Clinical analysis of central venous catheter-related infections in patients in the emergency ICU

BACKGROUND:Catheter-related infection(CRI)of the central vein is a common cause of nosocomial infection.This study was undertaken to investigate the pathogen culturing and risk factors of CRI in emergency intensive care unit(EICU)in order to provide the beneficial reference.METHODS:From January 2008 to December 2010,a total of 1 363 patients were subjected to catheterization.In these patients,the peak CRI rate of the patients was determined by bacterial cultivation and blood bacterial cultivation.RESULTS:CRI happened in 147 of the 1 363 patients using the central venous catheter.The peak rate of CRI was 10.79%,with an incidence of 3.05 episodes per 1 000 catheter days.Of the147 patients,46.94%had gram-negative bacilli,40.14%had gram-positive cocci,and 12.92%had fungi.Unconditional logistic regression analysis suggests that multiple catheterization,femoral vein catheterization,the application of multicavity catheter,and the duration of catheterization were the independent risk factors for CRI.CONCLUSION:The risk factors for catheter-related infections should be controlled to prevent the occurrence of nosocomial infection.

Study progress on relevant infection in central venous catheter led by parenteral nutrition of patients with tumor

With the wide application of parental nutrition(PN) and central venous catheter(CVC) to tumor patients, the relative infection led by CVC has become a common and troublesome hospital infection in clinics. During infusion, PN fluid forms a high-sugar and high-fat micro-environment around CVC, facilitating the adhesion, growth, and diffusion of pathogenic bacteria. This condition forms a bacterial biofilm(BF) consisting of one or several kinds of pathogenic bacteria. Upon formation of the film, pathogens in the BF can resist anti-bacterial drugs and immune cells, causing repeated infections of bacteria or fungi and endangering the lives of patients. In this paper, we summarize the applications of PN, characteristics of CVC infection in tumor patients, mixed BF, and related research methods to provide reference for studies of mixed BF infection of CVC.

Emergency service results of central venous catheters:Single center,1042 patients,10-year experience

BACKGROUND Central venous catheterization is currently an important procedure in critical care.Central catheterization has important advantages in many clinical situations.It can also lead to different complications such as infection,hemorrhage,and thrombosis.It is important to investigate critically ill patients undergoing catheterization.AIM To evaluate the characteristics,such as hospitalization,demographic characteristics,post-catheterization complications,and mortality relationships,of patients in whom a central venous catheter was placed in the emergency room.METHODS A total of 1042 patients over the age of 18 who presented to the emergency department between January 2005 and December 2015 were analyzed retrospectively.The patients were divided into three groups,jugular,subclavian,and femoral,according to the area where the catheter was inserted.Complications related to catheterization were determined as pneumothorax,guidewire problems,bleeding,catheter site infection,arterial intervention,and sepsis.Considering the treatment follow-up of the patients,three groups were formed as outpatient treatment,hospitalization,and death.RESULTS The mean age of the patients was 60.99±19.85 years;423(40.6%)of them were women.Hospitalization time was 11.89±16.38 d.There was a significant correlation between the inserted catheters with gender(P=0.009)and hospitalization time(P=0.040).Also,blood glucose,blood urea nitrogen,creatinine,and serum potassium values among the biochemical values of the patients who were catheterized were significant.A significant association was observed in the analysis of patients with complications that develop according to the catheter region(P=0.001)and the outcome stage(P=0.001).In receiver operating characteristic curve analysis of hospitalization time and mortality area under curve was 0.575,the 95%confidence interval was 0.496-0.653,the sensitivity was 71%,and the specificity was 89%(P=0.040).CONCLUSION Catheter location and length of stay are important risk factors for catheter-borne infections.Because the risk of infection was lower than other catheters,jugular catheters should be preferred at entry points,and preventive measures should be taken by monitoring patients closely to reduce hospitalization infections.

