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Teamwork and team training in the ICU: Where do the similarities with aviation end?

Abstract

The aviation industry has made significant progress in identifying the skills and behaviors that result in effective teamwork. Its conceptualization of teamwork, development of training programs, and design of assessment tools are highly relevant to the intensive care unit (ICU). Team skills are important for maintaining safety in both domains, as multidisciplinary teams must work effectively under highly complex, stressful, and uncertain conditions. However, there are substantial differences in the nature of work and structure of teams in the ICU in comparison with those in aviation. While intensive care medicine may wish to use the advances made by the aviation industry for conceptualizing team skills and implementing team training programs, interventions must be tailored to the highly specific demands of the ICU.

Introduction

Teamwork in the intensive care unit (ICU) refers to the leadership, decision-making, communication, and coordination behaviors used by multidisciplinary team members to provide patient care [1]. Patient safety research has demonstrated the importance of effective teamwork for ensuring positive patient outcomes in the ICU. Poor communication during rounds and handovers (or handoffs) is frequently cited as a cause of medical error [24], and units with high levels of nurse-doctor collaboration have improved patient mortality rates and reduced average patient length of stay [5]. In attempting to understand and improve teamwork in the ICU, researchers cite teamwork models and training techniques used to manage and improve teamwork skills in aviation [1, 6]. Like work environments in aviation, the ICU is a complex, high-risk, and stressful setting, and it can potentially gain from adopting and integrating the principles and techniques used to train team skills in aviation [4]. We consider the case for this and reflect upon the similarities and differences that exist between aviation and intensive care.

The aviation teamwork model

The aviation model of teamwork draws heavily from social and cognitive psychology and is based on an understanding that team behavior can both cause and protect against error. It considers the team-related 'active failures' (for example, failures to communicate the proximity of nearby aircraft) and 'latent failures' (for example, lack of team training, poor ergonomic design, and organizational culture) that influence behavior and error in the cockpit [7]. Psychology concepts relating to communication, shared decision-making, leadership, team cohesion, team mental models (shared knowledge structures for teamwork and taskwork), and team climate are applied to understand performance and error. Through the use of systemized models, these various concepts are bound together to explain how 'team processes' (for example, leadership and communication) predict 'team outputs' (for example, error and team effectiveness). Furthermore, shared knowledge structures and 'team inputs' (for example, group hierarchies and culture) are shown to influence teamwork behaviors, and safety culture is particularly significant [8].

To understand the specific team behaviors important for safety in aviation, human factor specialists have performed cognitive task analyses, error analyses, attitudinal surveys, observational studies, and ergonomic assessments. These data have structured the content of team training packages [9] and have contributed to the identification of teamwork knowledge, skills, and attitudes that underpin effective team performance (Table 1). Training and assessment in aviation focus on improving communication skills, briefing behaviors, self-critique, leadership skills, workload management, vigilance and stress management, knowledge of team member skills/roles, and attitudes toward teamwork. Teamwork research in the ICU has shown that the systems and concepts used to understand team performance in aviation are also relevant for patient safety in intensive care medicine [1, 10]. However, although team training has become increasingly common within the ICU [11], much can be learned from the aviation industry's advances in developing and integrating into practice the systems for measuring team behavior, providing feed-back, and developing teamwork skills.

Table 1 Team knowledge, skills, and attitude competencies

In aviation, team training is mandatory for commercial pilots in Europe and the US. Virtually all large airlines use team training packages. These use a combination of simulation and class-based training to help aircrews (a) prevent errors from occurring, (b) identify and trap errors, and (c) mitigate the consequences of error [12]. The aviation model provides aircrews with ongoing team training (for example, annually) and uses established pedagogic models to evaluate effectiveness. Such programs have a demonstrable impact on the attitudes of participants toward teamwork, teamwork behaviors, and knowledge of human factors [13]. Validation of crew resource management skills is a training requirement throughout the aviation industry, and best practice is determined by regulators [14]. Despite evidence that the importance of team training is widely accepted in health care, it has not been adopted uniformly and the number of teams that regularly participate in training is still small [15].

