Background

Health care organizations increasingly implement clinical decision support systems (CDSSs) due to rising treatment costs and health care professional staff shortages [1, 2]. CDSSs provide passive and active referential information, computer-based order sets, reminders, alerts, and patient-specific data to health care professionals at the point of care by matching patient characteristics to a computerized knowledge base [1, 3, 4]. These systems complement existing electronic health record (EHR) systems [5] and support various functional areas of medical care, such as preventative health, diagnosis, therapy, and medication [6, 7]. Research has shown that CDSSs can improve patient safety and quality of care [8,9,10] by preventing medication errors and enhancing decision-making quality [11]. However, despite their potential benefits, their successful implementation into the clinical workflow remains low [1, 12]. To facilitate CDSS acceptance and minimize user resistance, it is crucial to understand the factors affecting implementation success and identify the sources of resistance among the users [1, 13, 14].

In the health care innovation management and implementation science literature, a range of theoretical approaches have been used to examine the implementation and diffusion of health care information technologies. Technology acceptance theories focus on key determinants of individual technology adoption, such as ease of use, perceived usefulness or performance expectancy of the technology itself [15,16,17]. Organizational theories emphasize the importance of moving beyond an exclusive focus on the acceptance of technology by individuals. Instead, they advocate for examining behaviors and decisions with a focus on organizational structures and processes, cultural and professional norms, and social and political factors such as policies, laws, and regulations [18, 19]. Other studies analyze the implementation of new technologies in health care from a behavioral theory perspective [20] and propose frameworks to explain how and why resistances emerge among users, which may have cognitive, affective, social, or environmental origins [13, 21, 22]. For example, the Theoretical Domains Framework has been applied to the behavior of health care professionals and serve as the basis for studies identifying influences on the implementation of new medical technologies, processes, or guidelines [21, 23]. Other, more holistic, implementation frameworks, such as the Nonadoption, Abandonment, Scale-up, Spread and Sustainability framework, identify determinants as part of a complex system to facilitate CDSS implementation efforts across health care settings [13].

However, these theoretical approaches do not sufficiently take into account the unique organizational and social system in hospitals, which is characterized by strong hierarchies and the socialization of physicians into isolated structures and processes, making CDSS implementation particularly difficult [5, 24, 25]. Health care professionals are considered to have an entrenched professional identity characterized by the acquisition of a high level of expertise and knowledge over a long period of time, as well as by their decision-making authority and autonomy in clinical interventions. Defined roles and structures of different professional groups in medical organizations help to manage the multitude of tasks under high time pressure [26]. In addition, heath care professionals bear a high degree of responsibility in terms of ensuring medical quality and patient well-being [27]. Changing their professional identity is particularly difficult as they work in organizational contexts with high levels of inertia and long-lived core values based on established practices and routines [27]. This resilience of health care professionals’ identity makes it particularly difficult to implement new technologies into everyday medical practice [28].

By integrating existing evidence into an individual physician’s decision-making processes, CDSSs carry the disruptive potential to undermine existing, highly formalized clinical knowledge and expertise and professional decision-making autonomy [5, 24, 29, 30]. Research has shown that health professionals may perceive new technologies, such as CDSSs, as a threat to their professional identity and draw potential consequences for themselves and their professional community, such as the change of established organizational hierarchies, loss of control, power, status, and prestige [31,32,33]. Nevertheless, other studies have shown that health professionals view CDSSs as tools that increase their autonomy over clinical decisions and improve their relationship with patients [34, 35]. In addition, these consequences may vary widely by country, professional status, and medical setting. As a result, the use and efficacy of CDSSs differ around the world [24]. We therefore suggest that a better understanding of the identity-undermining or identity-enhancing consequences of CDSSs is needed. Despite growing academic interest, there is surprisingly scant research on the role of perceived identity threats and enhancements across different professional hierarchies during CDSS implementation and how they relate to other human, technological, and organizational influencing factors [5, 36, 37].

Therefore, the purpose of this narrative review is to analyze the state of knowledge on the individual, technological, and organizational circumstances that lead various health professionals to perceive CDSSs as a threat or enhancement of their professional identity. In doing so, this study takes an exploratory approach and determines human, organizational, and technological factors for the successful implementation of CDSSs. Our study extends the current knowledge of CDSS implementation by deconstructing professional identity related mechanisms and identifying the antecedents of these perceived threats and enhancements. It addresses calls for research to explore identity theory and social evaluations in the context of new system implementation [5, 38, 39] by aiming to answer the following research questions: What are the human, technological, and organizational factors that lead different health care professionals to perceive a CDSS as a threat or an enhancement of their professional identity? And, how do perceptions of threat and enhancement of professional identity influence CDSS implementation?

This study is designed to guide medical practice, health IT providers, and health policy in their understanding of the mechanisms that lead to conflicts between health professionals’ identity and CDSS implementation. It is intended to identify practices that may support the implementation and long-term use of CDSSs. By narratively merging insights and underlying concepts from existing literature on innovation management, implementation science, and identity theory with the findings of the empirical studies included in this review, we aim to provide a comprehensive framework that can effectively guide further research on the implementation of CDSSs.

