Simulation in Healthcare-Journal of the Society for Simulation in Healthcare最新文献

Introduction: This technical report describes the development of a high-fidelity, open-source ultrasound trainer and showcases its abilities through a proof-of-concept, pilot randomized control trial. The open-source ultrasound trainer (OSUT) aims to enhance anatomical visualization during ultrasound education. The OSUT can attach to any ultrasound transducer, uses minimal hardware, and is able to be used during live patient ultrasound examinations.

Methods: After viewing a standardized training video lecture, 24 incoming first-year medical students with no prior ultrasound experience were randomized into a control group given an ultrasound system or an intervention group given the OSUT in addition to an ultrasound system. Both groups were tasked with localizing the thyroid, abdominal aorta, and right kidney on a patient. Performance outcomes were structure localization time, ultrasound image accuracy, and preactivity and postactivity participant confidence.

Results: The OSUT decreased right kidney localization time (Kruskal-Wallis, P < 0.001), increased sonographer right kidney accuracy ratings (Mann-Whitney U , U = 10.5, P < 0.05), and increased confidence in structure identification (Mann-Whitney U , U = 37, P = 0.045) and overall ultrasound ability (Wilcoxon signed-rank test, P = 0.007). There was no significant change in localization time, accuracy ratings, or participant confidence for locating the thyroid and abdominal aorta.

Conclusions: A high-fidelity, open-source ultrasound trainer was developed to aid healthcare professionals in learning diagnostic ultrasound. The study demonstrated the potential beneficial effects of the OSUT in localizing the right kidney, showcasing its adaptability and accessibility for ultrasound education for certain anatomical structures.

Introduction: The reflective pause, taking a pause during performance to reflect, is an important practice in simulation-based learning. However, for novice learners, it is a highly complex self-regulatory skill that cannot stand alone without guidance. Using educational theories, we propose how to design cognitive and metacognitive aids to guide learners with the reflective pause and investigate its effects on performance in a simulation training environment.

Methods: These effects are examined in four aspects of performance: cognitive load, primary performance, secondary performance, and encapsulation. Medical students ( N = 72) performed tasks in simulation training for emergency medicine, under 2 conditions: reflection condition ( n = 36) where reflection was prompted and guided, and control condition ( n = 36) without such reflection.

Results: The effects of reflective pauses emerged for 2 aspects of performance: cognitive load decreased and secondary performance improved. However, primary performance and encapsulation did not show significant difference.

Conclusions: The results demonstrate that reflective pauses with cognitive and metacognitive aids implemented can enhance some aspects of performance. We suggest that to secure these effects, feedback during reflection and an adaptation period should be provided.

Introduction: Endotracheal intubation (ETI) is a procedure that varies in difficulty because of patient characteristics and clinical conditions. Existing physical simulators do not encompass these variations. The Virtual Airway Skills Trainer for Endotracheal Intubation (VAST-ETI) was developed to provide different patient characteristics and high-fidelity haptic feedback to improve training.

Methods: We demonstrate the effectiveness of VAST-ETI as a training and evaluation tool for ETI. Construct validation was evaluated by scoring the performance of experts ( N = 15) and novices ( N = 15) on the simulator to ensure its ability to distinguish technical proficiency. Convergent and predictive validity were evaluated by performing a learning curve study, in which a group of novices ( N = 7) were trained for 2 weeks using VAST-ETI and then compared with a control group ( N = 9).

Results: The VAST-ETI was able to distinguish between expert and novice based on mean simulator scores ( t [88] = -6.61, P < 0.0005). When used during repeated practice, individuals demonstrated a significant increase in their score on VAST-ETI over the learning period ( F [11,220] = 7206, P < 0.001); however when compared with a control group, there was not a significant interaction effect on the simulator score. There was a significant difference between the simulator-trained and control groups ( t [12.85] = -2.258, P = 0.042) when tested in the operating room.

Conclusions: Our results demonstrate the effectiveness of virtual simulation with haptic feedback for assessing performance and training of ETI. The simulator was not able to differentiate performance between more experienced trainees and experts because of limits in simulator difficulty.

