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Herepath A, Kitchener M, Waring J. A realist analysis of hospital patient safety in Wales: applied learning for alternative contexts from a multisite case study. Southampton (UK): NIHR Journals Library; 2015 Sep. (Health Services and Delivery Research, No. 3.40.)

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A realist analysis of hospital patient safety in Wales: applied learning for alternative contexts from a multisite case study.

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Chapter 9Discussion and conclusion

Overview

In this chapter we present the discussion and conclusion of our study. Here, the explicit intention is to move beyond simple iteration. We therefore present our closing argument in four main parts.

First, we return to the original research questions posed in the aim and objectives of this study and address them guided by our empirical findings. In this manner, we forward our conceptualisation of context, mechanism, agency and ensuing outcome, and develop insights from the local implementation of the three focal interventions selected from the 1000 Lives+ national programme: ILQI, RSC and RHAI. Second, we acknowledge the limitations of our study and set out our stance regarding the generalisability of our findings. Next, we consider the contribution of this study to the study of patient safety, outline the future outputs from this project and suggest areas for future research. Finally, we consider the implications of the research for health-care practice and patient safety.

Which contextual factors matter: how, why and for whom?

In this study, we sought to ascertain which contextual factors matter, how, why and for whom, in order that processes and outcomes of future patient safety programmes may be improved. Our study therefore deviated, quite markedly, from the traditional focus of realist inquiry, and the newly established RAMESES publication standards for realist syntheses (www.ramesesproject.org). Most significantly, our unit of analysis was the process of local implementation of the 1000 Lives+ programme, as opposed to the evaluation of the 1000 Lives+ programme per se.

Before we could begin to address this issue, the notion of context demanded clarification. As Bate699 has recently commented, context is everything. However, there has been very limited systematic and independent analysis of the relationship between organisational factors, which shape the local context of health care, and the outcomes of patient safety interventions.124,216223 In this study, guided by the established approach to realist inquiry,228,241,242,247 we specified four main levels of contextual hierarchy: infrastructural system, institutional setting, interpersonal relations and individual. All levels except the individual are divided into substrata (see Figure 5). Through this depiction we sought to capture and convey the accumulated sense of contextual constraints and enablements, structural and cultural, which impact differently positioned actors within the Welsh health-care field to shape their scope and perceived discretion to act. Context was, therefore, conceptualised as ‘situated’. By this we mean that context is stratified, conditioned, relational and temporally dynamic.

Importantly, our view of context was reflected in our findings. At the level of the functional team, context was perceived to be distinct from that of the wider organisation. Indeed, it resonated with that of a bounded health-care managerial or clinical micro-work system.163,164,166,700704 Accordingly, we suggest that this finding challenges the use of the health-care organisation as a unit of analysis for patient safety programmes, as adopted in this study and as advocated in the ‘four high-priority’ features of organisational context.5,223,705 Indeed, our use of a comparative case-study design across major, district general and small community hospital sites within each participant health board was somewhat confounded.

In phase 1 of our analysis, despite the bureaucratic mandate to engage with the 1000 Lives+ programme that was evident at the field level of analysis (see Chapter 4), our examination of the normalisation of 1000 Lives+ at the suborganisational level (see Chapter 5) surfaced a complex pattern. At this level, discrete pockets of high adherence sat alongside areas of enforced but somewhat disengaged adoption. As such, even within case sites, it was not uncommon to find disparity between adjacent wards. In essence, two polarised types of situated context emerged. In the first type, 1000 Lives+ was normalised and absorbed into daily practice, becoming integral to care. In the second type of situated context, engagement with 1000 Lives+ was merely adsorbed (attached to but not fully integrated with) onto daily practice. It was then perceived to be an additional burden above and beyond the routine demands of health-care provision. The local implementation of the 1000 Lives+ programme was, therefore, positioned across a spectrum between these polarised stances. This highlights the transitional and fragile state of its progressive institutionalisation across NHS Wales. We therefore contend that focus directed at the level of the ‘micro-work system’163170,706711 may offer greater insight into the impact of patient safety improvement programmes at the point of patient-centred care. Indeed, this may even help to challenge Pawson’s iron law of evaluation: the expected value of any net impact assessment of any large-scale social program is zero.241

Contextual organisational factors pertinent to the health outcomes of hospital patient safety interventions

In this section we build on our conceptualisation of a situated context. Informed by our realist analysis of the local implementation of the 1000 Lives+ programme’s three focal interventions – ILQI, RSC and RHAI – we identify and analyse the supraorganisational and organisational factors in the Welsh health-care field which are pertinent to the health outcomes of these hospital patient safety interventions.

What supraorganisational factors matter: how, why and for whom?

In this study, we have drawn on the long-held view that multiple institutional logics co-exist.331 As illustrated in Figures 8 and 9, at the higher-order societal level, the balance between these logics shapes what is expected and accepted behaviour for broader society. Moreover, at the level of the Welsh health-care institutional field, their expression orchestrates the rituals, routines and practices constituting day-to-day professional work.38 The interplay between logics and their inherent tensions give rise to the institutional complexity that all health-care practitioners confront.712 Consequently, each individual – whether positioned as a policy lead in the Welsh Government, a health board chief executive or board-level director, or a hospital doctor, nurse or other aligned professional group – has to negotiate individually, and as part of a functional team, the consequences of countervailing, co-existent and complementary logics. Existence within such a system demands nuanced institutional work. This is typically executed through role and professional position-based power to attain a state of force majeure, or to broker a workable sense of reconciliation and compromise.713

Our findings indicate that the precise balance of the institutional logics moulding the Welsh health-care institutional field impacts patient safety in a particular way. First, the paradigmatic logic of bureaucratic command and control, which fosters mandated engagement with 1000 Lives+ via coercive institutional isomorphism, structures the health-care policy context for elite individuals such as policy leads, members of public sector partner agencies tasked with the strategic oversight of patient safety and board-level personnel in NHS Wales’ seven health boards.