Study on the Risk Factors of Central Venous-Related Bloodstream Infection in Outpatients

Objective:To analyze the risk factors of catheter-related bloodstream infection in outpatients and propose feasible prevention and control measures.Methods:The medical records of outpatients with peripherally inserted central catheter(PICC)from January 2020 to December 2021 were selected for retrospective analysis,and the factors that may be related to the occurrence of catheter-related bloodstream infection were analyzed by logistic multivariate analysis.Results:The incidence rate of catheter-related bloodstream infection among the enrolled patients was 4.78%.It was found that age,duration of catheterization,catheter site,number of punctures,and diabetes were all risk factors for catheter-associated bloodstream infection,and the differences were statistically significant.Conclusion:Age,duration of catheterization,catheterization site,and diabetes are all risk factors for catheter-related bloodstream infection,and medical personnel should fully understand and learn more about these risk factors and actively develop countermeasures to reduce the risk of catheter-related bloodstream infection.

Focus on peripherally inserted central catheters in critically ill patients

Venous access devices are of pivotal importance for an increasing number of critically ill patients in a variety of disease states and in a variety of clinical settings(emergency, intensive care, surgery) and for different purposes(fluids or drugs infusions, parenteral nutrition, antibiotic therapy, hemodynamic monitoring, procedures of dialysis/apheresis). However, healthcare professionals are commonly worried about the possible consequences that may result using a central venous access device(CVAD)(mainly, bloodstream infections and thrombosis), both peripherally inserted central catheters(PICCs) and centrally inserted central catheters(CICCs). This review aims to discuss indications, insertion techniques, and care of PICCs in critically ill patients. PICCs have many advantages over standard CICCs. First of all, their insertion is easy and safe-due to their placement into peripheral veins of the armand the advantage of a central location of catheter tip suitable for all osmolarity and p H solutions. Using the ultrasound-guidance for the PICC insertion, the risk of hemothorax and pneumothorax can be avoided, as wellas the possibility of primary malposition is very low. PICC placement is also appropriate to avoid post-procedural hemorrhage in patients with an abnormal coagulative state who need a CVAD. Some limits previously ascribed to PICCs(i.e., low flow rates, difficult central venous pressure monitoring, lack of safety for radio-diagnostic procedures, single-lumen) have delayed their start up in the intensive care units as common practice. Though, the recent development of power-injectable PICCs overcomes these technical limitations and PICCs have started to spread in critical care settings. Two important take-home messages may be drawn from this review. First, the incidence of complications varies depending on venous accesses and healthcare professionals should be aware of the different clinical performance as well as of the different risks associated with each type of CVAD(CICCs or PICCs). Second, an inappropriate CVAD choice and, particularly, an inadequate insertion technique are relevant-and often not recognized-potential risk factors for complications in critically ill patients. We strongly believe that all healthcare professionals involved in the choice, insertion or management of CVADs in critically ill patients should know all potential risk factors of complications. This knowledge may minimize complications and guarantee longevity to the CVAD optimizing the risk/benefit ratio of CVAD insertion and use. Proper management of CVADs in critical care saves lines and lives. Much evidence from the medical literature and from the clinical practice supports our belief that, compared to CICCs, the so-called power-injectable peripherally inserted central catheters are a good alternative choice in critical care.

Central line-associated bloodstream infection among children with biliary atresia listed for liver transplantation