Understanding professional identity

Following recent literature, professional identity refers to an individual’s self-perception and experiences as a member of a profession and plays a central role in how professionals interpret and act in their work situations [25, 37, 40,41,42]. It is closely tied to a sense of belonging to a professional group and the identification with the roles and responsibilities associated with that occupation. Professionals typically adhere to a set of ethical principles and values that are integral to their professional identity and guide their behavior and decision-making. They are expected to have specialized knowledge and expertise in their field. In return, they are granted a high degree of self-efficacy, autonomy, and ability to act in carrying out these tasks [25, 43]. In addition, professionals make active use of their identities in order to define and change situations. Self-continuity and self-esteem encourages these professionals to align their standards of identification with the perceptions of others and themselves [44]. Many professions have formal organizations or associations that promote and regulate their shared professional identity [45]. Membership in these associations, adherence to their standards and to a shared culture within their field, including common rituals, practices, and traditions, may reinforce their professional identity [33, 36, 45].

Studies in the field of health care innovation management and implementation science reported a number of professional identity conflicts that shape individual behavioral responses to change and innovation [5, 24, 33, 36, 45, 46]. The first set of conflicts relates to individual factors and expectations, such as their personality traits, cognitive style, demographics, and education. For example, user perception of a new technology can be influenced by professional self-efficacy, which can be described as perceived feeling of competence, control and ability to perform [47]. Studies have shown that innovations with a negative impact on individual’s sense of efficacy tend to be perceived as threatening, resulting in a lower likelihood of successful implementation. Users who do not believe in their ability to use the new system felt uncomfortable and unconfident in the workplace and were more likely to resist the new system [48, 49].

The second set of studies relates professional identity to sense-making, which involves the active process of acquiring knowledge and comprehending change based on existing professional identities as frames of references [50]. For example, Jensen and Aanestad [51] showed that health care professionals endorsed the implementation of an EHR system only if it was perceived to be congruent with their own role and the physician’s practice, rather than focusing on functional improvements that the system could have provided. Bernardi and Exworthy [52] found that health care professionals with hybrid roles, bearing both clinical and managerial responsibilities, use their social position to convince health care professionals to adopt medical technologies only when they address the concerns of health care professionals.

The final set of studies address struggles related to a disruption of structures and processes that lead to the reorganization of the health professions [53, 54] and the introduction of new professional logics [55]. These can result in threat perceptions from the perspective of health professionals regarding their competence, autonomy, and control over clinical decisions and outcomes. Accordingly, the perception of new systems not only influences their use or non-use, but implies a dynamic interaction with the professional identity of the users [56]. CDSSs may be perceived as deskilling or as a skill enhancement by reducing or empowering the responsibilities of users and thereby as compromising or enhancing the professional role, autonomy and status.

Taking the classical theoretical frameworks for the evaluation of health information systems [57] and this understanding of professional identity as a starting point, our narrative review identifies, reinterprets, and interconnects the key factors to CDSS implementation related to threats or enhancement of health professionals’ identity in different health care settings.

Method

We conducted a comprehensive search of the Web of Science and PubMed databases to identify peer-reviewed studies on CDSS implementations published between January 2010 and September 2023. An initial review of the literature, including previous related literature reviews, yielded the key terms to be used in designing the search strings [1, 49]. We searched for English articles whose titles, abstracts, or keywords contained at least one of the search terms, such as “clinical decision support system,” “computer physician order entry,” “electronic prescribing,” or “expert system.” To ensure that the identified studies relate to CDSS implementation, usage, or adoption from the perspective of health care organizations and health care professionals, we included, for example, the words “hospital,” “clinic,” “medical,” and “health.” The final search strings are provided in Table S1 (Additional file 1). We obtained a total of 6212 articles. From this initial list, we removed 1461 duplicates, 6 non-retrievable studies, and 1 non-English articles. This left us with a total of 4744 articles for the screening of the titles, abstracts, and full texts. Three authors independently reviewed these articles to identify empirical papers which met the following inclusion criteria: (a) evaluated a CDSS as a study object, (b) examined facilitating factors or barriers impacting either CDSS adoption, use or implementation, (c) were examined from the perspective of health care professionals or medical facilities, and (d) represented an empirical study. We identified 220 studies that met our inclusion criteria. The three authors independently assessed the methodological quality of these 220 selected studies using the Mixed Methods Appraisal tool (MMAT), version 2018 [58]. The MMAT can be used for the qualitative evaluation of five different study designs, i.e., qualitative, quantitative, and mixed methods approaches. It is a qualitative scale that evaluates the aim of a study, its adequacy to the research question, the methodology used, the study design, participant recruitment, data collection, data analysis, presentation of findings, and the discussion and conclusion sections of the article [59]. One hundred thirty-one studies were included in the review after excluding studies based on the MMAT criteria, primarily due to a lack of a defined research question or a mismatch between the research question and the data collected [58]. Any disagreement about the inclusion of a publication between was resolved through internal discussion. Figure 1 summarizes our complete screening process.

Fig. 1
figure 1

Overview of article screening process

The studies included in the review were then subject to a qualitative content analysis procedure [60, 61] using MAXQDA, version 2020. For data analysis, we initially followed the principle of “open coding” [62]. We divided the studies equally among the three authors, and through an initial, first-order exploratory analysis, we identified numerous codes, which were labeled with key terms from the studies. Based on a preliminary literature review, we then developed a reference guide with the main categories of classic theoretical frameworks for health information systems implementation (human, technology, organization) [57] and further characteristics of the study. Second-order categories were obtained through axial coding [62], which reduced the number of initial codes but also revealed concepts that could not be mapped to these three categories (i.e., perceived threat to professional autonomy and control). This allowed us to identify concepts related to professional identity. Subsequently, a subset of 10% of the studies was randomly selected and coded by a second coder independently of the first coder [63]. Then, an inter-coder reliability analysis was performed between the samples of coder 1 and coder 2. For this purpose, Cohen’s kappa, a measure of agreement between two independent categorical samples, was calculated. Cohen’s kappa showed that there was a high agreement in coding (k = 0.8) [64]. We coded for the following aspects: human, organizational, technological, professional identity factor conceptualizations, dependent variables, study type and type of data, time-frame, clinician type sample, description of the CDSS, implementation phase [65], target area of medical care [7], and applied medical specialty. Tables 2, 3, 4, 5, 6 and 7 and Table S2 provide detailed data as per the key coding categories.