Although this logic was dominant at the level of the infrastructural system, as illustrated in Figures 8 and 9, professional logic was found to dominate contextual strata at sub-board organisational levels across each health board. This gave rise to conflict between logics. In the example of the mandated completion of the WHO checklist, cited in Chapter 7, while the moral and pragmatic legitimacy of the 1000 Lives+ programme was promoted by the logic of policy leads and health-care managers, it was challenged by the logic of some groups of health-care clinical professionals. Importantly, it was not the central issue of patient care that promoted such contestation, but the means through which it was imposed. Mandated engagement was perceived in a pejorative light as a means of management control that eroded professional autonomy: a core component of professional logic.335,336 This created tensions that provoked decoupling from the goals and practices advocated by the 1000 Lives+ programme.

What organisational factors matter: how, why and for whom?

Our findings set out in Chapter 4 illustrated that the paradigmatic logic of bureaucratic command and control inculcated a pervasive performance measurement and management ethos across the Welsh health-care field. Mandated engagement with 1000 Lives+ was, therefore, legitimised as a core policy lever for health-care transformation. This clearly impacted on board-level actors in NHS Wales’ seven health boards. Specifically, it caused their actions to be directed to the (i) co-optation, negotiation and legitimisation of the distributed leadership of change across the relational structure of their personal managerial and professional networks; and (ii) the formalisation of patient safety governance processes, specifically the statutory Quality and Safety Committee, aligned to the Welsh National Quality and Safety Forum.

Such mandated engagement was, however, hindered by the challenges posed by the structural reconfiguration of NHS Wales. Indeed, our findings highlight that the emergence of health boards has (i) added management tiers, which now distort communication channels formerly shaped by proximity and close relational ties for health-care managers and health-care clinical professionals alike; and (ii) disrupted the relational structures of clinical micro-work systems due to clinical service reconfiguration across formerly distinct organisations. Furthermore, the profound challenges posed by the economic downturn impact patient safety and NHS Wales’ organisations engaged with 1000 Lives+ have to do ‘more with less’.

Reflecting on such issues at the level of the functional team added further insight into the nature of situated context. For example, the organisational factors impacting the focal intervention ILQI, set out in Chapter 6, were found to be closely integrated with the 1000 Lives+ programme’s position as a legitimised core policy lever for health-care transformation across NHS Wales. Formalised through the Welsh Government’s tier 1 targets, this structural constraint drove board-level engagement and severely limited the scope for decoupling. Moreover, it was compounded by demands for heightened transparency with respect to the publication of health board and discrete hospital site RAMI data (see Tables 1420) and board papers conveying the use of patient stories.

In addition, in the aftermath of the Francis Report,714 cultural constraints and enablements centred on heightening awareness of systemic failings and the need to foster a culture of high-quality compassionate care. This gave rise to the institutionalised division of delegated strategic oversight of patient safety – and thus 1000 Lives+ and ILQI – to the directors of medicine, nursing, and therapies and health science. Given the board-level status and professional role-positions of such actors, the inherent change agenda overarching the 1000 Lives+ programme and, thus, the ILQI were executed from a position of high negotiating strength.

Structural elaboration was, therefore, displayed across each case site. Indeed, an objective outcome of the ILQI was the normalisation of the three practices examined in Chapter 6. In addition, the relational structure at each site had evolved, promoting the diffusion of the ILQI, and thus the 1000 Lives+ programme, while engendering a culture of organisational learning. However, cultural change was restricted by medical disengagement – notably via challenge to the moral and pragmatic legitimacy of some components of the 1000 Lives+ programme. The two key issues we identified were the burden of documentation and weak feedback from boards to wards.

The organisational factors impacting at the level of the functional team for the focal intervention RSC and the associated WHOSSC, set out in Chapter 7, were, once again, shaped by the bureaucratic processes of formalisation emergent from the infrastructural system of the Welsh Government’s Department of Health and Social Care. However, in this regard, the overarching policy mandate of the 1000 Lives+ programme was augmented by the compulsion to undertake the WHOSSC forwarded by professional Royal Colleges.

Cultural constraints and enablements centred on the institutional system emblematic of the theatre departments. Two critical features surfaced in this study were a sense of separation from the broader health board that was compounded by distinctive functional and dominant professional cultures.

In essence, the local implementation of the RSC and the WHOSSC demanded skilful brokerage of institutional change across two groups of theatre department staff. The first group were consultant surgeons who lacked the burden of managerial accountability for the implementation of the RSC and WHOSSC, and who, therefore, were, quite simply, participants in its local operationalisation. This group of actors viewed the change with a degree of disdain: ’It was all quite an interesting shambles actually. The senior people decided that they were above it all basically’. The second group were consultant surgeons, supported by theatre managers, who were explicitly tasked with the strategic oversight of the local implementation of the RSC and the WHOSSC. Given the professional role-positions of such theatre department actors and the inherent change agenda overarching the 1000 Lives+ programme, the RSC and the WHOSSC were executed through negotiated compromise through multimodal institutional work.