BACKGROUND Pre-transplant nutrition is a key driver of outcomes following liver transplantation in children.Patients with biliary atresia(BA) may have difficulty achieving satisfactory weight gain with enteral nutrition alone,and parenteral nutrition(PN) may be indicated.While PN has been shown to improve anthropometric parameters of children with BA listed for liver transplantation,less is known about the risks,particularly infectious,associated with this therapy among this specific group of patients.AIM To describe the incidence,microbiology,and risk factors of central line-associated bloodstream infection(CLABSI) among children with BA listed for liver transplantation.METHODS Retrospective review of children aged ≤ 2-years of age with BA who were listed for primary liver transplantation at Texas Children's Hospital from 2008 through2015(n = 96).Patients with a central line for administration of PN(n = 63) were identified and details of each CLABSI event were abstracted.We compared the group of patients who experienced CLABSI to the group who did not,to determine whether demographic,clinical,or laboratory factors correlated with development of CLABSI.RESULTS Nineteen of 63 patients(30%,95%CI:19,43) experienced 29 episodes of CLABSI during 4800 line days(6.04 CLABSI per 1000 line days).CLABSI was predominantly associated with Gram-negative organisms(14/29 episodes,48%)including Klebsiella spp.,Enterobacter spp.,and Escherichia coli.The sole polymicrobial infection grew Enterobacter cloacae and Klebsiella pneumoniae.Grampositive organisms(all Staphylococcus spp.) and fungus(all Candida spp.)comprised 9/29(31%) and 6/29(21%) episodes,respectively.No demographic,clinical,or laboratory factors were significantly associated with an increased risk for the first CLABSI event in Cox proportional hazards regression analysis CONCLUSION There is substantial risk for CLABSI among children with BA listed for liver transplantation.No clinical,demographic,or laboratory factor we tested emerged as an independent predictor of CLABSI.While our data did not show an impact of CLABSI on the short-term clinical outcome,it would seem prudent to implement CLABSI reduction strategies in this population to the extent that each CLABSI event represents potentially preventable hospitalization,unnecessary healthcare dollar expenditures,and may exact an opportunity cost,in terms of missed allograft offers.

Central Line Associated Bloodstream Infection in Adult Intensive Care Unit Population—Changes in Epidemiology, Diagnosis, Prevention, and Addition of New Technologies

Background: Intensive care units (ICUs) have an increased risk of Central line associated bloodstream infection (CLABSI) due to the prevalence of invasive procedures, devices, immunosuppression, comorbidity, frailty, and elderly patients. We have seen a successful reduction in Central line associated bloodstream infection related the past decade. In spite of this, Intensive care unit-Catheter related bloodstream infections remain high. The emergence of new pathogens further complicates treatment and threatens patient outcomes in this context. In addition, the SARS-CoV-2 (COVID-19) pandemic served as a reminder that an emerging pathogen poses a challenge for adjusting prevention measures regarding both the risk of exposure to caregivers and maintaining a high level of care. ICU nurses play an important role in the prevention and management of CLABSI as they are involved in basic hygienic care, quality improvement initiatives, microbiological sampling, and aspects of antimicrobial stewardship. Microbiological techniques that are more sensitive and our increased knowledge of the interactions between critically ill patients and their microbiota are forcing us to rethink how we define CLABSIs and how we can diagnose, treat, and prevent them in the ICU. The objective of this multidisciplinary expert review, focused on the ICU setting, is to summarize the recently observed occurrence of CLABSI in ICU, to consider the role of modern microbiological techniques in their diagnosis, to examine clinical and epidemiological definitions, and to redefine several controversial preventive measures including antimicrobial-impregnated catheters, chlorhexidine-gluconate impregnated sponge, and catheter dressings.

Investigation and Analysis of the Status Quo of Prevention and Control Practices of Catheter-Line Associated Bloodstream Infections (CLABSI) in Guangxi, China

The prevention and control of catheter line-associated bloodstream infections (CLABSI) have become the key content of medical care and have become the core improvement goal of nursing quality control. However, the prevention and control status of CLABSI in hospitals of different grades in Guangxi is not clear. In this study, we aim to investigate central venous catheter (CVC) placement and disinfectant use in second and third-level hospitals in Guangxi. This survey was conducted on the second and third-level hospitals in Guangxi, China from 13th April 2021 to 19th April 2021. The results show that a total of 283 questionnaires were collected, including 206 secondary hospitals and 77 tertiary hospitals. In terms of the CVC, tertiary hospitals were able to place CVC entirely under the guidance of B-ultrasound, which was 24 (31.6%) and secondary hospitals were 26 (20.6%). In secondary hospitals, Most CVC placements were performed in operating rooms 94 (74.6%) and 65 (85.5%) on the third level hospital, but 32.5% of secondary hospitals and 48.7% of tertiary hospitals were selected at the bedside of patients in general wards, and 27.8% of the second-level hospital, 43.4% of third-level hospitals was done in general ward treatment rooms, only 61.9% of secondary hospitals and 64.5% of tertiary hospitals could fully achieve the maximum sterile barrier. In terms of skin disinfectants, only 36.0% of tertiary hospitals and 16.4% of second-level CVC-operators chose > 0.5% chlorhexidine alcohol. In conclusion, the prevention and control of catheter line-associated bloodstream infections (CLABSI) in Guangxi are not ideal. The prevention and control department should increase training, implement guidelines and standardize management to reduce the incidence of CLABSI.