Findings

Descriptive analysis

A total of 131 studies were included in our review. In line with recent reviews of CDSS implementation research [6, 14, 57], the reviewed articles are distributed widely across journals (Table 1).

Table 1 Journals and their 5-year impact factors

The examined articles were drawn from 69 journals, 55 of which provide only one article. The BMC Medical Informatics and Decision Making and International Journal of Medical Informatics published nearly a third of the included studies, with 67 articles overall in medical informatics journals. There are additional clusters in medical specialty-related (33), health services, public health, or health care management-related (12), and implementation science-related (2) journals. The journals’ 5-year impact factor measured in 2022 ranged between 2.9 and 9.7. Of our included articles, 67 were published between 2010 and 2016, while 64 were published between 2017 and 2023.

The review includes a mixture of qualitative (n = 61), quantitative (n = 40), and mixed methods (n = 30) studies. Unless otherwise noted, studies indicated as qualitative studies in Table S2 involved interviews and quantitative studies involved surveys. Interviews with individual health care professionals were the most common data collection method used (n = 38), followed by surveys (n = 58), and focus group interviews (n = 25). Most of the interviews were conducted with physicians (n = 60) and nursing professionals (n = 23). The studies were performed at various sites and specialties, with primary care settings (n = 35), emergency (n = 11), and pediatric (n = 6) departments being represented most frequently. Forty-five articles researched exclusively physicians and 10 covered nurse practitioners as respondents in their sample. Four studies surveyed pharmacists, one study surveyed medical residents as a single target group, and 20 articles included clinical leaders in addition to clinicians to their sample. Twenty-eight studies were longitudinal, although studying system implementation at one point in time will insufficiently explain the expected impact of the novel system on, e.g., the organizational performance outcomes over time [67]. The studies collected data in 29 different countries, with the most common being the USA (n = 41), the UK (n = 18), and the Netherlands (n = 11).

Included studies were additionally coded according to the implementation phase in which the study was conducted (i.e., exploration, adoption/preparation, implementation, sustainment phase) [65]. In 43 of the included studies, the analysis was conducted during the exploration phase, i.e., during a clinical trial or an exploration of the functionality and applicability of a CDSS. Nineteen studies were conducted in the active implementation phase, 15 studies in an implementation adoption or preparation phase, and 46 studies in a sustainment phase (i.e., implementation completed and long-term system use). The revealing studies involved an investigation in multiple implementation phases.

Following Berner’s study [7], we classified the examined CDSSs of the included studies according to specific target areas of care. As such, in 93 articles, CDSSs for planning or implementing treatment were studied. Thirty-seven studies examined CDSSs whose goal was prevention or preventive care screening. In 31 studies, the functional focus of the CDSSs was to provide specific suggestions for potential diagnoses that match a patient’s symptoms. Seventeen CDSSs of the included studies focused on follow-up management, 15 studies studied CDSSs for hospital and provider efficiency care plans and 12 focused on cost reduction and improved patient convenience (i.e., through duplicate testing alerts). Most CDSSs supported medication-related decisions and processes, such as prescribing, administration, and monitoring for effectiveness and adverse effects (n = 30). An overview of the characteristics of the included studies can be found in Table S2.

In the 131 included studies, we identified 1219 factors, which we categorized into human, technological, organizational, and professional identity threat and enhancement-related factors to implementation (Table 2). The total amount of factors is reported in Table 2 for each of our framework’s dimension and for each of our inferred factor sub-categories. The following section delves into the elements of our framework (Fig. 1), starting with the most commonly identified factors. Finally, the CDSS implementation outcomes are described.

Table 2 Summary of CDSS implementation factors

Technological factors

At the technological level, perceptions of threat to professional identity were associated with factors related to the nature of the clinical purpose of the CDSS and system quality, such as compatibility of the CDSS with current clinical workflows [68,69,70], customization flexibility, intuitive navigation [71, 72, 126], and scientific evidence and transparency of the decision-outcome [73, 74, 191]. A total of 532 technological factors in 125 included studies were identified. In 21 studies, technological factors were related to study participants’ perceptions of professional identity threat, while in 9 studies these factors were related to perceived professional identity enhancements (Table 3). The exemplary quotes are chosen based on their clarity and representativeness related to the overall themes.

Table 3 Examples of review findings relating to technological factors

The reviewed studies focused primarily on medication-oriented CDSSs. Relevance, accuracy, and transparency of the recommendations’ quality and scientific evidence were found to be crucial for their acceptance and use. “Irrelevant, inaccurate, excessive, and misleading alerts” were associated with alert fatigue and lack of trust [72, 75, 76, 127, 144]. Some senior physicians preferred the provision of evidence-based guidelines that would reinforce their knowledge, while others advised junior physicians to override the CDSS recommendations in favor of their own instructions. However, residents tended to follow CDSS recommendations and used them to enhance their confidence about a clinical decision [69, 77, 128]. Physicians had diverse perceptions of the scientific evidence supporting the CDSS recommendations. Some regarded it as abstract or useless information that was not applicable to clinical decision making in practice. These physicians preferred a more conventional approach to learning from the “eminences” of their discipline while pragmatically engaging in the “art and craft” of medicine. CDSSs were perceived as increasingly undermining clinical work and expertise among health professionals [24]. In some studies examining AI (artificial intelligence)-based CDSS, explainability and transparency of the CDSS recommendations played a major role in maintaining control over the therapeutic process [78, 129].

