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Nurse roles in antimicrobial stewardship: lessons from public sectors models of acute care service delivery in the United Kingdom

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Abstract

Background

Health care services must engage all relevant healthcare workers, including nurses, in optimal antimicrobial use to address the global threat of drug-resistant infections. Reflecting upon the variety of antimicrobial stewardship (AMS) nursing models already implemented in the UK could facilitate policymaking and decisions in other settings about context-sensitive, pragmatic nurse roles.

Methods

We describe purposefully selected cases drawn from the UK network of public sector nurses in AMS exploring their characteristics, influence, relations with clinical and financial structures, and role content.

Results

AMS nursing has been deployed in the UK within ‘vertical’, ‘horizontal’ or ‘hybrid’ models. The ‘vertical’ model refers to a novel, often unique consultant-type role ideally suited to transform organisational practice by legitimising nurse participation in antimicrobial decisions. Such organisational improvements may not be straightforward, though, due to scalability issues. The ‘horizontal’ model can foster coordinated efforts to increase optimal AMS behaviours in all nurses around a narrative of patient safety and quality. Such model may be unable to address tensions between the required institutional response to sepsis and the inappropriate use of antibiotics. Finally, the ‘hybrid’ model would increase AMS responsibilities for all nurses whilst allocating some expanded AMS skills to existing teams of specialists such as sepsis or vascular access nurses. This model can generate economies of scale, yet it may be threatened by a lack of clarity about a nurse-relevant vision.

Conclusions

A variety of models articulating the participation of nurses in antimicrobial stewardship efforts have already been implemented in public sector organisations in the UK. The strengths and weaknesses of each model need considering before implementation in other settings and healthcare systems, including precise metrics of success and careful consideration of context-sensitive, resource dependent and pragmatic solutions.

Background

Responding to the global threat of drug-resistant infections (DRIs) demands a blend of wide-ranging yet integrated technical and organisational approaches. Some of these approaches include clinical practice improvements, education and training, surveillance, research and policy [1].

Such response to DRIs, however, must also overcome some workforce dilemmas and challenges. On the one hand, there have been proposals for governments, healthcare leaders and other relevant actors to increase funds and boost the number of frontline professionals involved in relevant actions against drug resistance [2]. Alas, the current supply of healthcare professionals worldwide is not robust enough to meet such demands, with shortages of healthcare workers estimated to reach ~ 13 million by 2035 [3]. In the UK alone, for example, more than 40,000 nursing positions remain vacant. Therefore, it remains crucial to maximise the contribution of existing professional cadres towards appropriate use of antimicrobials.

Among these cadres, nurses represent the largest workforce worldwide. In India, for example, there were just under 4 million nurses in 2016 [4], compared with the 2.95 million nurses practising in the US [5], or the 287,000 full-time equivalent nurses and health visitors in the UK at the end of 2017 [6]. Arguably, any marginal gain –say, 1%– in the involvement of nurses across optimal management of antibiotics to their full clinical and leadership potential might have a compounded beneficial effect for health services and patients. Such benefits would be particularly welcomed in settings where scarcity of human resources is most acute and the struggle to establish ‘more traditional’ AMS teams (i.e., those formed by a physician and a pharmacist) more pressing.

Endorsements for the integration or leadership of nurses within AMS interventions have already been made [7, 8]; however, the majority of authors and position statements published have sketched such participation primarily around bedside, clinical, assistive and task-oriented antimicrobial management. Those aspects, although relevant and appropriate, still omit nurses from the wider decision-making and executive process and therefore constrain their potential influence and leadership on relevant antimicrobial outcomes [9].

The drivers for such limiting perspective may be multiple, from perceptions within nursing and other healthcare professions about AMS as a mere technical process requiring increased knowledge about antibiotic prescriptions [10] and which therefore broadly excludes professionals without prescribing powers, to existing gaps in undergraduate and postgraduate education about AMS and resistance across human health disciplines [11, 12].

Gradually, though, a variety of interventions such as the standardisation of educational competencies [13, 14] (Table 1) and the regulation of professional AMS tasks [15, 16] –both aspects crucial considering that effective and sustainable AMS programs demand coordinated efforts from multiple professional groups– have endeavoured to close those gaps and balance their impact.

Table 1 Proposed antimicrobial stewardship education domains for undergraduate students in healthcare disciplines in the United Kingdom, [13]

The maturity now reached by the notion of nurse participation in AMS has also been reflected in some of the new domains emerging for such participation, ranging from leadership [17], political advocacy [18], or funding of services [19]. (Fig. 1) This progressive inclusion of nurses onto stewardship therefore presents a good opportunity to reflect upon some of the models of AMS nursing already implemented, with a view to facilitate efforts by healthcare workers and decision-makers considering the introduction or expansion of efforts.

