Are antimicrobial stewardship interventions effective and safe in long-term care facilities? A systematic review and meta-analysis

The impact of long-term care interventions on healthcare utilisation among older persons: a scoping review of reviews

BACKGROUND

As the ageing population grows, the demand for long-term care (LTC) services will rise, concurrently amplifying healthcare utilisation. This review aims to examine and consolidate information on LTC interventions that influence healthcare utilisation among older persons.

METHODS

A scoping review was performed through a systematic search in PubMed, EBSCO CINAHL, EBM Reviews - Cochrane Database of Systematic Reviews, Embase, APA PsycInfo, EBM Reviews - Health Technology Assessment, and EBM Reviews - NHS Economic Evaluation Database. Systematic reviews with meta-analyses published between 1 January 2010 and 2 June 2022 among older persons aged 60 and above were included. The characteristics of LTC interventions were mapped to the World Health Organization (WHO) Healthy Ageing Framework. The effect sizes of healthcare utilisations for LTC interventions were recalculated using a random-effects model. The methodological quality was assessed with the AMSTAR-2 checklist, while the quality of evidence for each association was evaluated using GRADE.

RESULTS

Thirty-seven meta-analyses were included. The most prominent domain of the healthy ageing framework was managing chronic conditions. One hundred twelve associations between various LTC interventions and healthcare utilisations were identified, with 22 associations impacting healthcare utilisation. Four interventions were supported by suggestive or convincing evidence. Preventive home visits were found to reduce hospital admission (OR: 0.73, 95% CI: 0.59, 0.91, p = 0.005), caregiver integration during discharge planning (OR: 0.68, 95% CI: 0.57, 0.81, p < 0.001), and continuity of care (OR: 0.76, 95% CI: 0.61, 0.95, p = 0.018) reduced hospital readmission, and perioperative geriatric interventions reduced the length of hospital stay (MD: -1.50, 95% CI: -2.24, -0.76, p < 0.001). None of the associations impacted emergency department visits, medication use, and primary care utilisations with convincing evidence. Most reviews received low methodological quality.

CONCLUSION

The findings suggest that LTC interventions could benefit from transitioning to a community-based setting involving a multidisciplinary team, including carers. The spectrum of services should incorporate a comprehensive assessment to ensure continuous care.

Challenges of antimicrobial stewardship among older adults

Older adults hospitalized in internal medicine wards or long-term care facilities (LTCF) are progressively increasing. Older adults with multimorbidity are more susceptible to infections, as well as to more vulnerable to adverse effects (and interactions) of antibiotics, resulting in a need for effective and safer strategies for antimicrobial stewardship (ASM), both in hospitalization wards and long-term care facilities. Studies on antimicrobial stewardship in older patients are scarce and guidelines are required. Given the peculiarities of the optimization of antimicrobial prescription in individual older adults for common infections, tactics to overcome barriers need an update. The use of rapid diagnosis tests, biomarkers, de-escalation and switching from intravenous to oral/subcutaneous therapy strategies are examples of successful AMS interventions. AMS interventions are associated with reduced side effects, lower mortality, shorter hospital stays, and reduced costs. The proposed AMS framework in LTCF should focus on five domains: strategic vision, team, interventions, patient-centred care and awareness. Internists can partner with geriatrists, pharmacists and infectious disease specialists to address barriers and to improve patient care.

Nursing home nurses' opinions on the potential evolution of their role in antibiotic stewardship: A French national cross-sectional survey

AIMS

To assess French nursing home nurses' opinions on the potential evolution of their antibiotic stewardship role, facilitators and barriers, and nurses' characteristics associated with their opinion toward new roles regarding antibiotic prescribing.

DESIGN

We conducted a cross-sectional study in French nursing homes with ≥20 beds and for which an email address was available in a national database managed by the French government between May and June 2022.

METHODS

A self-administered internet-based questionnaire of 43 closed-ended Likert items was sent to directors of eligible nursing homes by email asking them to forward the link to the questionnaire to the nurses and head nurses of their institution. Data analysis included descriptive statistics and χ2 tests.