Once again, as set out in Chapter 7, structural elaboration was evident across each case site. This was illustrated by the integration of the WHOSSC into governance processes. However, the openly acknowledged decoupling from such governance processes distorted coherence and commitment to the RSC and the WHOSSC by diminishing it to a tick-box exercise. Such a contested change highlights the time demanded to bring discordant professional logics into alignment. It also underscores the complexity of the prolonged period of creative institutional work required to promote the desired coalescence and unification at the cultural system level.

In contrast, the organisational factors impacting the focal intervention RHAI centred on the complex array of established alternative frameworks and ongoing surveillance of their effectiveness via the WHAIP. This was compounded by different but interlocking professional roles across the local IPAC team. Accordingly, in such a situated context, no appreciable change to practice was required and deinstitutionalisation did not occur. The 1000 Lives+ programme and RHAI were, therefore, blunted through adherence to alternative frameworks of perceived heightened professional legitimacy via institutional maintenance work.

Mechanisms that interact with contextual organisational factors to generate the health outcomes of hospital patient safety interventions

In this section, first, we reflect on the notion of a mechanism. Then we set out how our findings have identified critical mechanism substructures which impact the local implementation of the 1000 Lives+ programme.

From mechanism to causal configuration

In realist inquiry, mechanisms are considered to be the engines of explanation embodied in an agent’s reasoning and their selective attention to the disparate resources offered through a social programme.228,241,242 However, consideration of social actors’ contextually situated reflexive reasoning remains underdeveloped.256 One reason for this arises from the inherent problems associated with unpacking and conceptualising reasoning, specifically as justifications for choices may operate within different, and often contradictory, stances.321

The notion of ‘a mechanism’, in the sense of a unitary phenomenon, obscures its inherent structure and operation within a broader causal configuration. Hence, in this study, mechanism, while centred on agents’ reasoning, is theorised as part of a causal configuration emergent from a cluster of contextual factors and organisational components. These typically encompass a complex array of social structures, practices, relations, rules and resources. Yet, collectively, it is these factors which possess the powers, capacities and potentials to do certain things when operating in a spatio-temporal relationship with other objects.306,309,310 Conceptualised in this manner, mechanisms, and their attendant causal I-CMAO (CMO) configurations, may be embedded in another or configured in a series, so that the outcome of one configuration becomes the context for the next in the chain of implementation steps.307 This aspect of realist inquiry remains underdeveloped, as it demands the formulation of I-CMAO configurations, which pervade and connect contextual strata, in the form of bidirectional (top-down and bottom-up) nested causal cascades or metamechanisms.316318

In this study, our aim was to contribute to these conceptual challenges by examining the nuanced demarcation between context and mechanism across defined yet linked contextual strata, each involved in the operationalisation of the 1000 Lives+ programme within the Welsh health-care field. Hence, to examine the process of the local implementation of this complex and ambitious patient safety programme, we drew on two fundamental institutional processes – bureaucratisation and normalisation – which, we argue, operate as sociocultural and organisational metamechanisms. Bureaucratisation and normalisation, therefore, act as the underpinning carriers347 of the processes of health-care institutional change and ensuing practice-based change advocated by 1000 Lives+. In essence, it is through successful embedding within these fundamental metamechanisms that the patient safety programme becomes institutionalised.

Our findings from Chapters 48 illustrated three mechanism substructures, which collectively compose core components of the causal configuration for the local implementation of the 1000 Lives+ programme and further enrich our appreciation of the complex interplay of context and mechanism.

Mechanism substructure I: institutional isomorphism – mimetic, coercive and normative – coupling and decoupling

Institutional theory has arguably become the dominant approach for the study of macro-organisational phenomena.715 Indeed, in institutionally informed health-care research it is acknowledged that institutions are primary and mould the context in which the varied health-care actors’ interests operate.716 Dominant institutional logics are, therefore, a critical field-level mechanism717 that focus attention on the manner through which the attendant ‘culture’718 influences lower-level organisational change.719

As set out in Chapter 4, our findings indicated that, within the Welsh health-care field, institutionally prescribed values were orchestrated at field level and echoed at the organisational level of the Welsh Government and NHS Wales, though they manifested in a distinctive manner in functional subgroups. This stance has been identified in other complex, institutionally dense organisations.720 However, it was the discrete professions embedded within this institutional field that operated as the ‘pre-eminent institutional agents’, enacting isomorphic institutionalism through mimetic, coercive or normative means.404,721 Furthermore, our findings highlight that such institutional work engendered legitimacy which impacted strategy and culture as well as associated structures and processes, in part, due to the statutory accountabilities and governance structures enmeshed with patient safety practices across NHS Wales.

Voronov et al.722 have identified the important role of ‘glocalisation’ – fidelity to global norms with aligned adaptation to local conditions – in institutional maturation and change. In our study, this effect was apparent in the transmission of the IHI patient safety practices via mimetic isomorphic forces, driven by the dominance of the IHI’s position and their acceptance by elite institutional actors with close professional ties to policy leads within the Welsh Government. Indeed, our data highlighted that for social actors embedded within the policy domain of the Welsh Government, mimetic isomorphic forces drove acts of imitative entrepreneurship even for those who expressed questions over the legitimacy of the 1000 Lives+ programme. Mimetic isomorphism also arose through the institutional work of ‘believers’ in the 1000 Lives+ programme’s ethos and values, thereby catalysing co-optation and engagement of others. Yet despite the salience and assumed core values enshrined in the notion of patient safety, this institutional mechanism, as previously illustrated by Van Wijk et al.,723 was marred by the disruptive distributed brokerage of change.