Fig. 1
figure1

Suggested roles and responsibilities for medical, pharmacy, and nursing staff as part of a stewardship team (adapted from [19])

Methods

The paper uses information from purposefully selected, convenience cases drawn from the nationwide network of public sector nurses in AMS in the UK exploring their salient characteristics, strategic influence, managerial and financial relations with other structures, role content and effect on professional identity. The cases were selected to ensure sufficiently rich and contrasting information on their characteristics was obtained, from London/outside London healthcare services, urban and rural organisations, reference and district hospitals, and role components. The cases would help reflect upon lessons and propose models that could be applicable internationally, thus facilitating the implementation of context-sensitive and pragmatic nurse roles.

The network, akin to a special interest group or a community of practice [20], formed organically following the 1st nursing summit in AMS held at Imperial College London in the UK in January 2017. The network currently includes 109 nurses interested in progressing clinical, academic, managerial and educational aspects of nurse involvement in AMS, establishing mechanisms of support for new entrants to the field, fostering collaborations and ultimately encouraging professional visibility at a time of calls for increased nursing leadership in the area [21]. The network has received robust support from clinical and research leaders from pharmacy and medicine. Although the majority of members are based in the UK, there are also professionals from Sweden, Australia, Norway, South Africa, Nigeria and the Netherlands.

The information provided on enrolment to the network by purposively selected cases was mapped against role specifications, scope of practice, governance and organisational profiles (Table 2), with attention to how closely the nurse roles resembled those previously introduced among physicians and pharmacists [22], the setting of jurisdiction and practice for the nurses (community, hospital, acute, long-term care …), the organisational placing of the role (i.e., whether embedded in infection prevention and control or antimicrobial stewardship pharmacy teams), specific role components (i.e., clinical, educational, quality or service improvement, policy-making, managerial), and measures of role process and outcome evaluation (that is, which indicators would deem the roles as successful).

Table 2 Domains of antimicrobial stewardship nursing model analysis

Results

Nursing involvement and participation in stewardship has adopted three broad yet distinct models (Table 3), in close alignment with other clinical areas where innovative roles and competencies have appeared [23,24,25,26].

Table 3 Characteristics of antimicrobial stewardship nursing models

‘Vertical’ model

Within this model, the participation of nurses in AMS efforts would be channelled via the implementation of a consultant nurse or advanced nurse practitioner role in AMS. The focus of this novel and often unique position would be AMS. In the UK, ‘consultant nurse’ roles were introduced 20 years ago structured around four core functions of expert practice of high autonomy; education, training and development; professional leadership to motivate others; service development, research and evaluation [27].

Due to these characteristics and aspirations, the roles may be ideal to transform organisational AMS practice. Beyond the creation or commissioning of the post, however, the overall structures for involvement and delivery of nursing input on stewardship would not be transformed at large and any clinical effect or improvement achieved stems from this expert, highly-specialised and influential individual [28].

The appointment of such figure would demonstrate organisational commitment and endorsement to improved AMS performance, and galvanise and rationalise efforts in AMS. Further, the introduction of this focal person in a position of decision-making and influence may legitimise the participation of nurses in AMS, in particular if the main remit of the role is designing, improving or leading practice. Without such guiding figure it may be challenging for nurses to engage in effective AMS, as seen in other areas such as infection prevention and control [29]. As this model would replicate organisational structures existing in other health professions involved in AMS decisions and management, integration within current clinical responsibilities and engagement of other professionals may be easier.

Potentially, though, generating hard evidence of positive outcomes or benefits achieved by the introduction of a single role or individual may be difficult. For example, consultant nurses have so far made their greatest impact in practice and service development and as knowledge brokers [30], rather than in direct patient outcomes and cost-benefit [31] thus being much more challenging to demonstrate such impact when any effect is achieved through the work of others. In antimicrobial decision-making, though, the emerging importance of behaviours such as persuading prescribers together with the social dynamics that end up shaping prescriptions has been gradually recognised [32], offering an ideal target for such advisory and influencing role. This also seems to have been the case with Consultant Pharmacists in Infection and AMR in the UK, encouraging the learning from previous experiences and across disciplines [33].

