDRO infection was 17.86%. The MDRO nosocomial infection case rate was 0.52%. The proportion of community infection/colonization was 80.14%. Compared with the first half of 2014, the proportion of nosocomial MDRO infection was lower with a statistically significant difference (χ2=9.062, P<0.001), and MDRO nosocomial infection case rate was also significantly lowered (χ2=14.220, P<0.001). There were significant differences between the first half of 2015 and the same period of 2014 in hospital department distribution of MDRO infection, patient infection site distribution and pathogen detection. ConclusionThe nosocomial MDRO infection control situation of our hospital is improved after the comprehensive prevention and control interventions, and we should focus on the prevention and control of key departments, important infection sites and major resistant bacteria in the future MDRO hospital infection control work.
Objective To know the status quo of multidrug-resistant organism (MDRO) infection in primary general hospitals, analyze the differences among various intervention measures, and put forward guiding principles for MDRO infection control in primary general hospitals. Methods We investigated all patients (n=51 612) admitted into the hospital between January 2013 and December 2015, and found out 6 types of MDRO. Pre-interventional investigation was carried out between January 2013 and June 2014 (before intervention) during which no intervention measures were taken; Intervention was carried out between July 2014 and December 2015 (after intervention). All departments in the hospital (6 groups) were matched with intervention measures (6 groups) randomly. Then, we compared the MDRO detection rate, nosocomial infection case rate and intervention compliance rate among the groups. Results We detected altogether 611 MDRO cases (without duplication) out of the 51 612 cases. The total detection rate of MDRO was 1.18%. The detection rate of MDRO before and after intervention was 1.37% and 1.01%, respectively. The difference between the two was of statistical significance (P<0.05). After the intervention, the detection rate in groups 1, 5 and 6 was significantly lower than before (P<0.05); the differences in detection rate among groups 2, 3, and 4 were not significant (P> 0.05). Nosocomial infection rate decreased from 0.28% before intervention to 0.14% after intervention (P<0.05). After the intervention, MDRO nosocomial infection case rate of groups 1, 5 and 6 was significantly lower than before (P<0.05); the rate was lower in groups 3 and 4 than before without any significance (P>0.05); no MDRO cases were detected in group 2 and comparison was meaningless. The knowledge rates of medical workers and of nursing staff increased from 52.97% and 20.00% before intervention to 78.76% and 66.34% after intervention, respectively (χ2=30.670, 38.604;P<0.05). The compliance to all kinds of protection measures improved significantly (P<0.05) except compliances to equipment of hand antiseptic agent and patient transfer order (P> 0.05). Conclusion Promoting the compliance rate to hand hygiene and environmental cleaning and disinfection, primary general hospitals can decrease the detection rate and nosocomial infection case rate of MDRO.
Objective To evaluate the effect of active screening and intervention of multidrug-resistant organisms (MDROs) on control nosocomial infection in the general intensive care unit (ICU). Methods A non-concurrent control trial was conducted in patients hospitalized in the ICU for more than 24 hours in the Second Affiliated Hospital of Fujian Medical University. Patients underwent active screening of MDROs for nasal vestibular swab, throat swab and rectal swab combined with further intensive intervention for patients with positive screening result during Sept. 2014 to Aug. 2015 were included as an intervention group, patients only underwent active screening during Sept. 2013 to Aug. 2014 were included as a screening group, and patients without undergoing active screening during Sept. 2012 to Aug. 2013 were as a control group. SPSS 19.0 software was used to compare the hospital infection rate and the infection rate of MDROs among the three groups. Results A total of 1 773 patients were included, of which 655 patients were in the intervention group, 515 patients were in the screening group, and 603 patients were in the control group. The difference of hospital infection rates among the three groups was statistically significant (χ2=21.087, P < 0.001), and further pairwise comparison results showed that the intervention group was lower than the screening group (χ2=5.891, P=0.015), and the screening group was lower than the control group (χ2=4.259, P=0.039). The adjustment daily infection rate of the intervention group, screening group and control group were 6.69‰, 10.88‰, and 15.39‰, respectively. The difference of MDROs hospital infection rates among the three groups was statistically significant (χ2=21.039, P < 0.001), and further pairwise comparison results showed that the intervention group was lower than the screening group (χ2=5.936, P=0.015), and the screening group was lower than the control group (χ2=5.798, P=0.016). The MDROs thousand daily infection rate of the intervention group was lower than that of the screening group (3.90‰ vs. 7.30‰, χ2=5.999, P=0.014). Conclusion The active screening plus intensive intervention of MDROs can effectively reduce the incidence rates of nosocomial infections and MDROs infections in ICU.