Coercive institutionalism was apparent throughout our study. It emerged from dominating organisational structures tied to health-care policy, health board performance and the ‘legitimating rhetoric’724 of governance – external and internal – of patient safety. Yet this, too, was challenged by professional, predominantly medical, power-based structures of membership and specialism identity.725

In addition, isomorphic institutionalism through normative means was apparent in some long-established interventions, which had previously operated under the banner of the 1000 Lives campaign and, indeed, the Safer Patients Initiative, together with others associated with the 1000 Lives+ programme. However, as illustrated in Chapter 5, such normalisation was fragmented and isolated in discrete pockets.

Normalisation of the 1000 Lives+ programme was also associated with clear leadership of change, internal health-care practice maturation emergent from the MI-PDSA approach, and complex ‘boundary brokerage’34,91,726 to signal an identity for the programme, its adherents and associated health-care practices. The creative institutional work required to change beliefs, values and, through time, associated norms of practice was frequently displayed by actors occupying hybrid professional roles, including nurse-managers, associate directors with dual management and clinical portfolios, and board-level clinical practitioners. This finding parallels that of Reay et al.222,408

Our findings illustrated that, while the local implementation of the 1000 Lives+ programme fostered strong institutional coupling that was moulded by the institutional isomorphism inherent to its bureaucratisation and normalisation, the operationalisation of 1000 Lives+ in everyday practice was distorted by adaptive and maladaptive decoupling.

Adaptive decoupling arose in the focal intervention RHAI, as already established alternative IPAC guidelines and the ongoing surveillance of their effectiveness via the WHAIP were perceived to offer more rigor and, thus, heightened legitimacy across the core professional groups examined in our study. Hence given the embedded nature of such alternatives, and their aligned clinical practices, the 1000 Lives+ programme was simply circumvented.

In contrast, maladaptive decoupling was apparent in the local implementation of the focal intervention RSC, centred on the WHOSSC. Given the Welsh health-care policy commitment to this practice, as well as its world-wide professional advocacy,439,565,727 it is worth considering the means through which such maladaptive decoupling manifested, that is, the simple and common failure to identify the members of the theatre team in the checklist. This practice reduced the possibility of individuals being blamed for any failures, undermining belief in the WHOSSC as a meaningful practice. Indeed, such disruptive institutional work diminished the legitimacy and moral foundation of the practice and hindered the remoulding of underlying belief systems. Perceived as a threat to the entrenched professional dominance of surgeons, the resistance rendered the WHOSSC down to a tick-box exercise which was interpreted by respondents to demonstrate that it was having little effect on reducing error ’. . .across NHS Wales we’ve had disasters even with the checklist being used: wrong site surgery, instruments left in, etcetera . . . In other words it’s not being used properly’.

Mechanism substructure II: alignment of institutional logics – countervailing, co-existent and complementary – and ensuing coherence, cognitive participation and reflexive monitoring

At the level of the Welsh health-care institutional field, the nature of the alignment of institutional logics - be they complementary, co-existent or countervailing – impact patient safety. As discussed in Contextual organisational factors pertinent to the health outcomes of hospital patient safety interventions, What supra-organisational factors matter: how, why and for whom?, and as illustrated in Figures 8 and 9, this centred on the interplay of the logic of the bureaucratic state and professional logic. However, previous studies have illustrated that, within health care, professional logic does not manifest in unitary manner.37,38,222,373,728 Rather, different interprofessional logics and attendant institutions are displayed, each connected by some semblance of an overarching ‘logic of care’.373

Our findings illustrated the dynamic and complex nature of this relationship. When a complementary alignment of professional logics arose, as in the case of the focal intervention ILQI, coherence, cognitive participation and reflexive monitoring of the health-care practices advocated by the 1000 Lives+ programme was fostered, thereby aiding its normalisation in daily practice. In contrast, a countervailing alignment of logics, or their mere co-existence, was found to have stymied normalisation. Such varied permutations may be found both between different health-care professional groups, and within a discrete health-care professional group, and are typically dependent on two factors. The first is variation in individual practitioners’ reflexive theorisation, encompassing their discernment of the patient safety practice in question, deliberation over the issues and dedication to a chosen action guided by their situational logic. The second factor is variation in the situational logic apparent at the level of the functional team.

Normalisation, a pivotal stage of institutionalisation, was therefore found to be dependent on the actions of those who were the ‘believers’: perceiving meaning in 1000 Lives+ due to alignment with the beliefs and values of their professional logics. When such coherence manifested, it promoted cognitive participation and reflexive theorisation in the individual and, importantly, at the level of the functional team, building commitment and co-ordinated engagement with the programme across the bounded clinical micro-work systems. Underscoring the fundamental role of leadership and effective teamwork to orchestrate the actions of the functional team, such processes were central to local innovation and adaptation of the health-care practices advocated by 1000 Lives+ and appeared to be a viable means of developing micro-competences across the functional team.

Mechanism substructure III: relational structure – role position-practices and profession – and the power to change health-care practice

Across Chapters 48, our findings highlight the role of the relational structure of the functional team in the local implementation of the 1000 Lives+ programme. This mechanism substructure places attention on the human relationships. By this we mean the ties that bind the functional team, its orchestrating situational logic, ethos and values, and the presence of hierarchical or distributed leadership.729,730 These factors collectively impact team-level performance and, in turn, patient safety. Hence relational structure is moulded by the interplay of role position-practices and profession within the multidisciplinary team, and the power to change health-care practices is aligned to leadership functions across managerial and clinical micro-work systems.