Many studies indicated that the introduction of a CDSS was perceived as a disruptive change to established clinical workflows and practices [12, 79,80,81, 167]. The fit of CDSS with standardized clinical workflows was seen as critical to the CDSS implementation. Senior clinicians preferred their own workflows and protocols for complex patient cases [82]. Geriatricians, for example, considered CDSS recommendations inappropriate for their clinical workflows because geriatric patients are typically multi-morbid and require individualized care [77]. Intuitiveness and interactivity of the CDSS were found to reduce the perceived threat to professional identity [5], and customization and adjustment of alerts based on specialties’ and individual preferences were perceived to increase competence [10, 127, 130]. Physicians considered that successful implementation of the CDSS depends on the integration of existing clinical processes and routine activities and requires collaboration as well as knowledge sharing among experienced professionals [24].

Organizational factors

A total of 287 organizational factors in 104 included studies were identified. In 17 studies, organizational factors were related to study participants’ perceptions of professional identity threat, while in 7 studies these factors were related to perceived professional identity enhancements (Table 4). In the included studies, organizational factors influencing professionals’ perceived threat to their identity have been studied from multiple perspectives, such as internal collaboration and communication [145, 178], (top) managers’ leadership and support [79, 83], innovation culture and psychological safety [24], organizational silos and hierarchical boundaries [69, 70], and the relevance of social norms and endorsement of professional peers [161].

Table 4 Review findings relating to organizational factors

The empirical studies showed that the innovation culture plays a critical role in driving change in health care organizations. In this regard, resistance to the implementation of CDSSs may be due to a lack of organizational support as well as physicians’ desire to maintain the status quo in health care delivery [24, 70, 75]. Several key factors influenced the implementation in this regard. These included appropriate timing of the implementation project, user involvement, and dissemination of understandable information through appropriate communication channels [70]. Some studies showed that an innovation culture characterized by interdependence and cooperation promotes social interaction (i.e., a psychologically safe environment), which in turn facilitates problem-solving and learning related to CDSS use [193, 194]. For example, nursing practitioners recognized the potential of CDSSs for collaboration in complex cases, which had a positive impact on team and organizational culture development [24].

Supportive leadership (e.g., by department leaders) was found to be critical to successful CDSS implementation. This includes providing the necessary resources, such as time and space for training, technical support, and user involvement in the implementation process, which were negatively associated with perceived loss of control and autonomy [11, 69, 79, 83, 84, 145, 174]. Involving not only senior physicians but also nursing and paramedical leaders increased the legitimacy of CDSSs throughout the professional hierarchy and helped to overcome the negative effect of low status on psychological safety by flattening hierarchical distances [24, 70, 72]. In contrast, imposing a CDSS on users, led to resistance. Some physicians and nurses felt that the use of the CDSS was not under their voluntary control (i.e., “we have no choice”, “it’s not an option to not use it”) because these systems have become “as essential as … carrying a pen and a stethoscope,” with physicians feeling that they now “are reliant on the CDSS” [10]. In other cases, top-down decisions led to the resolution of initial resistance toward the CDSS [167]. Overall, committed leadership that involved users and transcended professional silos and hierarchies was critical to successful CDSS implementation. In this context, an established hierarchy and culture of physician autonomy impeded communication, collaboration, and learning across professional and disciplinary boundaries [54, 195, 196]. A well-designed CDSS minimized professional boundaries by, for example, empowering nurses and paramedics to make independent treatment decisions [8, 180]. CDSSs thus provided structured means for nonmedical professionals to receive support in their clinical decision-making that was otherwise reserved for professionals with higher authority [34]. Since CDSSs allow widespread access to scientific evidence, they often led to nursing practitioners’ control or oversight of medical decisions, putting junior physicians in an inferior position, and thus providing an occasion to renegotiate professional boundaries and to dispute the distribution of power [24, 77].

In addition, the provision of sufficient training and technical support were essential to ensure that physicians and nursing practitioners felt confident in using the CDSS and increased their satisfaction with the system [77, 85]. Embedding new CDSSs into routine practice required communication and collaboration among professionals with clinical expertise and those with IT expertise [86, 145, 178]. Involving physicians and nursing practitioners in decision-making processes increased their willingness to change their long-standing practice patterns and embrace the newly introduced CDSS [5, 10]. Facilitating the CDSS uptake therefore required legitimization of the system’s designers and exploited data sources [24]. Similarly, the success or failure of CDSSs implementation depended on the ability of the new system to align with existing clinical processes and routine activities. Often, successful adoption was at risk when the implementation was too far away from the reality of clinical practice because those responsible for designing the CDSS poorly understood the rationale for designing the system in a particular way [145].

In addition, some studies indicated that resistance was overcome by communicating the benefits of the CDSS through contextual activities and providing opportunities to experience the system firsthand. Sharing positive implementation experiences and fostering discussions among actual and potential users could bridge the gap between perceptions and actual use [145, 146]. In this regard, endorsement fromrespected” and “passionateinternal change promoters, such as expert peers, was seen as key to overcoming user resistance [82]. Confirmation from clinical experts that the new system improves efficiency and quality of care was essential for the general system acceptance [154]. Thus, social influence played an important role, especially in the initial phase of system use, while this influence decreased as users gained experience with the CDSS [182].