ObjectiveTo evaluate the efficiency of hydrogen peroxide vapor (HPV) in disinfecting multidrug-resistant organisms (MDROs).MethodsWe searched Cochrane Library, PubMed, Embase, Web of Science, China National Knowledge Infrastructure, Wanfang, China Science and Technology Journal Database for before-after studies or case-control studies or cohort studies evaluating efficiency of HPV and published from January 2010 to December 2020 (the time range was from January 2000 to December 2020 in the snowball searching). RevMan 5.4 and R 4.0.2 softwares were used for meta-analysis.ResultsA total of 9 studies were included, consisting of 8 before-after studies and 1 cohort study. Six studies evaluated positive rate of environmental samplings, meta-analysis revealed that HPV combined with manual cleaning disinfected the environment efficiently [relative risk (RR)=0.03, 95% confidence interval (CI) (0.01, 0.08), P< 0.000 01] and HPV was more efficient than manual cleaning [RR=0.04, 95%CI (0.02, 0.10), P< 0.000 01]. Three studies evaluated the hospital-acquired MDROs colonization/infection rates, and the results of the 3 studies were consistent, revealing that HPV could reduce hospital-acquired MDROs colonization/infection rates.ConclusionHPV is efficient in reducing MDROs contaminated surfaces and hospital-acquired infection rate.
ObjectiveTo systematically review the efficacy and safety of 12 antimicrobial drug regimens for the treatment of multidrug-resistant Gram-negative bacterial (MDR-GNB) infections. MethodsThe PubMed, Cochrane Library, Web of Science, Clinical Trials, CNKI, WanFang Data, and Chinese Medical Journal Full-text Database were electronically searched to collect studies related to objectives form inception to February 2023. Two researchers independently screened the literature, extracted data, and assessed the risk of bias in the included studies. Stata software was then used to perform a network meta-analysis. ResultsA total of 64 articles were included. The network meta-analysis results indicated that combination regimens based on carbapenems, β-lactam/combination agents, or tigecycline showed higher clinical antibacterial effectiveness and bacterial clearance rates for resistant bacterial infections. Among all regimens, tigecycline + β-lactam/combination agent, polymyxin + β-lactam/combination agent, and triple-therapy regimens exhibited superior antibacterial effects. Moreover, most combination regimens containing carbapenems had lower mortality risks, with carbapenems combined with aminoglycosides, β-lactam/combination agents, or polymyxins ranking high in clinical or bacteriological efficacy. ConclusionCurrent evidence suggests that combination regimens based on β-lactam/combination agents, carbapenems, and tigecycline may be beneficial for improving the clinical and bacteriological efficacy of treating resistant bacterial infections. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.
ObjectiveTo explore the practical effects of multi-disciplinary team (MDT) management model in the management of multidrug-resistant organisms (MDROs).MethodsIn 2015, the multi-drug resistant MDT was established, and MDT meetings were held regularly to focus on the problems in the management of MDROs and related measures to prevent and control nosocomial infections of MDROs.ResultsThe detection rate of MDROs from 2014 to 2017 was 9.20% (304/3 303), 7.11% (334/4 699), 8.01% (406/5 072), and 7.81% (354/4 533), respectively. The difference was statistically significant (χ2=11.803, P=0.008), in which the detection rates of carbapenem-resistant Acinetobacter baumannii (CRABA), carbapenem-resistant Pseudomonas aeruginosa, and carbapenem-resistant Enterobacteriaceae (CRE) changed significantly (χ2=39.022, 17.052, 12.211; P<0.05). From 2014 to 2017, the proportion of multi-drug resistant infections decreased year by year, from 84.54% to 52.82%, and the proportion of multi-drug resistant hospital infections also declined, from 46.05% to 23.16%; the nosocomial infection case-time rate decreased from 0.24% to 0.13% year-on-year; the proportion of multi-drug resistant hospital infections in total hospital infections was 9.07%, 11.17%, 10.47%, and 6.16%, respectively; in the distribution of multi-drug resistant nosocomial infection bacteria, the proportion of methicillin-resistant Staphylococcus aureus, CRABA, CRE hospital infections accounted for the number of MDROs detected decreased year by year. The use rate of antibiotics decreased from 46.58% in 2014 to 42.93% in 2017, and the rate of pathogens increased from 64.83% in 2014 to 84.59% in 2017.ConclusionThe MDT management mode is effective for the management and control of MDROs, which can reduce the detection rate, infection rate, hospital infection rate, and antibacterial drug use rate, increase the pathogen detection rate, and make the prevention and control of MDROs more scientific and standardized.