RESULTS

7215 nursing homes were sent the online questionnaire; 1090 participants completed it partially or totally and 923 fully filled in the questionnaire. A majority of nurses supported strengthening and expanding their antibiotic stewardship role. Regarding new roles, over 70% agreed that nurses could collect urine samples to perform a urine culture on their own initiative, prescribe microbiological laboratory tests, and change the drug formulation or the administration route of the antibiotic prescribed by the general practitioner. One-third declared that they could initiate antibiotics for some infections and/or change the empirical antibiotic treatment prescribed by the general practitioner. Nurses from public nursing homes with connection to a hospital (27.5% vs. >35% for other status) and with recent experience in nursing homes (31% for <5 years of practice vs. 41% for 10 years or more) were less likely to agree to prescribe antibiotics.

CONCLUSIONS

This quantitative questionnaire survey identified potential new nurses' roles in antibiotic stewardship that seem to be acceptable and feasible for participants. These new nurses' roles need to be explored in future experimentations before considering implementation.

REPORTING METHOD

The study adhered to relevant EQUATOR guidelines and followed the STROBE reporting guidelines.

PATIENT OR PUBLIC CONTRIBUTION

A self-administered internet-based questionnaire was sent to directors of eligible nursing homes by email asking them to forward the link to the questionnaire to the nurses and head nurses of their institution. Nurses and head nurses who were interested and willing could complete the questionnaire online partially or fully.

TRIAL AND PROTOCOL REGISTRATION

This study is not a clinical trial and is not eligible for trial registration. We used another suitable study registration site, the Center for Open Science.

Use of antibiotics in long-term care facilities for the elderly in Germany - point prevalence as a possible first step for data-based antibiotic stewardship

Introduction

In Germany, hospitals, rehabilitation facilities and outpatient surgery facilities are required by law to perform antibiotic-consumption surveillance. Established IT programs are available for recording the defined daily doses. These do not exist for long-term care facilities (LTCFs). Antibiotic stewardship is also recommended for LTCFs. In view of the lack of IT solutions for consumption surveillance, this study investigated whether point prevalence studies could be a suitable basis for a data-based antibiotic stewardship program in LTCFs.

Method

In May 2023, 18 elderly-care facilities in Berlin, Germany, participated in a point prevalence survey on antibiotic consumption according to the established HALT (healthcare-associated infections in long-term care facilities) method. The number of residents present and their risk factors (including the use of catheters and antibiotic therapy) were recorded. The results were compared with comparable data from previous surveys in LTCFs in Berlin, Germany as well as with the HALT data for Europe as a whole and for Germany.

Results

On the day of the survey, 2040 residents were present, 7.7% of whom bore a urinary catheter and 0.5% a vascular catheter. 0.2% of the residents had a port access, 0.4% a dialysis catheter and one resident (0.05%) a tracheostoma. Twenty-seven (1.3%) residents were receiving an antibiotic on the day of the survey. Of these, 29.6% had a urinary tract catheter. 63.0% of the antibiotics were given for a urinary tract infection, 14.8% for a respiratory tract infection and 11.1% for a wound/soft tissue infection. The overall prevalence of antibiotics was in the range of previous surveys from Germany (1.2-2.4%) and significantly lower than in the Europe-wide HALT survey overall (4.3-4.5%).

Discussion

The survey showed low use of antibiotics in the LTCFs in comparison with Europe-wide surveys. The time required was less than 2 hours for a 100-bed facility. Until appropriate IT programs to determine the defined daily doses are also available for LTCFs, such easy-to-perform and standardized point-prevalence surveys - if repeated several times a year - can be a suitable method for recording the use of antibiotics in nursing homes for the elderly.

Assessment of implementation strategies adopted for antimicrobial stewardship interventions in long-term care facilities: a systematic review

BACKGROUND

The implementation of antimicrobial stewardship (AMS) interventions in long-term care facilities (LTCFs) is influenced by multi-level factors (resident, organizational, and external) making their effectiveness sensitive to the implementation context.

OBJECTIVES

This study assessed the strategies adopted for the implementation of AMS interventions in LTCFs, whether they considered organizational characteristics, and their effectiveness.

DATA SOURCES

Electronic databases until April 2022.

STUDY ELIGIBILITY CRITERIA

Articles covering implementation of AMS interventions in LTCFs.