This hypothetical bottleneck in the translation from role to benefits could also hamper the scalability of the model and affect assumptions underpinning economic evaluations in view of the substantial start-up, upfront implementation costs required (i.e., setting up the role could be expensive) before realising any gains on AMS outcomes. Regarding expenditures, decision-makers may wish to account for any opportunity costs and avoid inefficiencies by reducing or eliminating potential overlapping areas with other professionals.

Finally, there could be a danger of reinforcing multi- but not inter-disciplinarity, by fostering parallel professional lines where a nurse, for example, would address and engage with nursing practices, whilst other professionals supervise and support their own cadres, in tune with existing evidence about social and team demarcations in antimicrobial prescribing [34]. To mitigate such fragmentation, a priori efforts would be vital to identify boundaries and relations between the spheres of responsibility and influence of the new role and others, for example between infection prevention and control, or specialist sepsis nurses [35].

‘Horizontal’ model

Within this approach there would not be any specific or dedicated AMS nurse role implemented. Instead, the organisation would engage in a concerted drive to increase optimal AMS behaviours and practices among nurses. Such behaviours may reflect nationally agreed objectives [36] (Table 4), or conform to local needs.

Table 4 Components of ‘Start Smart then Focus’, [36]

This institutional perspective may serve to distance AMS from the point of prescription or decision-making about prescribing to a broader panoply of tasks, behaviours and decisions framed around the idea of providing excellent care. Doing so would address the recognised chasm between the awareness about AMS, a label hardly recognised by nurses [37], and many clinical tasks performed routinely – for example, ensuring that adequate and biological samples are sent on time for analysis, administering antibiotics doses on time, or communicating to the multidisciplinary team clinical improvements in the patient’s condition so alternative, less invasive therapy can be considered or stopped–, which account for most elements embedded in AMS and are central to quality care. Such point of view may also facilitate constructing a meaningful and engaging narrative for nurses, who may be much more receptive to messages framed around patient safety and quality than prescribing [38].

A great strength of this model would lie on its scalability and potential size and speed of its impact. For example, protocols and directives reflecting centrally-driven priorities about antimicrobial performance may be adopted with relative ease and therefore transform clinical practice without delay [39, 40]. In reality, such mandates tend to be met with organisational friction which undermines their effect, unless there is an adequate allocation of resources and responsibilities for one or several individuals in charge of the design, implementation, adoption and evaluation of these AMS tasks and responsibilities across the organisation and the nursing workforce [41] (Table 5).

Table 5 Examples of antimicrobial stewardship nursing posts from UK network

In addition to the organisational friction, the horizontal model may have difficulties resolving competing tensions between existing paradigms within current antimicrobial management, with the response to sepsis demanding swift use of antibiotics whilst stewardship warrants a judicious, perhaps more measured, approach. Without a focal nursing figure establishing an integrative vision that recognises optimal use as the key behaviour (that is, prompt when needed yet promptly reviewed to determine whether its need remains relevant), nurses may not be able to engage in such nuanced performance.

‘Hybrid model’ (vertical-horizontal)

Within this model, organisations would foster and implement expectations about increased AMS tasks, roles, responsibilities embedded within the remit of all clinicians including nurses, underpinning such expectations with the allocation to existing healthcare workers of some expanded or specialist AMS skills. This approach could benefit from enhancing existing roles, such as infection prevention and control link nurses, or including further skills and responsibilities within existing specialist nursing teams – sepsis specialist nurses, or nurses in vascular access team would appear particularly well placed to embrace these additional responsibilities. Other posts such as ward managers could combine their leadership in infection prevention and control with an emphasis on stewardship.

This model would offer benefits due to the economies of scale derived from the use of a sizeable portion of the workforce, and natural links with existing roles. However, such rewards may stall due to a lack of clarity about a nurse-relevant vision to drive continued improvement, compounded by an increased complexity of the management of drug-resistant infections.

Discussion

The broadening and expansion of nursing posts in AMS could strengthen existing programs [42]. However, the mere introduction of any roles –even if coupled with the development of associated educational competencies– may not be sufficient to stimulate benefits to patients, organisations and the wider healthcare economy.

A crucial aspect to realise these benefits would be the substantiation of clear, concrete, and precise markers of success for such nursing participation, ideally concerned about impact or outcomes rather than just process, in line with the current debate about optimal antimicrobial prescribing, for example [43, 44]. The challenges highlighted in the recent CDC/ANA White Paper [45] related to the existing absence of metrics that could reflect the benefit of incorporating nurses onto service delivery structures has to be acknowledged, and should encourage reflection at the local and national level, depending on the needs and resources available. Recent AMS experiences reported in rural and remote areas in Australia [46] validate the acute need to tailor interventions to the local context.

