Towards a safer culture: implementing multidisciplinary simulation-based team training in New Zealand operating theatres - a framework analysis.

AIM: NetworkZ is a simulation-based multidisciplinary team-training programme designed to enhance patient safety by improving communication and teamwork in operating theatres (OTs). In partnership with the Accident Compensation Corporation, its implementation across New Zealand (NZ) began in 2017. Our aim was to explore the experiences of staff - including the challenges they faced - in implementing NetworkZ in NZ hospitals, so that we could improve the processes necessary for subsequent implementation. METHOD: We interviewed staff from five hospitals involved in the initial implementation of NetworkZ, using the Organising for Quality model as the framework for analysis. This model describes embedding successful quality improvement as a process of overcoming six universal challenges: structure, infrastructure, politics, culture, motivation and learning. RESULTS: Thirty-one people participated. Structural support within the hospital was considered essential to maintain staff enthusiasm, momentum and to embed the programme. The multidisciplinary, simulation-based approach to team training was deemed a fundamental infrastructure for learning, with participants especially valuing the realistic in situ simulations and educational support. Participants reported positive changes to the OT culture as a result of NetworkZ and this realisation motivated its implementation. In sites with good structural support, NetworkZ implementation proceeded quickly and participants reported rapid cultural change towards improved teamwork and communication in their OTs. CONCLUSION: Implementation challenges exist and strategies to overcome these are informing future implementation of NetworkZ. Embedding the programme as business as usual across a nation requires significant and sustained support at all levels. However, the potential gains in patient safety and workplace culture from widespread multidisciplinary team training are substantial. Trial registration number ACTRN12617000017325.

Debriefing after simulation-based non-technical skill training in healthcare: a systematic review of effective practice.

Non-technical skills training in healthcare frequently uses high-fidelity simulation followed by a facilitated discussion known as debriefing. This type of training is mandatory for anaesthesia training in Australia and New Zealand. Debriefing by a skilled facilitator is thought to be essential for new learning through feedback and reflective processes. Key elements of effective debriefing need to be clearly identified to ensure that the training is evidence-based. We undertook a systematic review of empirical studies where elements of debriefing have been systematically manipulated during non-technical skills training. Eight publications met the inclusion criteria, but seven of these were of limited generalisability. The only study that was generalisable found that debriefing by novice instructors using a script improved team leader performance in paediatric resuscitation. The remaining seven publications were limited by the small number of debriefers included in each study and these reports were thus analogous to case reports. Generally, performance improved after debriefing by a skilled facilitator. However, the debriefer provided no specific advantage over other post-experience educational interventions. Acknowledging their limitations, these studies found that performance improved after self-led debrief, no debrief (with experienced practitioners), standardised multimedia debrief or after reviewing a DVD of the participants' own eye-tracking. There was no added performance improvement when review of a video recording was added to facilitator-led debriefing. One study reported no performance improvement after debriefing. Without empirical evidence that is specific to the healthcare domain, theories of learning from education and psychology should continue to inform practices and teaching for effective debriefing.

Influence of multi-lumen extensions on fluid flow through intravenous cannulae.

Multi-lumen extensions used to infuse multiple fluids via a single intravenous cannula might increase resistance and so limit the flow that can be achieved. We constructed low-pressure and high-pressure models and compared the effect of two different multi-lumen extensions on flow rate. Both multi-lumen extensions reduced flows by up to 76% (p < 0.001). The effect was greatest with large cannulae and in the high-pressure model, with the longer and narrower extension most impeding flow. Multi-lumen extensions can therefore significantly impede fluid flow, and should be avoided or removed when rapid infusion is required. These effects are less important in paediatric anaesthesia where smaller cannulae are used. Manufacturers should include internal diameter or flow effects on the packaging of these extensions to assist clinicians in making such decisions.

Fifteen-hour day shifts have little effect on the performance of taskwork by anaesthesia trainees during uncomplicated clinical simulation.

Shiftwork and work-hour limits for junior doctors are now well established in hospital work patterns. In order to ensure that trainees have adequate exposure to daytime elective surgical procedures, there is a tendency to have long shifts that include an after-hours component. However, long shifts can cause performance decrement due to time-on-task fatigue. In addition, shifts that encroach upon sleep time result in sleep loss. Using a high-fidelity patient simulation environment, we undertook a randomised, controlled trial to examine fatigue effects. A within-subjects comparison was used to evaluate the effect of 15-hour day shifts on the performance of 12 anaesthesia registrars. Preoperative assessment, machine check and taskwork using 42 task categories were evaluated. In both conditions, there was failure to meet current guidelines for preoperative evaluation or machine check, and when fatigued there was a 'trend' (P=0.06) to a reduction in the number of items in the machine check. With increase in time awake, there was an increase in time taken for explanation to the patient, an increase in mean duration of explanation to the patient, more time looking at the intravenous line or fluids when multi-tasking but less time adjusting the intravenous fluid. These effects are minor during routine uncomplicated induction of anaesthesia, but further investigation is needed to examine fatigue effects during non-routine circumstances.