Analysis of Use and Outcomes of Peripherally Inserted Central Catheter (PICC-Line) in Hemato-Oncological Patients

Aims: To audit the use and outcomes of using PICC lines in hemato-oncological patients. Objectives: To study the demographics of patients: ?studying the use of PICC line in hemato-oncological patients;studying the rate of complications in PICC line;studying the cause of early removal of PICC line. Methods: All PICCs inserted in adult hemato-oncological patients in Hematology and Medical Oncology Department of Health Care Global (HCG) Hospital were studied prospectively, as per the proforma, till PICCs were removed or patient expired and the pattern of complications were noted. Results: Eighty-four PICCs were inserted over a period of initial nine months and followed for a total of 1 year with three months post insertion duration for a total of 10,868 catheter-days (mean of 129 days i.e. 4.3 months, range: 1 to 288 days). The most common indication for PICC was chemotherapy (100%). Among them 19 (22%) PICCs had complications and 12 were removed at the rate of 1.1/1000 PICC-days. Complications with haematologic malignancies were more as compared to those with solid tissue malignancies. Conclusions: Despite significant complication rates, PICCs are a relatively safe and cost effective mode of establishing central venous access.

Emphysematous thrombophlebitis caused by a misplaced central venous catheter: A case report

BACKGROUND Central venous catheters(CVCs)often cause life-threatening complications,especially CVC-related bloodstream infection(CVC-BSI)and catheter-related thrombosis(CRT).Here,we report an unusual case of misplaced CVC-induced emphysematous thrombophlebitis,a rare but potentially lethal form of CRT and CVC-BSI characterized by both thrombosis and gas formation.CASE SUMMARY A 48-year-old male presented to the emergency room of a local hospital with sudden-onset headache and coma for 4 h.Computed tomography(CT)revealed right basal ganglia hemorrhage,so emergency decompressive craniotomy was performed and a CVC was inserted through the right subclavian vein for fluid resuscitation during anesthesia.Two days later,the patient was transferred to the intensive care unit of our hospital for further critical care.On day 9 after CVC insertion,the patient suddenly developed fever and hypotension.Point-of-care ultrasound(POCUS)demonstrated thrombosis and dilatation of the right internal jugular vein(IJV)filled with thrombosis.Ultrasonography also revealed that the CVC tip had been misplaced into the IJV and was surrounded by gas bubbles,which manifested as hyperechoic lines with dirty shadowing and comet-tail artifacts.Further CT scan confirmed air bubbles surrounding the CVC in the right neck.The final diagnosis was septic emphysematous thrombophlebitis induced by a misplaced CVC and ensuing septic shock.The responsible CVC was removed immediately.The patient received fluid resuscitation,intravenous noradrenaline,and a 10-d ultra-broad spectrum antibiotic treatment to combat septic shock.Both CVC and peripheral venous blood cultures yielded methicillin-resistant Staphylococcus cohnii.The patient was gradually weaned off vasopressors and the symptoms of redness and swelling in the right neck subsided within 7 d.CONCLUSION Emphysematous thrombophlebitis is a fulminant and life-threatening CVC-BSI associated with thrombosis and gas formation in the vein.A misplaced CVC may facilitate the development of emphysematous thrombophlebitis.POCUS can easily identify the artifacts produced by gas and thrombosis,facilitating rapid diagnosis at the bedside.

