Effectiveness of behavioural interventions to reduce urinary tract infections and Escherichia coli bacteraemia for older adults across all care settings: a systematic review

Hospital-acquired E. coli bacteraemia at a large UK NHS Trust. A return towards baseline following implementation of a 5-year quality improvement programme

Introduction

Until recently, healthcare-associated E. coli bacteraemia was a neglected area of infection prevention and control (IPC), despite a 30-day mortality of 15-20%. Recently, the UK Department of Health (DH) introduced a target to reduce hospital-acquired E. coli bacteraemias by 50% over a five-year period. Following implementation of multifaceted and multidisciplinary interventions, the aim of this study was to determine its impact on achieving this target.

Methods

From April 2017 to March 2022, consecutive hospital-acquired E. coli bacteraemic inpatients within Barts Health NHS Trust were prospectively studied. Using quality improvement methodology, and implementing the plan, do, study, act (PDSA) cycle at each stage, antibiotic prophylaxis for high-risk procedures were modified and 'good practice' interventions around medical devices introduced. Characteristics of bacteraemic patients were analysed and trends in bacteraemic episodes recorded. Statistical analysis was undertaken in Stata SE (version 16).

Results

There were 770 patients and 797 episodes of hospital-acquired E. coli bacteraemias. Following a baseline of 134 episodes in 2017-18, this peaked at 194 in 2019-20 before dropping to 157 in 2020-21 and 159 in 2021-22. Most hospital-acquired E. coli bacteraemias occurred in those aged > 50, 551 (69.1%), with the highest proportion occurring in those age > 70, 292 (36.6%). Hospital-acquired E. coli bacteraemia occurred more commonly between October to December.Most episodes occurred in either medicine or care of the elderly patients, 345 (43.3%), specialist surgery, 141 (17.7%), haematology/oncology, 127 (15.9%) and patients requiring critical care, 108 (13.6%). The urinary tract, 336 (42.2%), both catheter and non-catheter associated, was the commonest sites of infection. 175 (22.0%) of E. coli bacteraemic isolates were extended spectrum beta lactamase (ESB) producing. Co-amoxiclav resistance was 315 (39.5%), ciprofloxacin resistance 246 (30.9%) and gentamicin resistance 123 (15.4%). At 7 days, 77 patients (9.7%; 95% CI 7.4-12.2%) died and by 30 days this had risen to 129 (16.2%; 95% CI 13.7-19.9%).

Conclusion

Despite implementation of quality improvement (QI) interventions, it was not possible to achieve a 50% reduction from baseline although an 18% reduction was achieved from 2019-20 onwards. Our work highlights the importance of antimicrobial prophylaxis and medical device 'good practice'. Over time, these interventions, if properly implemented, could further reduce healthcare-associated E. coli bacteraemic infection.

Bacterial Urinary Tract Infection and Early Asymptomatic Bacteriuria in Kidney Transplantation Still Negatively Affect Kidney Transplant Outcomes in the Era of Modern Immunosuppression and Cotrimoxazole Prophylaxis

Risk factors and consequences of urinary tract infection (UTI) post-kidney transplant have been variously reported by studies that were heterogenous in immunosuppressants and prophylactic protocols. We aimed to clarify the risks and consequences of UTI in kidney transplant recipients with post-transplantation cotrimoxazole prophylaxis in the context of modern immunosuppression. This retrospective cohort included kidney transplant recipients receiving tacrolimus, mycophenolate, prednisolone, and cotrimoxazole for bacterial UTI prophylaxis. Recipients were categorized into non-UTI and UTI groups. Asymptomatic bacteriuria (ASB) was screened in the first 3 months and was evaluated for association with UTI. Of 348 kidney transplant recipients, 129 were in the UTI group and 219 in the non-UTI group. UTI risk factors were female sex, body mass index ≥ 25 kg/m², human leukocyte antigen mismatch, and panel reactive antibody ≥ 50%. Recipients with recurrent UTI had inferior allograft function compared with non-UTI recipients. Patient survival was significantly lower in recipients with UTI in the first post-transplant month. Higher degree of immunosuppressions was associated with recurrent UTI and drug-resistant organisms. In conclusion, UTI continues to negatively affect graft function and survival of kidney transplant recipients. Treating ASB in the first 3 months did not reduce the UTI incidence in the first transplantation year.