Key to the success of team training tools in health care is the identification of the domain-specific team skills required for effectively managing routine and emergency scenarios. In aviation, training strategies have focused on improving the skills required by aircrews to maintain effective decision-making under high levels of stress [9]. Techniques include exposing teams to high-stress situations, training pilots to facilitate team discussions before and after stressful team activities, and cross-training aircrew team members to understand the demands and needs of one another's role. Teams are trained in a multidisciplinary environment (for example, pilots and cabin crew) to facilitate an understanding of the challenges associated with different professional roles, to consider how group hierarchies influence behavior, and to develop expectations for behavior during different scenarios [16]. This training helps aviation teams to form shared and positive perceptions on teamwork and stress management. To assess performance, observational systems for rating teamwork behaviors in the cockpit have been developed. These tools assess teamwork through observable behavioral indicators that indicate good or poor aircrew team skills. Assessment and training can occur at either the individual or group level, and structured qualitative feedback is provided to participants.

It is clear that the team training and assessment techniques used in aviation are relevant to the ICU. For example, in the ICU, as in aviation, hierarchical team structures have a negative impact on the attitudes and behaviors of doctors and nurses and, in turn, on patient safety [4, 17]. Furthermore, a range of teamwork and leadership behaviors important for team performance and patient safety have been identified [1, 11, 18, 19]. In terms of applying this knowledge to formal team training programs, courses such as Advanced Trauma Life Support teach team skills and may provide a model for introducing team training into the teaching curriculum [20]. Training would consist of general principles underlying optimal team performance in the ICU (for example, communication openness) and also the behavioral strategies associated with specific practices (for example, resuscitations). Table 2 notes the key stages associated with implementing an organization-wide team training program [14, 21].

Table 2 Key stages in the design and implementation of a team training program [14, 21]

Key difficulties in developing such a program would likely be related to the resources involved in managing a comprehensive team training program (for example, trainers, simulators, and clinician time to participate), ensuring that programs are consistent across intensive care medicine, avoiding duplication with other team training programs (for example, anesthesia), generating intuitional support for team training, and identifying the key team training requirements for multidisciplinary ICU teams. To develop team training programs for the ICU, it is necessary to consider the extent to which the models used to conceptualize team performance in aviation can be applied in intensive care medicine.

Comparisons between aviation and the intensive care unit

As discussed above, parallels have been made between teamwork in aviation and intensive care. ICU teams are also reliant upon teams that manage risk, complex technologies, changeable workloads, and uncertainty [22]. Fatigue and stress are known to negatively influence performance in the ICU [23], and non-technical factors such as team communication, situation awareness, and decision making frequently underlie error [4]. However, there are also a number of general critiques that can be made in the comparisons drawn between aviation and health care [2426]. For example, owing to the catastrophic consequences associated with in-flight safety failures, there are positive perceptions (and a general awareness) of safety culture throughout aviation. This is not necessarily the case in health care [26]. In addition, medical errors often influence only a single patient (and their family) and, except in cases of negligence, the outcomes rarely impact other patients or health-care providers. In aviation, passengers and aircrews share the consequences of risk. Furthermore, aircrews typically manage stable interlinked systems that operate within expected parameters, and emergency events occur when the functioning of these systems is threatened. Conversely, teams in acute medicine frequently encounter emergency situations. They must tolerate high levels of risk and develop an ongoing understanding of the complex interactions between medical treatments and patient physiology.

In regard to differences between aviation and the ICU, a number of further distinctions can be drawn (Table 3). It is notable that comparisons between aviation and acute medicine often focus on the domains of anesthesia and surgery. This reflects similarities in procedures with aviation (for example, pre-operative checks, induction, extubation, post-operative checks, and awakening). However, the organization of work in intensive care medicine limits the extent to which these parallels can made. For example, unlike aviation work environments, ICUs consist of large medical and nursing teams that care for numerous patients simultaneously. Patients usually enter the ICU in an already critical state. Problem solving is key, and teams must diagnose poorly understood patient illnesses, stabilize the condition of patients, and stimulate recovery. Team members have minimal prior knowledge of patient histories, and patient populations are diverse in terms of demographic background, risk factors, and underlying pathology.

Table 3 Key similarities and differences in the challenges faced by intensive care unit and aviation teams