Human factors

A total of 197 human factors in 99 included studies were identified. In 17 studies, human factors were related to study participants’ perceptions of professional identity threat, while in 6 studies these factors were related to perceived professional identity enhancements. Table 5 summarizes the key findings from the included articles, which relate to three factors: individual attitudes and emotional responses, experience and familiarization with the CDSS, and trust in the CDSS and its underlying source.

Table 5 Examples of review findings relating to human factors

It is reported in the empirical studies that physicians often failed to fully utilize the features of CDSSs, such as protocols, reminders, and charting templates, because they often lacked experience and familiarization with the CDSS [3, 79, 87, 127]. In addition to insufficient training and time constraints, limited IT skills were reported as the main reasons [83, 87, 147, 185]. As a result, users interacted with the CDSS in unintended ways, leading to data entry errors and potential security concerns [88]. According to Mozaffar et al. [131], this includes physicians’ tendency to enter incorrect data or select the wrong medication due to misleading data presentations in the system. Inadequate IT skills and lack of user training also contributed to limited understanding of the full functionality of CDSSs. As such, physicians interviewed in one study expressed the lack of knowledge about basic features of a CDSS, including alerts, feedback, and customization options, as a major implementation barrier [127]. Some studies reported that the lack of system customization to meet the personal preferences of users and the lack of system training weakened their confidence in the system and compromised their clinical decision-making autonomy [10, 83, 89, 90, 127, 183].

Some studies indicated that there were trust issues among physicians and nursing practitioners regarding the credibility of the decision-making outcome [132, 154], the accuracy of the CDSS recommendations’ algorithm [146], and the timeliness of medical guidelines in the CDSS [127]. Seniors appreciated medication-related alerts but felt that their own decision-making autonomy regarding drug selection and dosing was compromised by the CDSS [74]. However, they tended to use the CDSS as a teaching tool for their junior colleagues, advising them to consult it when in doubt [77, 128]. In some cases, this led to junior physicians accepting CDSS suggestions, such as computer-generated dosages, without independent verification [128, 144, 154].

Several studies indicated that the CDSS introduction elicited different individual attitudes and emotional responses. More tenured health care professionals were “frightened” when confronted with a new CDSS. Others perceived the CDSS as a “necessary evil” or “unwelcome disruption” [81], leading to skepticism, despair, and anxiety [3, 145, 167]. Younger physicians, on the other hand, tended to be “thrilled” and embraced the technology’s benefits [84, 147, 167]. Motivation, enthusiasm, and a “can do” attitude toward learning orientation and skill development positively influenced engagement in CDSS [11, 83, 84, 145, 184].

The role of professional identity threat and enhancement perceptions in CDSS implementation

Overall, we found 90 factors in 65 included studies related to perceptions of professional identity threat among the study participants. Forty-four factors in 34 included studies were associated with perceived professional identity enhancements. We identified three key dimensions of professional identity threat and enhancement perceptions among health care professionals impacting CDSS implementation along different implementation phases [197]. Table 6 contains exemplary quotes illustrating the findings.

Table 6 Examples of review findings relating to professional identity threat and enhancement

A number of physicians perceived CDSSs as an ultimate threat to professional control and autonomy, leading to a potential deterioration of professional clinical judgment [30, 69, 77, 154, 155]. Most nurse practitioners, on the other hand, experienced a shift in decision-making power, providing an occasion to renegotiate professional boundaries in favor of health care professionals with lower levels of expertise [24]. Thus, nurses associated the implementation of a CDSS with enhanced professional control and autonomy in the performance of tasks [34, 155, 169]. Pharmacists often advocated for medication-related CDSSs, which in turn increased physician dependency and resistance to new tasks [12, 84, 178]. The latter was a consequence of physicians’ increasing reliance on pharmacists for complex drug therapies, as physicians had to relinquish some decision-making authority to pharmacists by restructuring of decision-making processes [74].

Senior physicians frequently expressed concerns about overreliance on CDSS and potential erosion of expertise, which they believed led to patient safety risks [10, 24, 75, 89, 155]. They complained that overreliance on CDSS recommendations interfered with their cognition processes. For example, in medication-related CDSSs, clinical data such as treatment duration, units of measure, or usual doses are often based on pharmacy defaults that may not be appropriate for certain patients. According to these physicians, their junior colleagues might not double-check recommended medication doses and treatment activities, leading to increased patient safety risk [131]. In another study, general practitioners expressed concerns about the deskilling of future physicians through CDSSs. Some CDSSs required a high level of clinical expertise, skill, and knowledge regarding the correct entry of clinical information (e.g., symptoms) for proper support in clinical decisions. Many physicians feared that the use of CDSSs would erode this knowledge and thus allow the CDSS recommendations to lead to incorrect decisions [30]. This potential loss of skills and expertise was seen as particularly problematic in situations where decision support for medications and e-prescriptions varied from facility to facility. Physicians working at different institutions who relied on the CDSS for medication treatment support used at one institution reported that they had difficulties making the correct clinical decisions at the other institution [154]. From the reviewed articles, it appeared that senior physicians perceived CDSSs as an intrusion into their professional role and object to their expertise and time being misused for “data entry work” [10]. They enjoyed the freedom to decide what to prescribe, when to prescribe it, and whether or not to receive more information about it [77] and were determined not to “surrender” and “be made to use [the CDSS]” [82].