Five-Year Surveillance of Central Line Associated Bloodstream Infection in an Intensive Care Unit Population—A Retrospective Analysis

Background: Central venous catheters (CVCs) are essential to current intensive care unit (ICU) practices as a tool for treating critically ill patients. However, the use of CVCs is associated with substantial risk of infection. Central line associated bloodstream infection (CLABSI) is increasing in prevalence each year and is among the major causes of bloodstream infection in ICU patients. Therefore, investigating the epidemiology and risk factors of CLABSI in ICU patients is important. Objective: This study aimed to investigate the incidence rates, causative pathogens and risk factors of CLABSI in an ICU population. Methods: A retrospective observational study was performed in an ICU at Qilu Hospital of Shandong University in China from January 2016 to December 2020. Patients with at least one CVC were enrolled, and information relevant to CVC use was recorded. The prevalence was calculated, and related risk factors were analyzed. Results: A total of 1920 catheters were identified, 507 of which were eligible for analysis. For each of the years 2016-2020, the incidence rates of CLABSI were 1.91, 3.18, 1.69, 2.97 and 1.27 per 1000 catheter days, respectively. The yeast Candida albicans was the most prevalent pathogen (16 [(3.2%]), followed by Gram-positive methicillin-resistant Staphylococcus aureus (11 [2.2%]) and the Gram-negative multidrug-resistant pathogen Acinetobacter baumanii. Risk factors associated with CLABSI development were age, (p = 0.05), Charlson comorbidity index > 5 (p Conclusion: Candida albicans was the most common causative microorganism, which was followed by Gram positive methicillin resistant Staphylococcus, MDR K. pneumoniae and Acinetobacter baumanii.

Two episodes of anaphylaxis caused by a chlorhexidine sulfadiazine-coated central venous catheter

Central venous catheters （CVCs） are widely used to monitor the circulation and for administering fluids,parenteral nutrition, and chemotherapy, especially in patients undergoing major surgery. In patients who require prolonged use of a catheter, clinicians sometimes use antiseptic catheters to reduce the risk of catheter-related infection. Anaphylaxis in response to chlorhexidine sulfadiazine-coated central venous catheters is uncommon, but it can lead to severe problems.

陕西省血液净化从业护士中心静脉导管相关血流感染预防知信行水平调查

目的调查陕西省血液净化从业护士对中心静脉导管相关血流感染预防知信行现状,分析影响因素,为相关防控工作开展提供参考。方法采用便利抽样法,于2023年12月-2024年1月对陕西省二、三级医院血液净化从业护士进行问卷调查。利用逐步多元线性回归分析影响因素。结果共回收有效问卷832份。血液净化从业护士知信行总分、知识维度、信念维度、行为维度得分分别为(104.59±12.99)分、(15.47±1.97)分、(45.52±5.78)分、(43.61±10.23)分。医院等级是知识维度、信念维度和知信行总体的影响因素(P<0.05),所在科室、是否参加过相关防控培训是行为维度的影响因素(P<0.05),是否参加过相关防控培训、医院相关部门是否定期督导和检查是知信行总体的影响因素(P<0.05)。结论陕西省血液净化从业护士中心静脉导管相关血流感染预防的态度和行为积极,但知识水平有待提升。医院应加强培训,尤其是二级医院和ICU。