ASSESSMENT OF RISK OF BIAS

Mixed Methods Appraisal Tool for empirical studies.

METHODS OF DATA SYNTHESIS

Data were collected on AMS interventions and context characteristics (e.g. type of facility, staffing, and residents). Implementation strategies and outcomes were mapped according to the Expert Recommendations for Implementing Change (ERIC) framework and validated taxonomy for implementation outcomes. Implementation and clinical effectiveness were assessed according to the primary and secondary outcomes results provided in each study.

RESULTS

Among 48 studies included in the analysis, 19 (40%) used implementation strategies corresponding to one to three ERIC domains, including education and training (n = 36/48, 75%), evaluative and iterative strategies (n = 24/48, 50%), and support clinicians (n = 23/48, 48%). Only 8/48 (17%) studies made use of implementation theories, frameworks, or models. Fidelity and sustainability were reported respectively in 21 (70%) and 3 (10%) of 27 studies providing implementation outcomes. Implementation strategy was considered effective in 11/27 (41%) studies, mainly including actions to improve use (n = 6/11, 54%) and education (n = 4/11, 36%). Of the 42 interventions, 18/42 (43%) were deemed clinically effective. Among 21 clinically effective studies, implementation was deemed effective in four and partially effective in five. Two studies were clinically effective despite having non-effective implementation.

CONCLUSIONS

The effectiveness of AMS interventions in LTCFs largely differed according to the interventions' content and implementation strategies adopted. Implementation frameworks should be considered to adapt and tailor interventions and strategies to the local context.

Resident-, prescriber-, and facility-level factors associated with antibiotic use in long-term care facilities: a systematic review of quantitative studies

BACKGROUND

Antimicrobial stewardship programmes are needed in long-term care facilities (LTCFs) to tackle antimicrobial resistance. We aimed to identify factors associated with antibiotic use in LTCFs. Such information would be useful to guide antimicrobial stewardship programmes.

METHOD

We conducted a systematic review of studies retrieved from PubMed, Cochrane Library, Embase, APA PsycArticles, APA PsycINFO, APA PsycTherapy, ScienceDirect and Web of Science. We included quantitative studies that investigated factors associated with antibiotic use (i.e., antibiotic prescribing by health professionals, administration by LTCF staff, or use by residents). Participants were LTCF residents, their family, and/or carers. We performed a qualitative narrative synthesis of the findings.

RESULTS

Of the 7,591 screened records, we included 57 articles. Most studies used a longitudinal design (n = 34/57), investigated resident-level (n = 29/57) and/or facility-level factors (n = 32/57), and fewer prescriber-level ones (n = 8/57). Studies included two types of outcome: overall volume of antibiotic prescriptions (n = 45/57), inappropriate antibiotic prescription (n = 10/57); two included both types. Resident-level factors associated with a higher volume of antibiotic prescriptions included comorbidities (5 out of 8 studies which investigated this factor found a statistically significant association), history of infection (n = 5/6), potential signs of infection (e.g., fever, n = 4/6), positive urine culture/dipstick results (n = 3/4), indwelling urinary catheter (n = 12/14), and resident/family request for antibiotics (n = 1/1). At the facility-level, the volume of antibiotic prescriptions was positively associated with staff turnover (n = 1/1) and prevalence of after-hours medical practitioner visits (n = 1/1), and negatively associated with LTCF hiring an on-site coordinating physician (n = 1/1). At the prescriber-level, higher antibiotic prescribing was associated with high prescription rate for antibiotics in the previous year (n = 1/1).

CONCLUSIONS

Improving infection prevention and control, and diagnostic practices as part of antimicrobial stewardship programmes remain critical steps to reduce antibiotic prescribing in LTCFs. Once results confirmed by further studies, implementing institutional changes to limit staff turnover, ensure the presence of a professional accountable for the antimicrobial stewardship activities, and improve collaboration between LTCFs and external prescribers may contribute to reduce antibiotic prescribing.