In line with the increasing dependence of physicians on pharmacists when using CDSS for medication treatment, pharmacists used the CDSS to demonstrate their professional skills and to further develop their professional role [178]. Nurse practitioners were empowered by CDSSs guidance to systematically update medications and measurements during their hectic daily clinic routine [24, 91], to independently manage more complicated scenarios [8], and to facilitate their decision-making [92]. Some physicians stated that CDSS recommendations facilitated their critical thinking to critically reflect on the medication more than usual and facilitated more conscious decisions [133]. Increased professional identity enhancement in terms of skills and expertise were thus often associated with technological factors such as enhanced patient safety, improved efficiency, and quality of care [9].

Furthermore, physicians strongly associated their professional identity with their central role in the quality of patient care based on a high level of empathy and trust between physician and patient [45, 195]. Their perceived threat to professional identity lead to a sense of loss in clinical professionalism and control over patient relationships [162, 170]. CDSS usage was perceived as unprofessional or disrupting to the power dynamic between them and their patients [89, 93, 171]. As a result, they indicated that established personal patient relationships were affected by imposed CDSS use [81]. Other physicians saw CDSSs as having potential to enhance patient relationships providing them with more control over the system and treatment time, facilitating information and knowledge sharing with patients and building trust between patients and physicians [35, 94].

Mapping the perceptions of threat and enhancement of professional identity among physicians and other health care professionals identified in each study to implementation phases allowed for an examination of the evolution of identity perceptions in CDSS implementations. Table 7 assigns the identity perceptions among physicians and other health care professionals to the different implementation phases. The findings illustrate that threat perceptions were predominantly perceived before and at the beginning of implementation. With steady training, use and familiarization with the CDSS, the perceived threat to professional identity slightly decreased in the sustainment phase, compared to the pre-implementation phase, while perceptions of enhancement of professional identity increased. During the exploration phase, physicians in particular perceived the CDSS as undermining their professional identity, and this perception remained relatively constant through the sustainment phase. Other health care professionals, such as nurse practitioners and pharmacists often changed their perspective over the course of the implementation phases and perceived the CDSS as supporting their control, autonomy, and skill enhancement at work.

Table 7 Table illustrating professional identity threats and professional identity enhancements as perceived by health care professionals across implementation phases

CDSS implementation outcomes

In total, we identified 93 benefits related to CDSS implementation in the reviewed studies (Table 2). The most commonly evaluated benefits were improvements in work efficiency and effectiveness through the use of CDSSs, improvements in patient safety, and improvements in the quality of care. Prevention of prescription and treatment errors was also frequently mentioned. The included studies measured CDSS implementation in various ways, which we classified into seven groups (Table 8). Most studies measured or evaluated self-reported interest in using the system or intention, willingness to use, or adoption, followed by self-reported attitude toward CDSSs, and both self-reported and objective measure of implementation success. Objective actual use measurement was evaluated in only 10 studies, while self-reported use was measured in seven studies, and self-reported satisfaction and performance of the system was measured in five studies. Both self-reported and objective measure of usefulness and usability was measured in one study.

Table 8 Approaches used to measure CDSS implementation in the 131 studies

Although we included 40 quantitative studies in our review, only a few of these empirically measured the direct effect of professional identity threat or related organizational consequences on implementation, adoption, or use of CDSSs. Two studies empirically demonstrated a direct significant negative relationship between perceived professional autonomy and intention to CDSS use [5, 48]. Another four studies found empirical evidence of an indirect negative association between threats to professional identity and actual CDSS use. Physicians disagreed with the CDSS recommendation because they perceived insufficient control and autonomy over clinical decision making [79, 88] and lacked confidence in the quality of the CDSS and its scientific evidence [154].

Discussion

Main findings

The purpose of this narrative review was to identify, reinterpret, and interconnect existing empirical evidence to highlight individual, technological, and organizational factors that contribute to professional identity threat and enhancement perceptions among clinicians and its implications for CDSS implementation in health care organizations. Using evidence from 131 reviewed empirical studies, we develop a framework for the engagement of health care professionals by deconstructing the antecedents of professional identity threats and enhancements (Fig. 2). Our proposed framework highlights the role of cognitive perceptions and response mechanisms due to professional identity struggles or reinforcements of different individual health care professionals in the implementation of CDSSs. Our work therefore contributes to the growing literature on perceived identity deteriorations with insights into how knowledge-intensive organizations may cope with these threats [37, 45, 46]. We categorized clinicians’ professional identity perceptions into three dimensions: (1) perceived threat and enhancement of professional control and autonomy, (2) perceived threat and enhancement of professional skills and expertise, and (3) perceived loss and gain of control over patient relationships. These dimensions influenced CDSS implementation depending on the end user’s change of status and expertise over the course of different implementation phases. While senior physicians tended to perceive CDSSs as undermining their professional identity across all implementation stages, nurse practitioners, pharmacists, and junior physicians increasingly perceived CDSS as enhancing their control, autonomy, and clinical expertise. Physicians, on the other hand, were positive about the support provided by the CDSS in terms of better control of the physician–patient relationship. In most studies, professional identity incongruence was associated with technological factors, particularly the lack of adaption of the system to existing clinical workflows and organizational structures (i.e., process routines), and the fact that CDSS functionalities have to meet the needs of users. The lack or presence of system usability and intuitive workflow design were also frequently associated as antecedents of professional identity loss. The other dimensions (i.e., human and organizational factors) were encountered less often in relation to professional identity mechanisms among health care professionals. Only six studies found empirical evidence of an indirect or direct negative relationship between health professionals’ perceived threats to professional identity and outcomes of CDSS implementation, whereas no study explicitly analyzed the relationship between dimensions of professional identity enhancement and outcomes of CDSS adoption and implementation.