肝素钠与头孢呋辛钠联合封管治疗对血液透析患者中心静脉导管感染的临床疗效及生命质量影响分析

目的分析肝素与头孢呋辛钠联合封管治疗对血液透析中心静脉导管感染患者的临床疗效及生命质量影响。方法选取2018年1月至2022年5月南昌大学第四附属医院联合鹰潭市人民医院(含门诊走透)的76例血液透析中心静脉导管感染患者作为研究对象,随机分为观察组与对照组,各38例。观察组采用肝素钠注射液联合注射用头孢呋辛钠进行封管,对照组采用肝素钠注射液联合硫酸庆大霉素注射液进行封管。比较两组临床疗效、封管治疗前后炎症因子指标、生命质量及并发症发生情况。结果观察组治疗总有效率高于对照组,但组间比较差异无统计学意义。封管治疗后,观察组白细胞介素-6、高敏C反应蛋白、肿瘤坏死因子-α水平均低于对照组,差异有统计学意义(P<0.05)。封管治疗后,观察组躯体健康、心理健康评分及总分均高于对照组,差异有统计学意义(P<0.05)。观察组并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论肝素钠注射液联合注射用头孢呋辛钠联合封管治疗血液透析中心静脉导管感染疗效显著,能显著降低炎症因子水平,改善生命质量评分,降低并发症发生率,值得临床推广应用。

大蒜捣汁外敷联合常规治疗对血液透析导管感染的影响

目的探讨大蒜捣汁外敷联合常规抗感染治疗对血液透析患者导管感染疗效及经济效益的影响。方法选取颈内隧道式导管的血液透析患者64例,每组32例。对照组用常规抗感染治疗,观察组在对照组的基础上加以新鲜大蒜捣碎出汁后外敷于患者皮下隧道处。对比2组患者炎症状态、平均额外住院日和平均额外住院费用。结果治疗后,2组患者的IL-6、CRP、PCT、WBC水平均降低(P<0.05),且观察组低于对照组(P<0.05);治疗后观察组的平均额外住院日、平均额外住院费用均低于对照组(P<0.05)。结论在血液透析患者常规治疗基础上,加以大蒜捣汁外敷皮下隧道处,可明显控制炎症因子水平,并缩短平均住院日,从而降低住院平均费用。

血液净化用中心静脉导管相关血流感染防控管理的最佳证据总结

目的检索、评价并汇总血液净化用中心静脉导管相关血流感染防控管理的证据,为血液透析护理提供循证依据。方法根据“6S”证据模型,系统检索数据库及网站中血液净化用中心静脉导管相关血流感染防控的临床实践指南、专家共识、系统评价、证据总结、最佳临床实践等。检索时限为建库至2023年7月25日。由两名研究人员进行文献质量评价,证据提取、分析与整合。结果共纳入16篇文献,其中指南8篇、专家共识5篇、系统评价3篇。最终形成包括危险因素、制度管理、无菌屏障、导管留置、导管评估、导管维护、冲封管7个类别共41条的最佳证据。结论医护人员在证据转化过程中应根据导管留置时间和患者个体差异应用证据,并及时更新相关证据,以降低血液净化用中心静脉导管相关血流感染发生率。

基于随机森林模型的抗肿瘤化疗患者经外周静脉植入中心静脉导管置管后导管相关感染及影响因素

目的 基于随机森林模型分析化学治疗患者经外周静脉置入中心静脉导管(PICC)置管后导管相关感染的影响因素。方法 选取接受化学治疗并留置PICC的400例肿瘤患者,采用计算机产生随机数法将就诊患者以3∶1的比例分为训练集(300例)和测试集(100例)。根据感染发生情况将训练集患者分为无感染组和感染组,比较两组的临床资料,采用多因素logistic回归模型及随机森林的集成分类算法分析患者PICC置管后出现导管相关感染的影响因素,并对比二者的预测效能。结果 训练集300例化学治疗患者中,32例患者出现导管相关感染(10.67%),与无感染组比较,感染组患者单次置管穿刺次数更多,PICC留置时间更长,导管移动比例、合并糖尿病比例及换药频次更高,白细胞计数(WBC)水平及免疫功能更低(均P<0.05)。PICC留置时间、导管移动情况、合并糖尿病情况、换药频次、WBC及免疫功能均为患者PICC置管后导管相关感染的独立影响因素(均P<0.05)。随机森林模型显示不同影响因素的重要程度排序结果依次为:PICC留置时间、导管移动情况、合并糖尿病情况、WBC、换药频次及免疫功能。随机森林模型的集成分类算法预测化学治疗患者发生导管相关感染的受试者工作特征(ROC)曲线下面积(AUC)为0.872,与logistic回归模型(AUC=0.791)相比预测效能更优。结论 PICC留置时间、导管移动情况、合并糖尿病情况、换药频次、WBC水平及免疫功能是化学治疗患者发生导管相关感染的独立影响因素,随机森林模型的集成分类算法可用于对化学治疗患者发生导管相关感染的预测分析,其预测性能优于logistic回归模型。