Objective To evaluate the effect of ECRS management model on the quality of prevention and control of hospital infection with multidrug-resistant organisms (MDROs). Methods The data related to the prevention and control of MDROs in the First Hospital of Nanchang in 2020 and 2021 were retrospectively collected. The hospital implemented routine MDRO infection prevention and control management in accordance with the Expert Consensus on the Prevention and Control of Multi-drug Resistant Bacteria Nosocomial Infection in 2020. On this basis, the hospital applied the four principles of the ECRS method to cancel, combine, rearrange and simplify the MDRO infection prevention and control management. The detection rate of MDROs on object surfaces, the incidence rate of hospital infection of MDROs, the compliance rate of hand hygiene, the implementation rate of contact isolation prevention and control measures, and the pass rate of MDRO infection prevention and control education assessment were analyzed and compared between the two years. Results The detection rate of MDROs on the surfaces in 2021 was lower than that in 2020 (9.39% vs. 31.63%). The hospital-acquired MDRO infection rate in 2021 was lower than that in 2020 (1.18% vs. 1.46%). The hand hygiene compliance rates of medical staff, workers and caregivers in 2021 were higher than those in 2020 (90.99% vs. 78.63%, 73.51% vs. 45.96%, 70.96% vs. 33.71%). The implementation rate of contact isolation prevention and control measures in 2021 was higher than that in 2020 (93.31% vs. 70.79%). The qualified rates of MDRO infection prevention and control education in medical personnel, workers and caregivers in 2021 were higher than those in 2020 (96.57% vs. 81.31%, 76.47% vs. 47.95%, 73.17% vs. 34.19%). All the differences above were statistically significant (P<0.05). Conclusion ECRS management mode can improve the execution and prevention level of MDRO hospital infection prevention and control, and reduce the incidence of MDRO hospital infection.
Objective To analyze the distribution of pathogens, drug susceptibility and multi-drug resistant bacteria (MDRB) in elderly patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) complicated with pneumonia. Methods The clinical data of patients whose discharge diagnosis included AECOPD with pneumonia or pulmonary infection from January 2012 to December 2015 were retrospectively analyzed. Strain identification and drug sensitivity analysis were performed in the pathogenic bacterias isolated from sputum culture. Results A total of 1 978 patients were enrolled in this study, and pathogenic bacterias were isolated from the sputum of 708 patients, including 485 cases of community-acquired pneumonia (CAP) and 223 cases of hospital-acquired pneumonia (HAP); and 786 strains of pathogens were isolated (501 strains from CAP cases, 285 strains from HAP cases), including 448 strains of Gram-negative (G–) bacilli (57.0%), 117 strains of Gram-positive (G+) cocci (14.9%), and 221 strains of fungi (28.1%). Susceptibility testing results showed that G– bacilli were highly resistant to penicillins, third generation cephalosporins, ciprofloxacin, gentamicin, etc., and G+ cocci were highly resistant to penicillin, clindamycin and erythromycin. There were 238 strains of MDRB, mainly including 69 strains of Acinetobacter baumanii [multiple drug resistance rate (MDRR)=67.6%], 27 strains of Escherichia coli (MDRR=52.9%), 25 strains of Klebsiella pneumoniae (MDRR=34.2%), 33 strains of Pseudomonas aeruginosa (MDRR=33.0%) and 24 strains of Stenotrophomonas maltophilia (MDRR=100.0%). MDRR of Enterococcus genus and methicillin-resistant Staphylococcus aureus was 50.0% and 48.0%, respectively. Conclusions The pathogenic bacterias in elderly AECOPD patients complicated with pneumonia are mainly G– bacterias, and the proportion of fungal infection tends to increase. Bacterial drug resistance is serious and the MDRB tends to increase, especially in patients with HAP. Physicians should early find out the characteristics of local pathogenic bacteria and drug sensitivity, rationally select antibiotics, reduce the occurrence of drug-resistant strains and superinfection when treating the elderly patients with AECOPD complicated with pneumonia.