In Chapters 48, those in professional role-position practices shaped by high levels of social capital – typically board-level managers and consultant medical or surgical health-care practitioners – were found to have had a valued role to play in reconfiguring other actors’ belief systems to support the local implementation of 1000 Lives+. Our findings therefore echo those that recognise the role of managerial, medical and nurse leadership in patient safety, especially in the brokerage of change across different functional teams.34,731,732 Despite this, there were some such actors who, as the following comment illustrates, overtly rejected the 1000 Lives+ programme: ’The 1000 Lives+ national programme and the campaign – it’s command and control rather than a grass roots culture change – it hasn’t been created by the people. It’s not of the people. It’s an imposition. It’s control. It’s from Cardiff. It’s very much a Cardiff thing that is being pushed to everyone else because: “we know better”. Outside Cardiff, it feels remote and distant and not part of us, it’s something that we all recognise as important, clearly, but we don’t necessarily own it’.

However, such demonstrable leadership was not the exclusive jurisdiction of high-status actors. Social actors across an array of managerial and clinical roles, who expressed their belief in the 1000 Lives+ programme and actively engaged in creative institutional work to imbue a similar sense of meaning in others, were undeniably central to the local implementation of 1000 Lives+ and the ongoing discourse of patient safety across NHS Wales. This was expressed in the view that ’Clinical leadership is key – credible clinical leadership – and that’s all about empowerment of Band 7 nurses’, underscoring the empowerment and emancipation of those in roles traditionally subordinate to the profession of medicine. Therefore, in supporting staff at all levels, an important outcome of the 1000 Lives+ programme was the progressive erosion of entrenched professional barriers that prohibit challenge and scope for health-care practice change.

Mediation and reflexive theorisation

In defining such mechanism substructures, our findings help to reveal how the structural constraints and enablements of context are mediated to social actors engaged in the local implementation of the 1000 Lives+ programme. As expanded in Chapter 2, these influences give rise to four potential second-order emergents, which foster the accompanying situational logics of protection, correction/compromise, opportunism and elimination, thereby guiding the generative mechanisms in play.

Our findings illustrated that the focal intervention ILQI drew professional logic into alignment with that of the bureaucratic state. This fostered the systematisation of 1000 Lives+ and ILQI across the cultural system level of NHS Wales and promoted the reproduction of such practices across each health board. Consequently, at board level, ILQI operated under a situational logic of protection that guided sociocultural interaction, agency, strategic negotiation and ensuing modes of institutional work.

The focal intervention RSC, centred on the local implementation of the WHOSSC, confronted a more contested terrain, with the coalescence and cohesion manifest between the views of theatre managers, consultant surgeons tasked with the implementation of the WHOSSC, and theatre nurses, stymied by the countervailing stance adopted by some surgeons. These constraining contradictions (necessary incompatibilities) between the dominant logic of the bureaucratic state and aligned professional health-care management logic versus that of professional medical logic held by surgeons opposed to the introduction of the WHOSSC therefore created a situational logic of correction/compromise. This logic guided sociocultural interaction, agency, strategic negotiation and ensuing modes of institutional work along its disrupted path.

The focal intervention RHAI emerged into a context moulded by internal and necessary linkages of a complementary nature to existing structures. Nonetheless, a situational logic of protection of the status quo ante manifested. Reflexive monitoring was found to be anchored to the past, to preferred and more highly rated organisational and professional processes currently in use. Under these conditions, there was only superficial interest in and action to engage with RHAI.

Development and hypothesis testing of relationships between contextual organisational factors, mechanisms and the health outcomes of hospital patient safety interventions

In this study, we sought to develop and test hypothesis regarding the nature of the relationships between contextual organisational factors, mechanisms and the health outcomes of hospital patient safety interventions. Yet given the ontological commitment to critical realism, set out in Chapter 2 (see Addressing the challenges of realist enquiry, Realist social theory) and Chapter 3 (see Comparative case study approach, Ontological and epistemological alignment to realist analysis), such hypothesis testing was markedly different from that commonly adopted in positivistic studies. In essence, our approach centred on the progressive explanation and refinement of our understanding of the local implementation of the 1000 Lives+ programme, and the three focal interventions considered in more depth, all framed through our I-CMAO configurations.

Across Chapters 48, this approach revealed the nuanced relationships associated with the bureaucratisation and normalisation of the 1000 Lives+ programme, as illustrated in the explanatory schematics and accompanying data tables. What emerged from our data was the role of structural and cultural conditioning on the individual, embedded at the level of the functional team – managerial and clinical – and their ensuing disposition and scope to act to effect institutional change in support of patient safety. Such social structure, understood as the internal and necessary relations between social positions and positioned-practices, gave rise to emergent causal powers as the material cause of social activity.733735 Perceived through our non-reductionist critical realist ontological stance, patient safety is, therefore, an emergent property of the micro-level organisation of health care.

In examining the bureaucratisation and normalisation of the 1000 Lives+ programme, together with the local implementation of the three focal interventions selected, the underpinning role of the MI-PDSA approach, depicted in Figures 211, was revealed. 1000 Lives+, together with this core resource, were found to have become ’part of the patient safety language of NHS Wales’ . . . ’PDSA cycles and all of that stuff it’s created a language that they like: it’s language that they all understand’. That, supported by the 1000 Lives+ dedicated website, and aligned resources from Improving Quality Together and Patient Safety Wales, now provide the means to spread such practices across NHS Wales.

However, although innovation through identifying failings and honing local knowledge and skills to change health-care practice was evident throughout our study, there were those who challenged the evidence that the programme was working: ‘The evidence-base for the 1000 Lives+ national programme has been systematically attacked by the other factions – for one side, it’s evidence and truth; for the other, it’s spin and fluff – and reality is caught in the middle’.