儿童专科医院护士中心静脉导管相关血流感染预防知信行调查

目的调查儿童专科医院护士中心静脉导管相关血流感染(CLABSI)知信行现状,分析影响因素,为降低CLABSI发生率提供参考。方法便利选取3家三甲儿童专科医院1112名护士进行问卷调查。采用Kruskal-Wallis H检验进行单因素分析,使用多元线性回归进行多因素分析。结果儿童专科医院护士CLABSI预防知信行总得分率为88.27%,知识、态度和行为维度得分率分别为82.71%、95.20%、90.05%。最高学历、医院是否有预防CLABSI的标准操作规程、是否接受过中心静脉导管留置和维护操作的规范化培训是知识维度的影响因素(均P<0.05);医院类别、医院对CLABSI预防的重视程度、是否接受过CLABSI预防相关知识培训是态度和行为维度的影响因素(均P<0.05)。结论儿童专科医院护士对CLABSI预防的态度和行为积极,但知识水平较低。医院应结合实际制订CLABSI防控策略,建立标准操作规程,加大对低学历护士培训力度。

六西格玛管理在预防肝移植儿童中心静脉导管相关性血流感染中的应用

目的探讨六西格玛管理方法在预防肝移植儿童中心静脉导管相关性血流感染(CLABSI)中的应用效果。方法选取2021年1月—9月留置中心静脉导管的216例患儿为对照组,2022年1月—9月留置中心静脉导管192例患儿为干预组。针对肝移植儿童中心静脉导管的维护管理,对照组实施常规护理措施,干预组在对照组基础上采用六西格玛管理法。对比两组的CLABSI的发生率及千日导管血流感染率。结果干预组CLABSI发生率为1.04%,低于对照组的1.39%。差异有统计学意义(P<0.05);干预组千日导管血流感染率为0.64‰,低于对照组1.07‰,差异有统计学意义(P<0.05)。结论西格玛管理方法能有效降低肝移植儿童CLABSI发生率,提高患儿安全。

基于倾向性评分匹配的ICU中心静脉导管相关血流感染危险因素

目的探讨中心静脉导管相关血流感染(CLABSI)的独立危险因素,为制定感染防控的干预措施和开展针对性治疗提供依据。方法回顾性收集2019年1月—2023年12月某院诊断为CLABSI的患者,将其定义为感染组,并采用倾向性评分匹配(PSM)法1∶4匹配置入中心静脉导管(CVC)且未发生感染的患者为对照组。以是否发生CLABSI为因变量,将匹配后两组的可能危险因素为自变量进行logistic回归分析,探索患者发生CLABSI的独立危险因素。结果共匹配CLABSI组患者42例,非CLABSI组患者168例。多因素logistic回归分析显示,急性生理学及慢性健康状况(APACHEⅡ)评分高[OR=1.217,95%CI(1.094~1.357),P<0.001]、中心静脉置管时间长[OR=1.273,95%CI(1.157~1.400),P<0.001]及股静脉置管[OR=6.846,95%CI(1.511~31.014),P=0.013]是CLABSI发生的独立危险因素。42例CLABSI患者共分离病原菌118株,以革兰阴性菌为主(56株)。结论高APACHEⅡ评分、中心静脉置管时间长及股静脉置管是CLABSI发生的独立危险因素,主要病原菌为革兰阴性杆菌,针对这些危险因素严格落实CLABSI相应的防控措施,减少感染风险。