A practice guide on antimicrobial stewardship in nursing homes

A practice guide to help nursing homes set up an antimicrobial stewardship (AMS) program was developed based on experiences gained during a project at one of the largest providers of elderly care in the South-east of the Netherlands. The guideline for the implementation of AMS in Dutch hospitals served as a starting point and were tailored to the unique characteristics of a nursing home setting. This practice guide offers recommendations and practical tools while emphasizing the importance of establishing a multidisciplinary approach to oversee AMS efforts. The recommendations and practical tools address various elements of AMS, including the basic conditions to initiate an AMS program and a comprehensive approach to embed an AMS program. This approach involves educating nurses and caregivers, informing volunteers and residents/their representatives, and the activities of an antibiotic team (A-team). The practice guide also highlights a feasible work process for the A-team. This process aims to achieve a culture of continuous learning and improvement that can enhance the overall quality of antibiotic prescribing rather than making individual adjustments to client prescriptions. Overall, this practice guide aims to help nursing homes establish an AMS program through collaborative efforts between involved physicians, pharmacists, clinical microbiologists, and infection control practitioners. The involved physician plays a crucial role in instilling a sense of urgency and developing a stepwise strategy.

Role of the contaminated environment in transmission of multidrug-resistant organisms in nursing homes and infection prevention

BACKGROUND

With aging of the population in the United States, there are more people in long-term care facilities than in hospitals. Nursing home residents have a high prevalence of colonization with multidrug-resistant organisms (MDROs). A shared environment with vulnerable patients can facilitate intra- and inter-facility transmission of MDROs. The aim of this paper is to examine the role of the nursing home environment in MDRO transmission and provide infection prevention strategies.

METHODS

We searched the published literature and reviewed selected articles on contamination, transmission, and infection associated with the nursing home environment.

RESULTS

Nursing home residents were frequently colonized with MDROs, leading to contamination of the surrounding environment with the same pathogen. Surface contamination with MDROs was common in nursing home patient rooms, and to a substantial but lesser frequency in common rooms. Shared rooms were a risk factor for MDRO transmission between patients.

CONCLUSIONS

Since outbreaks and infections via the environmental contamination cause substantial burden of morbidity and mortality in the nursing home residents, it is essential for healthcare personnel to recognize the role of the nursing home environment in infection transmission and adhere to the current infection prevention guidelines for cleaning and disinfection of environmental surfaces.

A Multifaceted Intervention and Its Effects on Antibiotic Usage in Norwegian Nursing Homes

We explored the impact of an antibiotic quality improvement intervention across 33 nursing homes (NHs) in one Norwegian county, compared against four control counties. This 12-month multifaceted intervention consisted of three physical conferences, including educational sessions, workshops, antibiotic feedback reports, and academic detailing sessions. We provided clinical guiding checklists to participating NHs. Pharmacy sales data served as a measure of systemic antibiotic use. The primary outcome was a change in antibiotic use in DDD/100 BD from the baseline through the intervention, assessed using linear mixed models to identify changes in antibiotic use. Total antibiotic use decreased by 15.8%, from 8.68 to 7.31 DDD/100BD (model-based estimated change (MBEC): -1.37, 95% CI: -2.35 to -0.41) in the intervention group, albeit not a significantly greater reduction than in the control counties (model-based estimated difference in change (MBEDC): -0.75, 95% CI: -1.91 to 0.41). Oral antibiotic usage for urinary tract infections (UTI-AB) decreased 32.8%, from 4.08 to 2.74 DDD/100BD (MBEC: -1.34, 95% CI: -1.85 to -0.84), a significantly greater reduction than in the control counties (MBEDC: -0.9, 95% CI: -1.28 to -0.31). The multifaceted intervention may reduce UTI-AB use in NHs, whereas adjustments in the implementation strategy may be needed to reduce total antibiotic use.

Ventilator-associated pneumonia in neurocritically ill patients: insights from the ENIO international prospective observational study

BACKGROUND

Acute brain injured (ABI) patients are at high risk of developing ventilator-associated pneumonia (VAP). However, incidence, risk factors and effects on outcome of VAP are not completely elucidated in this population. The primary aim of this study was to determine the incidence of VAP in a cohort of ABI patients. The secondary objectives included the identification of risk factors for development of VAP, and the impact of VAP on clinical outcomes. Clinical outcomes were defined as intensive care unit length of stay (ICU-LOS), duration of invasive mechanical ventilation (IMV), and ICU mortality.