Limitations of the study

Although we contend that our realist analysis framework presents an innovative and suitable means to address the research questions posed, we must acknowledge inherent limitations. There are three main sets of limitations to this work: (1) those posed by the processs of realist analysis itself, (2) those consequent on any qualitative social science research, and (3) those posed by a lack of the type of quantitative data which would have added further validity to our findings.

The most significant limitation in producing a narrative which is true to the tenets of critical realism is in the abstraction, abduction and retroduction inherent to the data analysis. Abstraction draws out the various components within the situated context, facilitating the conceptualisation of their interplay, through combination and interaction, so that the researcher may gain new insight.310 Abduction involves the production of an elementary account of a basis process or mechanism.363 Retroduction builds on this analytical stage. The aim is to reconstruct the basic conditions for such phenomena to be what they are, so fostering knowledge of the transfactual conditions, structures and mechanisms in play.363 In this study, this process was aided by the hierarchical bureaucratisation of the Welsh health-care institutional field, which facilitated the explication of the internal and necessary relationships underpinning structural and cultural emergent properties.

To be adequate, as noted by Herepath,342 this approach must abstract from particular conditions, excluding those which are believed to have no significant effect, in order to focus on those which do and identify relations of different types: ‘substantial’, ‘formal’, ‘external or contingent’ and ‘internal or necessary’.310 Only once this step has been achieved may it be possible to combine or synthesise the various separate understandings into a unity that reconstitutes, or provides a better understanding of, the concrete.736 Thus, an explanatory structure is devised through a combination of theory and experimental observation.228

Inevitably, such analysis is open to the criticism that, as it must be influenced by the investigator’s perspective, beliefs and experience, the data represent only individual interpretation. To counter such criticism we made considerable efforts to ensure the data collected were as robust as possible. We achieved this triangulation of data collection by accessing documentary evidence and conducting on-site observation, as well as interviewing a large and varied number of individuals.

A further limitation of our study is our inability to derive detailed linkage of quantitative data to the qualitative data relating to each specific intervention studied. Paradoxically, given the engagement in the study of all seven of the health boards in NHS Wales, detailed linkage of quantitative data was prohibited as it would have proved impossible to ensure anonymisation at organisational, hospital case site and individual level. The best we were able to do was to accommodate for this deficit by giving illustrative public source data for each health board, as set out in Tables 1420 (RAMI data), Tables 25 and 26 (‘never events’ across NHS Wales’ health boards) and Tables 31 and 32 (MRSA per 100,000 bed-days and S. aureus per 100,000 bed-days).

Possible applications

As this study centred on the local implementation of the 1000 Lives+ national patient safety programme across NHS Wales, a substate nation with devolved oversight of health-care policy, it is pertinent to consider to what extent our findings may be applicable to other developed or developing health-care systems.

There is, of course, a global debate on patient safety, and patient safety programmes have been widely integrated into developed health-care systems on a world-wide scale. In that sense, some of the processes and practices seen in our study of the implementation of 1000 Lives+ in NHS Wales may well be identified in other settings and, therefore, offer insights into other similar processes and practices elsewhere. Nevertheless, the extent to which our findings may be directly transferable to other health-care systems implementing major programmatic changes is limited by a number of factors.

First, as presented in Chapter 4, NHS Wales is shaped by a distinctive health-care policy trajectory in which engagement with the 1000 Lives+ programme is mandated and monitored. This created a health-care institutional field moulded by coercive isomorphism in addition to the normative and mimetic modes more typical to studies of the diffusion of patient safety practices.358

Furthermore, the study period overlapped the period of transition following the reconfiguration of health services in Wales. As such, health boards, through the merger of other former NHS Wales’ hospital trusts with primary care organisations, were newly established. Each organisation, therefore, confronted a strategic agenda burdened by the managerial demands of reconfiguration, including change to management cadres and clinical director roles, together with the politicised and public constraints fostered through the ongoing reconfiguration of hospital service provision across each territory. Though such circumstances are far from unique in developed health-care systems, they were distinctively shaped by the particular context of health care in Wales, and these factors do limit the degree to which the lessons learned from this study may be transferable to other settings.

Another limitation of applicability is that, although in our research protocol our case site selection criteria encompassed a major hospital, an intermediate hospital and a small local community hospital within each health board, to offer a desirable mix of different organisational features the strategic oversight of the 1000 Lives+ programme and its leadership was predominantly centred within the major hospital sites. Indeed, the 1000 Lives+ programme was, ostensibly, acute in its focus, with fewer interventions applicable to small case hospitals. This limited our scope to explore the implementation of each focal intervention across the range of organisations. Our findings are, therefore, more broadly applicable to large and intermediate hospital settings.

Case study participants were initially selected by the research team’s local contact at each case site and, thus, a degree of bias must be acknowledged. However, we sought to mitigate this issue through our use of a snowball sampling strategy, as discussed in Chapter 3. As evidenced by the candid and occasionally very blunt comments embedded in Chapters 48, the research team is confident that the data collected accurately represented the views of those interviewed, although, as a degree of self-selection was involved, we cannot discount the possibility that others who were not interviewed might have held different views.

Despite these caveats, however, we would argue that, at the micro-level of functional teams in wards and departments, the processes and practices of implementation identified in this study may well mirror those to be found in similar circumstances in other health-care systems, and that our findings may thus have relevance and offer lessons to be learned elsewhere.

Contribution of the study to patient safety research

This study offers conceptual, methodological and empirical contributions to patient safety research. In conceptual terms, we developed a theoretically grounded and evidence-based realist model of which organisational factors matter, how they matter and why they matter. To do this, we introduced conceptual resources from sociological institutionalism and Archerian critical realism to address challenges associated with applying realist inquiry. Our model incorporates four elaborations of the established approach to realist inquiry.