Reducing Inappropriate Urinary Catheter Use by Involving Patients Through the Participatient App: Before-and-After Study

Background

The risk of urinary tract infections is increased by the inappropriate placement and unnecessary prolongation of the use of indwelling urinary catheters. Sustained behavior change in infection prevention could be promoted by empowering patients through a smartphone app.

Objective

The aim of this study is to assess the feasibility and efficacy of implementation actions on patients’ use of the Participatient app on a clinical ward and to compare 3 survey methods for urinary catheter use.

Methods

Participatient was introduced for all admitted patients at the surgical nursing ward in a university hospital in the Netherlands. Over a period of 3 months, the number of new app users, days of use, and sessions were recorded. In a comparison of urinary catheter use before and after the implementation of the app, 3 methods for point prevalence surveys of catheter use were tested. Surveys were conducted through manual parsing of the text in patients’ electronic medical records, parsing a survey of checkbox items, and parsing nursing notes.

Results

In all, 475 patients were admitted to the ward, 42 (8.8%) installed the app, with 1 to 5 new users per week. The actions with the most ensuing app use were the kick-off with the clinical lesson and recruiting of the intake nurse. Between the survey methods, there was considerable variation in catheter use prevalence. Therefore, we used the standard method of manual parsing in further analyses. Catheter use prevalence decreased from 38% (36/96) to 27% (23/86) after app introduction (OR 0.61, 95% CI 0.32-1.14).

Conclusions

The clinical application of Participatient, the infection prevention app for patients, could be feasible when implementation actions are also used. For surveying indwelling urinary catheter use prevalence, manual parsing is the best approach.

Intervention to reduce unnecessary urinary catheter use in a large academic health science centre: A one-group, pretest, posttest study with a theory-based process evaluation

AIM

To evaluate an intervention to reduce unnecessary urinary catheter use and prevent catheter-associated urinary-tract infections (CAUTI) in hospitalized patients across an academic health science centre.

METHODS

We conducted a one-group, pretest, posttest study with a theory-based process evaluation. Phase 1 consisted of a pre/postintervention to test the impact of a CAUTI protocol. Audits on four units were conducted, and data were analysed descriptively. Phase 2 consisted of a theory-based process evaluation to understand the barriers/enablers to the implementation. Semistructured interviews were conducted and then analysed using a systematic approach.

RESULTS

In Phase 1, all inpatients with urinary catheters admitted to the units (N = 4) during the study period (N = 99, pre) and (N = 99, post) were included. CAUTI prevalence rate was 18.2% pre versus 14.1% post (p = .563). In Phase 2, participants (N = 18) who worked on the units were interviewed, and a total of 13 barriers and 19 enablers were found.

Preventing Catheter-Associated Urinary Tract Infections with Incontinence Management Alternatives: PureWick and Condom Catheter

Catheter-associated urinary tract infections (CAUTI) have a high financial and human impact on patients and society at large, making CAUTI prevention strategies essential. A shift has occurred where nurses play an increased role in infection prevention. Nurses promote staff and patient education on CAUTI prevention, identification of appropriate urinary incontinence management, and implementation of bundles and patient care strategies to minimize complications from urinary incontinence management. Because they understand the severity of CAUTI and current recommendations, nurses at the bedside are in the best position to identify appropriate indications of indwelling urinary catheters and external urine collection devices for patients.

Epidemiology of healthcare-associated infection reported from a hospital-wide incidence study: considerations for infection prevention and control planning

BACKGROUND

The measure of disease frequency most widely used to report healthcare-associated infection (HAI) is the point-prevalence survey. Incidence studies are rarely performed due to time and cost constraints; they show which patients are affected by HAI, when and where, and inform planning and design of infection prevention and control (IPC) measures.

AIM

To determine the epidemiology of HAI within a general and a teaching hospital in Scotland.