In addition, the flow of work in the ICU differs considerably from that in aviation. For example, within a single ICU, teams will perform a diverse range of hands-on, problem-solving, and monitoring tasks [27]. In comparison, aircrews typically monitor and adjust a stable system in which outcomes are usually clear (and positive), and team and task skills are essential for avoiding or managing emergency situations. Problems in aircraft technical performance are often raised through automatic warning systems, and periods of activity tend to be discrete (for example, a 12-hour flight). In the ICU, length of patient care is frequently undeterminable, and the duration of stay depends on the likelihood that patients will experience a sudden deterioration, the stage of treatment, and system factors within a hospital (for example, available bed spaces). Patient outcomes are often unclear, and approximately 20% of UK patients do not survive intensive care. Furthermore, patient care within the hospital system does not cease when a patient is discharged from the ICU, and patients may return. Numerous clinical and nursing staff may provide patient care, and continuity of care is maintained through regular handovers. While these are key to maintaining the quality and safety of care, they can be un-standardized and subject to error [28]. Furthermore, an ICU will typically have several specialists leading the unit, and compared with their counterparts in aviation, each has substantial autonomy in terms of leadership style and preferred operating procedures. This can result in inconsistencies (between specialists) in their expectations for the standards and procedures used to manage patient care and in their expectations for teamwork behaviors and attitudes [19].

Despite these differences, intensive care and aviation teams do share similarities. Both settings involve team-centric, risky, time-pressured work. They are multidisciplinary in nature and exhibit clear differences in the expertise and authority of team members. Furthermore, team performance is influenced by factors such as team leadership and shared cognition [19, 29, 30], and lessons can be drawn from the psychology literature on error avoidance and performance-enhancing strategies [8]. It is notable that both ICU specialists and pilots believe in the importance of teamwork for safety and reject steep team hierarchies [31]. However, in comparison with pilots, ICU specialists are less likely to report making errors (or to feel comfortable discussing error), and they tend to have overly positive perceptions (compared with junior team members) toward team communication [17, 32]. Furthermore, although both aviation work environments and the ICU are highly stressful, intensive care specialists are less likely (than pilots) to acknowledge the detrimental impact of factors such as stress and fatigue upon safety and performance [31].

Team structures in the ICU also differ somewhat from those in aviation. Senior intensivists are generally considered 'expert' in the ICU, and the majority of medical staff are in a training role. Trainees perform much of the hands-on clinical work and must learn to coordinate with nursing teams that have their own team structures, hierarchies, and levels of expertise. At an advanced level, trainees must learn to manage the ICU on their own (for example, at night). Although senior intensivists are available to provide support, the thresholds for requesting help can depend on the trainee's disposition to solicit help and on perceptions of the senior intensivists' attitude toward false alarms. A further difference with aviation is the participation of other actors in 'operational' decision-making. For example, patient decision-making in the ICU can be influenced by non-clinical staff (for example, patients and families) and colleagues from other departments (for example, surgery). However, like aviation teams, ICU teams regularly work with colleagues in other departments (for example, surgery, microbiology, and radiology). Cockpit crews must also coordinate with teams in disparate locations (for example, air traffic control towers). Yet in the ICU (and in healthcare in general), the lines and protocols of communication between hospital units are often informal, un-centralized, and fragmented [26].

An additional parallel between the ICU and aviation is the reliance on protocols to ensure safety and quality. In the ICU, a range of technical protocols are used to structure patient care and ensure safety. Aviation teams also use numerous protocols (for example, pre-flight checks), and within the ICU the emulation of aviation-style protocols to improve patient handovers has been shown to have positive outcomes [33]. However, owing to high levels of uncertainty associated with ICU patients, clinical judgment remains key for determining patient treatments and outcomes, and the extent to which it is desirable to extend protocols to aspects of teamwork and decision making is unclear [15]. Finally, the use of simulation in ICU training is increasing, and this will help to facilitate the adoption of the multidisciplinary team training methods used in aviation.

Conclusions

On the surface, the aviation model does provide a strong initial platform against which to design and implement team training programs for the ICU. The generic teamwork skills that underpin effective performance are similar, and the process of team training should draw on similar methods and techniques. However, it can be seen that there are many differences between aviation and the ICU in the nature of work and team performance (Table 3). It is not sufficient or desirable to simply transfer to the ICU the programs developed for aviation or the operating theatre (where, it can be argued, the cognitive structure of work is quite similar to that of aviation). Rather, team training in the ICU must consider the ebb and flow of work in critical care, and programs must focus on routine and non-routine events, and be reflective of cognitive tasks, team structures, and group norms. The specific team skills and behaviors that underpin team performance must be captured and explicitly stated if we are to develop a relevant and sustainable model of team training and assessment for the ICU.

Note

This article is part of a series on Healthcare Delivery, edited by Dr Andre Amaral and Dr Gordon Rubenfeld.

Abbreviations

ICU:

intensive care unit.

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Correspondence to Tom W Reader.

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The authors declare that they have no competing interests.

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Keywords

  • Intensive Care Unit
  • Team Performance
  • Intensive Care Medicine
  • Team Training
  • Aviation Industry