METHODS

Pre-planned sub-analysis of the Extubation strategies in Neuro-Intensive care unit (ICU) patients and associations with Outcomes (ENIO) international multi-center prospective observational study. Patients with available data on VAP, who received at least 48 h of IMV and ICU-LOS ≥ 72 h were included.

RESULTS

Out of 1512 patients included in the ENIO study, 1285 were eligible for this analysis. The prevalence of VAP was 39.5% (33.7 cases /1000 ventilator-days), with a high heterogeneity across countries and according to the type of brain injury. VAP was significantly more frequent in male patients, in those with smoke habits and when intraparenchymal probe (IP), external ventricular drain (EVD) or hypothermia (p < 0.001) were used. Independent risk factors for VAP occurrence were male gender, the use of IP, hypothermia, and the occurrence of tracheobronchitis during ICU stay. VAP was not an independent risk factor for ICU mortality (Hazard Ratio, HR = 0.71 95%CI 0.43-1.16, p = 0.168), but was independently associated with longer ICU stay (OR = 2.55 95%CI 2.01-3.23, p < 0.001).

CONCLUSIONS

VAP is common in ABI patients. Male gender, IP and EVD insertion, tracheobronchitis, and the use of therapeutic hypothermia were significantly associated with VAP occurrence. VAP did not affect mortality but increased ICU-LOS.

Clinical and Ecological Impact of an Educational Program to Optimize Antibiotic Treatments in Nursing Homes (PROA-SENIOR): A Cluster, Randomized, Controlled Trial and Interrupted Time-Series Analysis

BACKGROUND

Antimicrobial stewardship programs (ASPs) are recommended in nursing homes (NHs), although data are limited. We aimed to determine the clinical and ecological impact of an ASP for NHs.

METHODS

We performed a cluster, randomized, controlled trial and a before-after study with interrupted time-series analyses in 14 NHs for 30 consecutive months from July 2018 to December 2020 in Andalusia, Spain. Seven facilities implemented an ASP with a bundle of 5 educational measures (general ASP) and 7 added 1-to-1 educational interviews (experimental ASP). The primary outcome was the overall use of antimicrobials, calculated monthly as defined daily doses (DDD) per 1000 resident days (DRD).

RESULTS

The total mean antimicrobial consumption decreased by 31.2% (-16.72 DRD; P = .045) with respect to the preintervention period; the overall use of quinolones and amoxicillin-clavulanic acid dropped by 52.2% (P = .001) and 42.5% (P = .006), respectively; and the overall prevalence of multidrug-resistant organisms (MDROs) decreased from 24.7% to 17.4% (P = .012). During the intervention period, 12.5 educational interviews per doctor were performed in the experimental ASP group; no differences were found in the total mean antimicrobial use between groups (-14.62 DRD; P = .25). Two unexpected coronavirus disease 2019 waves affected the centers increasing the overall mean use of antimicrobials by 40% (51.56 DRD; P < .0001).

CONCLUSIONS

This study suggests that an ASP for NHs appears to be associated with a decrease in total consumption of antimicrobials and prevalence of MDROs. This trial did not find benefits associated with educational interviews, probably due to the coronavirus disease 2019 pandemic. Clinical Trials Registration. NCT03543605.

Effect of a multifaceted antibiotic stewardship intervention to improve antibiotic prescribing for suspected urinary tract infections in frail older adults (ImpresU): pragmatic cluster randomised controlled trial in four European countries

OBJECTIVE

To evaluate whether antibiotic prescribing for suspected urinary tract infections in frail older adults can be reduced through a multifaceted antibiotic stewardship intervention.

DESIGN

Pragmatic, parallel, cluster randomised controlled trial, with a five month baseline period and a seven month follow-up period.

SETTING

38 clusters consisting of one or more general practices (n=43) and older adult care organisations (n=43) in Poland, the Netherlands, Norway, and Sweden, from September 2019 to June 2021.

PARTICIPANTS

1041 frail older adults aged 70 or older (Poland 325, the Netherlands 233, Norway 276, Sweden 207), contributing 411 person years to the follow-up period.