METHODS

A prospective observational incidence study was undertaken for one year from April 2018 using data collected as part of the Evaluation of Cost of Nosocomial Infection (ECONI) study. A novel, robust approach was undertaken, using record linkage to national administrative data to provide full admission and discharge information. Cases were recorded if they met international HAI definitions.

FINDINGS

Incidence of HAI for the combined hospitals was 250 HAI cases per 100,000 acute occupied bed-days (AOBD). Highest frequency was in urinary tract (51.2 per 100,000 AOBD), bloodstream (44.7), and lower respiratory tract infection (42.2). The most frequently reported organisms were Escherichia coli, Staphylococcus aureus, and norovirus. Incidence of HAI was higher in older people and emergency cases. There was an increase in the rate of HAI in summer months (pneumonia, respiratory, surgical, and gastrointestinal infection) and in winter months norovirus gastrointestinal infection (P < 0.0001). The highest incidence specialties were intensive care, renal medicine, and cardiothoracic surgery. HAI occurred at a median of 9 days (interquartile range: 4-19) after admission. Incidence data were extrapolated to provide an annual national estimate of HAI in NHS Scotland of 7437 (95% confidence interval: 7021-7849) cases.

CONCLUSION

This study provides a unique overview of incidence of HAI and identifies the burden of HAI at the national level for the first time. Understanding the incidence in different clinical settings, at different times, will allow targeting of IPC measures to those patients who would benefit the most.

Intermittent catheterisation: the common complications

Intermittent catheterisation (IC) has been in practice for more than 40 years and is considered the gold standard in the management of urinary retention in the neurological bladder. IC has many advantages over indwelling urethral or suprapubic catheterisation, including reducing the risk of infection, protecting the bladder and improving quality of life. However, complications can be caused by the practice of this technique, the most common of which is infection. This review discusses some of the common complications that can occur with the use of intermittent catheterisation, including urinary tract infection (UTIs) and urethral complications. It also highlights the role of the nurse in the management of its complications.

Trends in Incidence and Outcomes of Hospitalizations for Urinary Tract Infection among Older People in Spain (2001-2018)

(1) Background: To assess time trends in the incidence and in-hospital outcomes of urinary tract infection (UTI) in older people (≥65 years) in Spain (2001–2018) according to sex and to identify the factors independently associated with in-hospital mortality (IHM). (2) Methods: Using the Spanish National Hospital Database, we analyzed comorbidity, procedures, diagnosis, isolated microorganisms, and outcomes. (3) Results: We included 583,693 admissions (56.76% women). In both sexes, the incidence increased with age over time (p < 0.001). In men and women, the highest IHM was found among the oldest patients (>84 years) with values of 9.16% and 8.6%, respectively. The prevalence of bacteremia increased from 4.61% to 4.98% from 2001 to 2018 (p < 0.001) and sepsis decreased from 3.16% to 1.69% (p < 0.001). The risk of dying increased with age (>84 years) (OR 3.63; 95% CI 3.5–3.78) and with almost all comorbidities. Urinary catheter was a risk factor for women (OR 1.1; 95% CI 1.02–1.18) and protective for men (OR 0.71; 95% CI 0.66–0.76). Isolation of Staphylococcus aureus increased the risk of IHM by 40% among men (OR 1.4; 95% CI 1.28–1.53). After adjusting for confounders, IHM decreased over time. (4) Conclusions: The incidence of UTIs was higher in older patients and increased over time; however, IHM decreased during the same period. Female sex, age, comorbidities, sepsis, and a Staphylococcus aureus isolation increased risk of IHM.

Impact of a quality control circle on the incidence of catheter-associated urinary tract infection: An interrupted time series analysis

BACKGROUND

To report a quality control circle (QCC) activity on the theme of reducing the incidence of catheter-associated urinary tract infection (CAUTI), and used an interrupted time series analysis to evaluate the impact of the QCC.

METHODS

In a general tertiary hospital in Shenzhen, China, we carried out a QCC activity with the theme of reducing CAUTI from April 2017 to December 2017. Before the QCC, we carried out the routine measures; during the QCC, we implemented usual measures and the countermeasures of QCC, and after the QCC, we performed the routine measures and adhered to the core measures of QCC. The interrupted time series analysis method was used to analyze the changes in the CAUTI incidence during the 3 stages.