First, so that we may understand precisely ‘what’ is working, for whom, how and in what circumstances, we include intervention as a separate analytical category in our realist analysis. Second, we forward a view of ‘situated context’ as stratified, conditioned, relational and temporally dynamic. This involves identifying the dominant structural and cultural emergent properties in play and separating context from its mediation. Third, we apportion mediation and reflexive theorisation to mechanism. In this manner, we distinguish the conceptual elements of mechanism from its ensuing outcomes, which include the agential emergent properties, expressed through the unfolding strategic negotiation of change, and the mode of institutional work enacted, to deliver sustainable outcomes, be they elaborative or reproductive. This fine-grained realist analysis therefore explicates the fundamental role of beliefs and values – institutional logics – on the propensity to act, to reveal the contested nature of institutional change, health-care practice evolution, and thus social elaboration or, indeed, reproduction. Finally, in our realist analysis framework, outcome is not perceived as a simple, single aspect of change, such as a defined health outcome. Rather, we reveal structural and ideational differentiation, together with the regrouping inherent to the power play of the diverse array of agents embroiled in the institutionalisation of a complex patient safety improvement programme.

In methodological terms, this is one of the first studies of patient safety to apply realist philosophy of social science across inception, design, fieldwork, analysis and writing. This has generated a number of features that may inform and challenge the field of patient safety research.

First, in contrast to the majority of health services research studies, this study has taken seriously, and explicated, realist epistemology and ontology. These foundations of our research conditioned its design, conduct and reporting. They helped shape our concern for ontological depth and contextual strata, and they directed us towards the identification and explanation of the underlying generative mechanisms which shape structure, agency, social relations and the ensuing practices that are reproduced and/or transformed. In terms of analysis, this is one of the first health services research studies to conduct abstraction, abduction and retroduction363 to devise an explanatory structure through a combination of theory and experimental observation. While we have earlier noted the challenges posed by this approach, we believe that this study has demonstrated the value of the analytical approach in helping to reconstruct the basic conditions for focal phenomena to be what they are, so fostering knowledge of the conditions, structures and mechanisms in play. In addition, the conclusions of our realist analysis are recognised to be both provisional and fallible.

In terms of empirical contribution, for each of the three focal interventions of 1000 Lives+ programme, this study offers a nuanced explanation of how local conditions relating to each level of our stratified model of context differentially combine with mechanisms (the engines of explanation embodied in people’s reasoning) to derive outcomes in terms of structural and cultural reproduction or change. Reflecting social reality, these causal configurations are complex and nested. To aid our elucidation of these configurations we augment our textual description with a series of graphics. This approach to presentation of our findings allows us to clearly specify how particular configurations of factors across multiple layers of context (e.g. logics, power relations) combine with two metamechanisms (bureaucratisation and normalisation) and three submechanisms (isomorphism, logic alignment and relational structure) to generate outcomes that are variously viewed as more or less successful by multiple stakeholders.

We believe these findings will provide a valuable resource for policy-makers, managers and practitioners, locally, nationally and internationally, and will enable stakeholders to develop improvement interventions that are more likely to ‘work’ (for specified stakeholders) in their local contingent circumstances. They may also serve as a diagnostic tool to be used as a precursor to the design of more differentiated and context-sensitive interventions in future.

Future project outputs

This report addresses gaps in conceptual, methodological and empirical knowledge about the influence of context on the local implementation of patient safety programmes so that we may discern which contextual factors matter – how, why and for whom – in order that processes and outcomes of future improvement programmes may be improved. Future research outputs will seek to contribute to a broad range of academic and professional literatures.

Active dissemination of emergent findings to academic audiences has commenced via participation in relevant national and international conferences [Academy of Management (US); British Academy of Management; European Group for Organizational Studies; Health Services Research Network; International Organisational Behaviour in Healthcare; International Research Society for Public Management]. Dissemination will now continue through the submission of papers to leading academic journals. The first of such papers is currently under review.

As well as disseminating our findings to academic audiences, we intend to work with case site organisations in NHS Wales and, potentially, to reach out to a wider audience in NHS England, through a series of interactive seminars for health-care policy and professional audiences. These discussions will be disseminated through publications targeted specifically at NHS professional audiences including, for example, the Health Service Journal.

Future research

While the work conducted in this study could be developed in a number of ways, we believe that three options are most promising.

First, although this study adopted the organisation as the primary unit of analysis, we now consider that the micro-work system – managerial and clinical – could be a more fruitful unit of analysis from which to develop further insight into the implementation of patient safety programmes. Indeed, this offers the potential to examine the complexity inherent to the delivery of patient-centred care across discrete care pathways, thereby spanning organisational boundaries between primary, secondary and, potentially, tertiary-based functional teams. Such an approach, we believe, will help to explicate the true demands of leadership, followership, and empowered and emancipated team working, which underpin health-care practice innovation and commitment to the delivery of health care of the highest quality for all.

Second, this study has placed great significance on the role of, and interplay between, logics operating across the multiple strata of our model of context. In our case based in Wales, a critical dynamic occurs between the field level, where the paradigmatic logic of bureaucratic command and control shapes the activity of elite actors, while actors at sub-board organisational levels are influenced primarily by professional logics. It will, therefore, be important to compare the processes and outcomes from that context with (i) settings with similar institutional arrangements (possibly Scotland), and (ii) arenas with alterative arrays of dominant logics across contextual strata (possibly England, where the dominant paradigmatic logic is competition augmented by devolution and transparency).