INTERVENTION

Healthcare professionals received a multifaceted antibiotic stewardship intervention consisting of a decision tool for appropriate antibiotic use, supported by a toolbox with educational materials. A participatory-action-research approach was used for implementation, with sessions for education, evaluation, and local tailoring of the intervention. The control group provided care as usual.

MAIN OUTCOME MEASURES

The primary outcome was the number of antibiotic prescriptions for suspected urinary tract infections per person year. Secondary outcomes included the incidence of complications, all cause hospital referrals, all cause hospital admissions, all cause mortality within 21 days after suspected urinary tract infections, and all cause mortality.

RESULTS

The numbers of antibiotic prescriptions for suspected urinary tract infections in the follow-up period were 54 prescriptions in 202 person years (0.27 per person year) in the intervention group and 121 prescriptions in 209 person years (0.58 per person year) in the usual care group. Participants in the intervention group had a lower rate of receiving an antibiotic prescription for a suspected urinary tract infection compared with participants in the usual care group, with a rate ratio of 0.42 (95% confidence interval 0.26 to 0.68). No differences between intervention and control group were observed in the incidence of complications (<0.01 v 0.05 per person year), hospital referrals (<0.01 v 0.05), admissions to hospital (0.01 v 0.05), and mortality (0 v 0.01) within 21 days after suspected urinary tract infections, nor in all cause mortality (0.26 v 0.26).

CONCLUSIONS

Implementation of a multifaceted antibiotic stewardship intervention safely reduced antibiotic prescribing for suspected urinary tract infections in frail older adults.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03970356.

Implementation of A Year-Long Antimicrobial Stewardship Program in A 227-Bed Community Hospital in Southern Italy

BACKGROUND

Healthcare-Acquired Infections (HAIs) are serious healthcare complications affecting hospital stay, in-hospital mortality, and costs. Root cause analysis has identified the inappropriate use of antibiotics as the main causative factor in the expansion of multi-drug-resistant organisms (MDRO) in our hospital. An Antimicrobial Stewardship (AMS) program was implemented to optimize antibiotic use, limit the development of resistance, improve therapeutic efficacy and clinical outcomes, and reduce costs.

METHODS

The stewardship strategies were: antimicrobial oversight on "critical" antibiotics; the development of hospital guidelines on antibiotic selection with the production of a consensus document; the implementation of clinical and management control algorithms with visual impact and Business Intelligence methods; training and updating; and the monitoring of outcome measures and process indicators.

RESULTS

Clinical outcomes: length of stay reduced by 0.23 days, hospital readmission/first month rates decreased by 19%, and mortality for infections reduced by 8.8%. Microbiological Outcomes: Clostridium Difficile colitis incidence reduced by 9.1%.Economic Outcomes: Reduction in antimicrobial costs by 35% on average fee/discharged patient.

CONCLUSIONS

The systematic application of the AMS program in a small hospital led to multiple improvements in clinical, microbiological, and economic outcome measures. The analysis of the core indicators for our hospital AMS program showed a significant adherence to the model and hospital recommendations.

Preventing healthcare-related infections among older adults: a focus on cross-transmission of antibiotic-resistant bacteria

INTRODUCTION

Older individuals (i.e. age ≥65 years) are at increased risk for development of infections including those due to antimicrobial-resistant bacteria, and transmission may occur between institutional and community settings.

AREAS COVERED

This article reviews infections in older individuals with a specific focus on healthcare-related and antimicrobial resistant infections. A structured narrative review was performed to identify articles published in English since 2010. Themes included defining the scope of the problem, establishing characteristics of older individuals that impact the burden of resistant infections, and interventions aimed at minimizing their impact.

EXPERT OPINION

Older individuals suffer a high burden of illness related to antimicrobial resistant infections. Individuals with chronic illnesses, frailty, and residents of nursing homes are at highest risk. Clinical trials have shown that antimicrobial stewardship interventions may reduce antibiotic use in nursing homes without compromising safety. Antimicrobial resistant bacteria are prevalent among nursing home residents, and bundled infection prevention and control interventions can reduce their transmission. Transmission of antimicrobial resistant bacteria occurs among older adults across hospital and institutional settings, which may further spread to the community. The burden of infections in older adults is expected to increase in the coming years and represents a healthcare and research priority.