Test-retest reliability of the oxygen uptake efficiency slope in surgical patients.

The oxygen uptake efficiency slope is a measure of cardiopulmonary fitness, that can be obtained from a sub-maximal cardiopulmonary exercise test. It has been evaluated in medical patients but its reliability in surgical populations remains uncertain. We conducted a test-retest study with the aim of establishing the reliability of the oxygen uptake efficiency slope in relation to that of the anaerobic threshold and peak oxygen uptake, in general surgical patients. Twenty-six patients over 60 years old completed two symptom-limited, incremental cycle ergometry tests within 7 days. The mean (SD) anaerobic threshold was 13.0 (3.0) mlO(2) .kg(-1) .min(-1) . There were no significant differences between mean test and retest values of anaerobic threshold (p = 0.50), peak oxygen uptake (p = 0.76) or oxygen uptake efficiency slope (p = 0.42). Reliability coefficients (95% CI) for the anaerobic threshold, oxygen uptake efficiency slope and peak oxygen uptake were 66.7% (45.3-87.9%), 89.0% (81.0-96.9%) and 91.7% (85.7-97.8%), respectively. The oxygen uptake efficiency slope was determined easily in all patients and found to have excellent reliability. Its clinical utility in determining pre-operative fitness warrants further evaluation.

In situ simulation training for paediatric cardiorespiratory arrest: initial observations and identification of latent errors.

In response to a successful, although difficult resuscitation in one of our paediatric wards, we developed and implemented an educational program to improve the resuscitation skills, teamwork and safety climate in our multidisciplinary acute-care paediatric service. The program is ongoing and consists of didactic presentations, high-fidelity in situ simulation and facilitated debriefing to encourage reflective learning. The underlying goal, to provide this training to all staff over a two-year period, should be achieved by late 2011. In this preliminary report we describe teamwork difficulties that are commonly found during such training. These included inconsistent leadership behaviours, inadequate delegation of areas of responsibility, failure to communicate problems during the execution of technical tasks (such as difficulty opening the resuscitation trolley) and failure to challenge inadequate or inappropriate therapy (such as poor chest expansion during bag-mask ventilation). In addition, we unexpectedly discovered seven latent errors in our clinical environment during the first nine months of course delivery. The most disturbing of these was that participants repeatedly struggled to identify and overcome the locking-mechanism and tamper-proof device on a newly introduced resuscitation trolley.

Myogenic and scalp signals evoked by midinspiratory airway occlusion.

A somatosensory potential that is evoked by transient added inspiratory load has previously been described (Davenport PW, Friedman WA, Thompson FJ, and Franzen O. J Appl Physiol 60: 1843-1848, 1986). This evoked potential is novel because it arises in response to a stimulus that also evokes a muscle response, and so this potential could contain myogenic components. The present study was undertaken to define the relationship between the scalp response and other physiological responses that are evoked by airway occlusion. Evoked signals were recorded from the scalp, scalenus anterior, masseter, and electrooculogram. Responses to a 200-ms midinspiratory occlusion were recorded in 12 healthy volunteers. Evoked responses were reliably recorded at C(3)-C(Z) and C(4)-C(Z) and from the skin overlying the scalenus anterior in 11 of these subjects. The onset latencies were 15.7 +/- 3.1 at C(3)-C(Z), 15.9 +/- 2.1 at C(4)-C(Z), and 17.6 +/- 5.5 ms at scalenus anterior. In nine subjects, the masseter response appeared to coincide with the mouth pressure trace, and this was interpreted as movement artifact. No consistent electrooculogram or frontal electroencephalogram response was recorded. Because of the similarity in onset latency at C(3)-C(Z), C(4)-C(Z), and scalenus anterior, it was concluded that the myogenic signal may contribute to the scalp response and should be viewed as a potential source of artifact in experiments of this nature.

Anaesthesia information--what patients want to know.

We developed and introduced into clinical practice a leaflet to improve the delivery of information to patients before obtaining their consent to anaesthesia. The amount of information needs to be what a "reasonable" patient thinks appropriate; therefore we tested patients' responses to three levels of information: "full" disclosure, "standard" disclosure (as contained in our leaflet) and "minimal" disclosure. Forty-five patients scheduled to undergo cardiac surgery were enrolled in the study. None of the information sheets caused a significant change in state anxiety score and only the "full" disclosure significantly increased knowledge about anaesthesia (P = 0.016). All leaflets were easy to understand. When only one leaflet was provided 64-73% of patients thought the content was "just right", whereas when all three leaflets were viewed together, 63% of patients thought the "minimal" leaflet withheld too much information.

A child with valproic acid-associated carnitine deficiency and carnitine-responsive cardiac dysfunction.

Valproic acid enhances renal losses of carnitine esters and leads to decreased plasma free carnitine concentrations in many patients receiving valproic acid therapy. However, decreased serum carnitine levels are of unclear pathologic significance, and most children manifest no symptoms of carnitine deficiency. We report a child with valproic acid-associated carnitine deficiency who had severe cardiac dysfunction develop that resolved with carnitine replacement therapy.