Furthermore, given the mandated nature of engagement with the 1000 Lives+ programme in our study, and the tensions thereby fostered for some health-care clinical professionals, it will also be important to compare future patient safety interventions which emerge at the level of the functional team so that their insights may be effectively harnessed and their diffusion aided within, and across, health-care organisations.

Finally, this study has illustrated the complex interplay that lies behind the 1000 Lives+ programme’s summary I-CMAO configuration. Indeed, it has exposed that distinctive ‘cultures of care’ emerged and operated throughout the local implementation of the 1000 Lives+ programme. These ranged from ‘discrete pockets of high adherence’ to situated contexts of ‘enforced but somewhat disengaged adoption’. This finding demonstrates the time and institutional work needed to achieve change amid competing priorities, contested professional values and notions of control. Future research should address the relational dynamics of the functional team within a situated context to refine our understanding of high-performing micro-work systems and thus penetrate beyond the illusory notion of a cohesive culture of care.

Priorities for practice

Below, we set out the implications of our findings for realist informed research and the design and operationalisation of complex patient safety interventions.

Realist analysis

The realist analysis undertaken in this study is different from established approaches to realist inquiry. It is neither a realist evaluation of the success or failure of the 1000 Lives+ patient safety programme, nor a realist synthesis of extant data to inform the future redesign of the 1000 Lives+ patient safety programme and associated policy in NHS Wales. Rather, as set out in in the introduction to this report, our approach to realist analysis defines an alternative means to analyse the complex interplay of this patient safety intervention within a specified ‘situated’ context. This creates challenges and opportunities for the field.

The challenges posed are primarily conceptual and methodological, and arise from the need to integrate distinct research traditions – realist inquiry, critical realism and institutional theory – with the information to be assimilated from aligned medical, health-care policy and health-care organisational and professional fields. However, we would argue that the opportunities offered by the adoption of our approach, and the generation of I-CMAO configurations within other studies, arise from the more nuanced understanding to be gained of the organisation and operation of developed health-care safety practices at the level of the functional team. This, we consider, possesses the potential to enrich our understanding of the emergence of patient safety as a dynamic capability within high-performing health-care teams, thereby informing the design of patient safety interventions.

Realist analysis: refinement of the concepts of context and mechanism

Our conceptual refinement of the situated context of care suggests that future patient safety research will need to consider context as more than a mere amorphous residual. While it may not be practicable for all research designs to actively embrace our stratified, conditioned, relational and temporally dynamic approach, a heightened awareness and account of context will foster cumulative insight and contribute to appreciation of the locus of change within complex health-care systems or discrete organisations.

Similarly, in future realist informed research, apportioning both the mediation of contextual forces and reflexive theorisation to mechanism will help to refine our understanding of what drives social agents – be they organisations, professions or individuals – to actively embrace and normalise a new patient safety practice or reject and retard such change. This will help to clarify the role of that such mechanisms play within larger and more complex causal configurations.

Realist analysis: refinement of agency and outcome

This study suggests that the combination of Archerian critical realism and institutional theory offers a robust means to examine mechanism across aligned or conflicted institutional logics in different organisational and professional jurisdictions. This feature of an I-CMAO configuration, therefore, helps to further inform our understanding of the operationalisation of patient safety practices, specifically by offering insight into the actions that unfold within and across functional teams. Accordingly, both patient safety research and the implementation of such interventions will benefit from an enhanced understanding of practice, centred on the unfolding strategic negotiation of change and mode of institutional work enacted to deliver sustainable outcomes.

Design of patient safety improvement programmes

This study demonstrates that complex patient safety interventions, though targeted at whole-systems or multisite health-care organisations, do not embed and normalise into practice in such a totalising manner. Rather, acceptance and adherence is piecemeal and fragmented. This suggests that their design may be more logically framed at the level of the functional team and associated discrete high-risk health-care practice. This has marked implications for the leadership of localised change and support provided, and the emancipation of front-line health-care professionals may further the development of innovative patient safety practices at the point of care.

Oversight of the implementation and operationalisation of patient safety improvement programmes

This study has demonstrated a significant cause for concern by capturing the ready acceptance of gaming,405 under a legitimacy façade, that obscures the failure to adhere to recommended patient safety practices. Such actions are diverse – ranging from hollow engagement with WalkRounds and disconnected recording of the WHOSSC in computer-based systems to the overt ‘performance’ of observed hand-washing – but they suggest the need for (i) clearly visible and meaningful leadership of patient safety and (ii) integration of the oversight of patient safety programmes into corporate governance and organisational development programmes, with ensuing accountability for performance and staff development. To this end, as outlined in Chapter 5 (specifically in the sections Putative mechanisms fostering and normalisation of 1000+ Lives, Cognitive participation and Collective action), cognitive participation is an essential component of collective action to ensure that systemic and organisational factors giving rise to patient neglect are addressed, while knowledge sharing and trust are enhanced.

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Copyright © Queen’s Printer and Controller of HMSO 2015. This work was produced by Herepath et al. under the terms of a commissioning contract issued by the Secretary of State for Health. This issue may be freely reproduced for the purposes of private research and study and extracts (or indeed, the full report) may be included in professional journals provided that suitable acknowledgement is made and the reproduction is not associated with any form of advertising. Applications for commercial reproduction should be addressed to: NIHR Journals Library, National Institute for Health Research, Evaluation, Trials and Studies Coordinating Centre, Alpha House, University of Southampton Science Park, Southampton SO16 7NS, UK.

Included under terms of UK Non-commercial Government License.

Bookshelf ID: NBK316545

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