Fig. 2
figure 2

A framework for the role of professional identity in CDSS implementation

Interpretations, implications and applicability to implementation strategies

The results indicate that healthcare professionals may perceive CDSSs as valuable tools for their daily clinical decision-making, which can improve their competence, autonomy, and control over the relationship with the patient and their course of treatment. These benefits are realized when the system is optimally integrated into the clinical workflow, meets users’ needs, and delivers high quality results. Involving users in design processes, usability testing, and pre-implementation training and monitoring can increase user confidence and trust in the system early in implementation and lead to greater adoption of the CDSS [146]. To address trust issues in the underlying algorithm of the CDSS, direct and open communication, transparency in decision-making values, and clinical evidence validation of the CDSS are crucial [154]. CDSS reminders and alerts should be designed to be unobtrusive to minimize the perceived loss of autonomy over clinical decisions [77].

Contrary, the implementation of a CDSS often lead to substantial changes of professional identity and thereby often associated with fear and anxiety. A sense of a loss of autonomy and control was linked to lower adoption rates and thus implementation failure. Cognitive styles, which may be expressed in emotional reactions of users toward the CDSS, reinforced reluctance to implement and use the system [145, 167]. This underscores the importance of finding expert peers and professionals who are motivated and positive toward CDSS adoption and use, and who can communicate and promote the professional appropriateness and benefits of the CDSS to their colleagues [82, 83, 184]. This promotes a focus on the improvement and benefits of the CDSS while maintaining the integrity, perceived autonomy, control, and expertise of physicians and nurses.

Accordingly, the included studies show that health professionals respond to the professional identity threat triggered by the CDSS implementation by actively maintaining, claiming, or completely changing their identity [39], which is consistent with previous studies elaborating on the self-verification of professionals [44]. For example, physicians delegated routine tasks to other actors to maintain control over the delivery of services and thereby enhance their professional status [201]. Pharmacists used the introduction of CDSS for drug treatment to demonstrate their skills to physicians and to further develop their professional role [178]. Maintaining authority over the clinical workflow without the need for additional relational work with lower-status professionals was seen as one of the main factors for health care professionals’ CDSS acceptance in our findings [10, 12, 84, 178]. Physicians influence change processes, such as the implementation of CDSS, in a way that preserves the status quo of physicians’ responsibilities and practices. They often stated their objective to avoid increasing dependence on lower-status professionals such as nurses or pharmacists who were gaining control by using the new CDSS. In addition, CDSS users frequently criticized the system’s lack of fit with clinical work processes and that the systems were not able to replace the clinical expertise and knowledge [12, 34, 77, 82]. The loss of control over the patient-physician relationship also represented a key component of identity undermining through the introduction of CDSSs. Many physicians expressed that their trust-building interaction with patients was eroded by the functionalities of the CDSS [81, 170]. The fact that the use of CDSSs saves time in patient therapy and treatment, freeing up time for their patients, was rarely expressed [12, 147]. This underscores the need to cope with the physician’s strong identification with their professional role, their tendency to preserve the status quo, and self-defense against technological change during the implementation of CDSSs.

Furthermore, the reviewed studies emphasized the importance of both inter- and intra-professional involvement, collaboration, and communication in health care organizations, during the CDSS implementation, suggesting that these mechanisms influence the extent and quality of cooperative behavior, psychologically safe environments, and role adaptation of different professional groups [26, 54, 55, 202]. Among the studies we reviewed, managerial support and collaboration influenced coordination during CDSS implementation [82, 83, 174], such as by providing usability testing and time for efforts to change the understanding of why and how health care professionals should modify their routine practices [74, 95].

Overall, the review shows that the consideration of perceived professional identity mechanisms among health care professionals plays an important role when implementing new CDSSs in health care organizations. Additionally, perceived threats and enhancements of professional identity should be considered and regularly assessed in long-term oriented implementation strategies. These strategies often include methods or techniques to improve the adoption, implementation, and sustainability of a clinical program or practices [203] and may span from planning (i.e., conducting a local needs assessment, developing a formal implementation plan) to educating (i.e., conduct educational meetings, distribute educational materials) to restructuring professional roles to managing quality (i.e., provide clinical supervision, audit, and feedback) [204, 205]. To ensure implementation, health care professionals of all hierarchies should be involved in the planning and decision-making processes related to CDSS implementation. Continuous feedback loops between health care professionals, IT staff, and implementation managers can help identify unforeseen threats to professional identity and necessary adjustments to the implementation plan. The review found that perceived identity threats particularly need to be addressed among highly specialized physicians to account for their knowledge-intensive skills, expertise, and clinical workflows [24, 96]. In addition, the purpose of CDSS implementation and information about how it aligns with organizational strategic goals and individual professional development should be clearly and continuously communicated at all stages of implementation.

Our review also confirms that health care professionals’ perceptions of the effectiveness of CDSSs reinforce the impact of organizational readiness for the ongoing and required transformation of healthcare [17]. Comprehensive assessments of the suitability of the system for established or changing clinical workflows and the technical quality of the CDSS should be prioritized at the beginning of the implementation. Training programs should be developed to help professionals adapt to the new medical systems and allay fears of a loss of competence or relevance. To mitigate threats to professional identity in the long term, it is necessary to foster an organizational culture of adaptability, learning, and psychological safety, in which it is acceptable to make mistakes and learn from them. In addition, ongoing leadership support and professional development opportunities are critical to ensure that health care professionals continue to adapt their roles and keep pace with technological developments [79, 84].