Although comparable analyses of AMS nursing models in the UK or elsewhere are lacking, it would be possible to apply our findings to some of the existing literature describing the relation of nurses with existing AMS interventions. For example, in their survey exploring the participation of nurses in stewardship across the African continent Bulabula et al. (2018) [47] advocate for expanding the role of clinical nurses to support stewardship, particularly in rural areas, an idea that aligns completely with the horizontal model of wide addition of skills and knowledge to the existing workforce. Further, these authors recognise how existing IPC nurses may also already attend AMS committees and input on policy and clinical decisions, a scenario fitting to our hybrid model of practice. Another example of such hybrid practice appears in a qualitative study conducted in the US [48] documenting the engagement of nurses in optimising the use of antibiotics in intensive care units. The authors propose that existing advanced nurse practitioners embrace AMS leadership roles, so the involvement of other nursing colleagues is galvanized and sustained.

Within the UK network the appointment of single professionals on short, fixed-term contracts could be of concern and raise doubts about the likelihood of achieving meaningful clinical and organisational impacts. Such short-term appointing may reflect the business reality of attempting to create new positions. However, as the evidence mounts of benefits related to the participation of nurses, the focus should instead be placed on how best implement new roles or responsibilities rather than, in effect, whether to deploy them.

Additionally, decision-makers evaluating whether to fund and support nurse roles in AMS ought to elude potential unintended consequences derived from such appointments. For example, it would be paramount for AMS not be seen as an isolated, specialist issue that is better handled by specialists, therefore leading to the de-skilling [49] or disinterest from the generalist nursing workforce. As seen in medical practice [50], non-specialist practitioners are still greatly involved in, and remain responsible, for the majority of AMR-related actions.

In fact, the existing narrative and experiences about AMS nursing have mainly involved secondary care, with a handful of experiences in community and long-term facilities [51]. Considering that the largest proportion of antibiotics are prescribed in primary care and that nurses are responsible for delivering most services, such imbalance requires urgent attention. The current political emphasis on universal health coverage supported by robust nursing leadership may offer an optimal prospect for studies of community stewardship roles.

Conclusion

In summary, pressing clinical demands imposed by antimicrobial resistance require organisational responses that would be remiss to ignore the contribution that nurses can have. Optimal approaches to incorporate such contribution remain to be agreed upon, in particular the executive and leadership rather than the clinical facets of the nurse participation in AMS. Although solutions should be context sensitive, resource dependent and pragmatic, the horizontal model of AMS nursing may allow for rapid system-level engagement and linkage to existing structures such as AMS pharmacist, which would facilitate mutual support in achieving AMS goals.

Availability of data and materials

Not applicable.

Abbreviations

AMS:

Antimicrobial stewardship

ANA:

American Nurses Association

CDC:

Centers for Disease Control and Prevention

DRI:

Drug-resistant infections

SSTF:

Start Smart Then Focus

UK:

United Kingdom

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Acknowledgments

The authors are grateful to the network of nurses in antimicrobial stewardship in the UK for their help and support.

Funding

This work was supported by the National Institute for Health Research Health Protection Research Unit (NIHR HPRU) [HPRU-2012–10047] in Healthcare Associated Infection and Antimicrobial Resistance at Imperial College London in partnership with Public Health England. ECS is a National Institute for Health Research Senior Nurse and Midwife Research Leader, and acknowledges the support of the NIHR Imperial Patient Safety Translational Research Centre.

Author information

ECS was responsible for the study design, data extraction and analysis. MG contributed to the analysis. ECS, MG, RA, MC, JB and AH contributed to the writing of the manuscript. All authors read and approved the final manuscript.

Correspondence to Enrique Castro-Sánchez.

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The study used public information available at the nationwide network of nurses in antimicrobial stewardship and was therefore exempt from ethical approval.

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The authors declare no competing interest related to this work. The views expressed are those of the author(s) and not necessarily those of the National Health Service, the NIHR, the Department of Health and Social Care or Public Health England.

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Castro-Sánchez, E., Gilchrist, M., Ahmad, R. et al. Nurse roles in antimicrobial stewardship: lessons from public sectors models of acute care service delivery in the United Kingdom. Antimicrob Resist Infect Control 8, 162 (2019) doi:10.1186/s13756-019-0621-4

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Keywords

  • Antimicrobial stewardship
  • Nursing
  • Service delivery
  • Implementation