RESULTS

Before, during, and after the QCC activities, the catheter use ratios and mean indwelling time both had a downward trend; meanwhile, the compliance rate of CAUTI prevention measures showed an upward trend. After the interventions, the CAUTI incidence decreased by 1.317‰ immediately, then gradually decreased by 0.510‰ per month. After the completion of QCC, the CAUTI incidence increased by 0.266‰ immediately and increased by 0.070‰ over time, but the difference was not statistically significant.

CONCLUSIONS

The CAUTI incidence is reduced through QCC, providing a useful reference for the prevention of CAUTI and the development of medical quality improvement activities.

Preventing and Managing Urinary Tract Infections: Enhancing the Role of Community Pharmacists-A Mixed Methods Study

BACKGROUND

Community pharmacists are involved in antimicrobial stewardship through self-care advice and delivering medications for uncomplicated infections.

OBJECTIVES

This mixed methods study aimed to identify opportunities to enhance the role of community pharmacists in the management of service users with suspected or confirmed urinary tract infection (UTI).

METHODS

Data collection was through a service user survey (n = 51) and pharmacist surveys and semi-structured interviews before (16 interviews, 22 questionnaires) and after (15 interviews, 16 questionnaires) trialing UTI leaflets designed to be shared with service users. Data were analysed inductively using thematic analysis and descriptive tabulation of quantitative data.

RESULTS

Twenty-five percent (n = 13/51) of service users with urinary symptoms sought help from a pharmacist first and 65% (n = 33/51) were comfortable discussing their urinary symptoms with a pharmacist in a private space. Community pharmacists were confident as the first professional contact for service users with uncomplicated UTI (n = 13/16, 81%), but indicated the lack of a specific patient referral pathway (n = 16/16, 100%), the need for additional funding and staff (n = 10/16, 62%), and the importance of developing prescription options for pharmacists (5/16, 31%). All community pharmacists reported playing a daily role in controlling antimicrobial resistance by educating service users about viral and bacterial infections and promoting a healthy lifestyle. Enhancing their role will need greater integrated working with general practices and more prescribers based in community pharmacy.

CONCLUSION

This study suggests that community pharmacists could play a greater role in the management of uncomplicated UTI. The current reconfiguration of primary care in England with primary care networks and integrated care systems could provide a real opportunity for this collaborative working with potential learning for international initiatives.

Increased fluid intake for the prevention of urinary tract infection in adults and children in all settings: a systematic review

BACKGROUND

Non-antibiotic interventions for urinary tract infection (UTI) prevention have been investigated as a strategy to reduce antibiotic prescribing for UTI and subsequent antibiotic resistance. Increased hydration is widely advocated for preventing UTI; however, evidence for its effectiveness is unknown.

AIM

To systematically review the published literature on the effectiveness of increased fluid intake as a preventive intervention for UTI in adults and children in any setting.

METHODS

Five electronic databases were searched from inception to February 2019 to identify published randomized controlled trials (RCTs) and quasi-experimental studies evaluating the effectiveness of high (≥1.5 L/24 h) versus normal/low (<1.5 L/24 h) fluid intake for UTI prevention. The outcome was UTI incidence. Risk of bias was assessed using the Cochrane Collaboration's tool. Due to the small number of studies identified, meta-analysis was not possible. Hence a narrative synthesis was undertaken.

FINDINGS

Of the 2822 potentially relevant papers, two were eligible for inclusion: an RCT (individual randomization) and a cluster-RCT. Both studies differed regarding participants, setting, sample size, UTI definition, and intervention. The RCT was assessed as having a low risk of bias whereas the cluster-RCT had a high risk of bias. Only the RCT, which included healthy premenopausal women visiting primary care clinics, demonstrated statistical significance for the effect of high fluid intake for UTI prevention.

CONCLUSION

The lack of enough adequately powered and robust RCTs highlights the need for further research on the effectiveness of this intervention for UTI prevention.