Limitations

A literature review of a large sample of empirical studies has many advantages [206]. However, some limitations arise from the study design. First, our included studies were mainly conducted in the USA or UK (see Table S2). The dominance of these two countries may pose a potential bias, as different cultures may have different implications for CDSS implementation and threat perceptions among health care professionals. Therefore, there is a need for caution in generalizing the findings on the impact of human, technological, and organizational factors on professional identity perceptions among professionals across different cultures. More studies are needed to provide a nuanced understanding of professional identity mechanisms among health care professionals across a broader range of cultures and countries.

Second, broad search terms were used to identify a larger number of articles in the literature review and to identify professional identity based on implementation and adoption factors mentioned in the included studies from the perspective of health professionals who were not specifically identified as threats to or enhancements of professional identity. This could also be considered a methodological strength, as this review combines findings from qualitative, quantitative, and mixed methods studies on this construct from a large and diverse field of research on CDSS implementation. However, non-English language articles or articles that did not pass the MMAT assessment may have been overlooked, which would have provided valuable information on further barriers and facilitators (i.e., threats to professional identity in different cultures), affecting the rigor of this study.

Third, most of the studies reviewed captured CDSSs for use in primary care settings. CDSSs in highly specialized specialties or those that frequently treat multi-morbid patients, such as cardiology and geriatrics, require features that allow for detailed workflow customization. In such specialties, even more attention needs to be paid to balancing provider autonomy and workflow standardization [97]. As such, future research should provide the missing evidence in such complex settings.

Fourth, we were only able to identify a limited number of studies that empirically analyzed the causal relationships included in our framework. There is a lack of studies that use longitudinal research designs, quantitative data, or experimental study designs. Therefore, the identified effects of technological, organizational, and human factors on professional identity and consequently on implementation success need to be interpreted with caution. Future research should test whether the determinants and effects of professional identity mechanisms among healthcare professionals can be observed in real-world settings.

Conclusion

Professional identity threat is a key cognitive state that impedes CDSS implementation among various health care professionals and along all implementation phases [31, 45]. Health care managers need to engage in supportive leadership behaviors, communicate the benefits of CDSSs, and leverage supportive organizational practices to mitigate the perception and effect of professional identity threat. An innovation culture needs to support the use of CDSSs and top management commitment should reduce uncertainty about why a new CDSS is needed [24]. Therefore, leaders should raise awareness of the relevant CDSS functionalities and communicate the terms and conditions of use. It is crucial to involve clinicians in updating CDSS features and developing new ones to ensure that CDSSs can be quickly updated to reflect rapid developments in guideline development [195]. One way to achieve this is to engage proactive, respected, and passionate individuals who can train colleagues to use the CDSS and promote the potential benefits of the system [70, 82].

Our framework presented in this study provides a relevant foundation for further research on the complex relationship between human, technological, and organizational implementation factors and professional identity among different health care professionals. The findings also guide health care management experts and IT system developers in designing new CDSSs and implementation strategies by considering the ingrained norms and cognitions of health care professionals. As suggested above, more research is needed to determine whether some barriers or facilitators are universal across all types of CDSSs or whether there are domain-dependent patterns. In this context, research that explicitly focuses on AI-based CDSSs becomes increasingly important as they become more relevant in medical practice. In fact, five of the studies included in our research, conducted over the last 3 years, examined factors related to the adoption and implementation of AI-based CDSS [73, 74, 96, 205, 206]. AI-based CDSSs extend to full automation and can discover new relationships and make predictions based on learned patterns [97]. However, with their opaque and automated decision-making processes, AI-based systems may increasingly challenge professional identity as they increasingly disrupt traditional practices and hierarchies within healthcare organizations, posing a threat to professional expertise and autonomy [156]. This may further hinder the implementation and sustainable use of these systems compared to non-AI-based systems. Future research could examine overlaps in barriers and facilitators between CDSSs and AI-based systems, which are of relevance for professional identity threat perceptions among health care professionals, and assess the reasons behind these differences. In addition, translating the findings for different medical contexts may provide valuable insights. This can eventually lead to guidelines for the development of CDSS for different specialties.

Some factors were found less frequently during our analysis; in particular, communication of the benefits of a CDSS to users, the importance of trust across different hierarchies and among staff involved in implementation, and government-level factors related to the environment. While the former factors represent important psychological safety and acceptance of the CDSS, the level of the environment represents a minor role in the perception of professional identity. Future research is needed, however, to determine whether all of these factors play an important role in CDSS implementation. Furthermore, future research could explore the role of middle managers and team managers in health care organizations rather than the role of senior management in managing professional identity threats when leading change. Our narrative review found that clinical middle managers may have a special role in legitimizing CDSSs [156]. In addition, a future research opportunity arises from the perceived role and identity enhancement through new technologies and their consequences for social evaluation in hierarchical healthcare organizations [35, 132, 155].

Overall, the findings of this review are particularly relevant for managers of CDSS implementation projects. Thoughtful management of professional identity threat factors identified in this review can help overcome barriers and facilitate the implementation of CDSSs. By addressing practical implications and research gaps, future studies can contribute to a deeper understanding of the threat to professional identity and provide evidence for effective implementation strategies of CDSSs and thus for a higher quality and efficiency in the increasingly overburdened health care system.