Summary statement: Interprofessional simulation-based team training (ISBTT) is promoted as a strategy to improve collaboration in healthcare, and the literature documents benefits on teamwork and patient safety. Teamwork training in healthcare is traditionally grounded in crisis resource management (CRM), but it is less clear whether ISBTT programs explicitly take the interprofessional context into account, with complex team dynamics related to hierarchy and power. This scoping review examined key aspects of published ISBTT programs including (1) underlying theoretical frameworks, (2) design features that support interprofessional learning, and (3) reported behavioral outcomes. Of 4854 titles identified, 58 articles met inclusion criteria. Most programs were based on CRM and related frameworks and measured CRM outcomes. Only 12 articles framed ISBTT as interprofessional education and none measured all interprofessional competencies. The ISBTT programs may be augmented by integrating theoretical concepts related to power and intergroup relations in their design to empower participants to navigate complex interprofessional dynamics.

Summary statement: Mobile and remote simulation can be used as a research methodology to collect data in simulated environments to answer research questions pertaining to health care delivery. This research methodology can exponentially increase the reachable target study participants and provide generalizable conclusions. Using a large-scale national study in the United States as an exemplar, this article outlines the technology and equipment required to conduct mobile and remote simulations for research purposes. The cost associated with using mobile and remote simulations as well as the advantages and challenges of using this research methodology are also discussed.

Summary statement: Behavioral skills, sometimes referred to as nontechnical skills or team-based skills, are fundamental to simulation-based team training. These skills should be afforded the same deliberate practice and development as clinical knowledge and procedural skills in health care education. Applied improvisation, the use of theater games designed to improve individual and team performance, is gaining traction in health care education to train behavioral skills. Simulation educators are experts in experiential learning with debriefing and therefore well poised to incorporate applied improvisational exercises into team training activities.

Introduction: Postpartum hemorrhage (PPH) remains a major cause of preventable maternal morbidity in the United States. Postpartum hemorrhage simulations were developed to improve provider recognition and treatment; however, there exist few studies that investigate their effects on individual outcomes. Our objective is to estimate the effect of a simulation-based educational intervention on PPH-related maternal morbidity outcomes.

Methods: We conducted a retrospective cohort analysis of hemorrhage outcomes at a single institution between March 2012 and January 2016 during the implementation of a high-fidelity PPH simulation. Women with PPH defined as an estimated blood loss greater than 500 mL for vaginal delivery and 1000 mL for cesarean delivery were included. The primary outcome was a composite of hemorrhage-related maternal morbidity (maternal death, hysterectomy, intensive care unit admission, blood transfusion, or unanticipated procedures to treat postpartum bleeding). Multivariable logistic regression adjusted for confounding variables between presimulation and postsimulation outcomes.

Results: During the study period, 19,927 deliveries occurred with 4.5% of patients (888) experiencing hemorrhage. Women in the presimulation (n = 278) versus postsimulation groups (n = 610) had similar demographics. Although the PPH rate increased after simulation [2.8% pre vs. 6.1% post, odds ratio (OR), 2.25; 95% confidence interval (CI), 1.95-2.60], composite hemorrhage-related morbidity was lower after simulation training (44% pre vs. 35% post; OR, 0.70; 95% CI, 0.52-0.93). This reduction persisted after adjusting for confounding variables of mode of delivery and time from delivery to first uterotonic use (adjusted OR, 0.66; 95%, CI 0.49-0.89).

Conclusions: Despite an increased PPH rate, simulation education was associated with a reduction in a hemorrhage-related maternal composite morbidity.

Introduction: Performance assessment and feedback are critical factors in successful medical simulation-based training. The Dynamic Haptic Robotic Trainer (DHRT) allows residents to practice ultrasound-guided needle insertions during simulated central venous catheterization (CVC) procedures while providing detailed feedback and assessment. A study was performed to examine the effectiveness of the DHRT in training the important skills of needle tip tracking and aspiration and how these skills impact procedural complications in simulated CVC.

Methods: The DHRT data were collected for 163 residents at 2 hospitals for 6 simulated needle insertions. Users were given automated feedback on 5 performance metrics, which measure aspiration rate, arterial punctures, punctures through and through the vein, loss of access to the vein, and successful access to the vein. Aspiration rates and tip tracking rates were analyzed to determine their significance in preventing CVC complications and improving performance.

Results: Tip tracking rates higher than 40% were 2.3 times more likely to result in successful venous access than rates less than 10%. Similarly, aspiration rates higher than 80% were 2.6 times more likely to result in successful venous access than rates less than 10%. Proper tip tracking and aspiration both reduced mechanical complications. Resident performance improved for all metrics except tip tracking.

Conclusions: Proper tip tracking and aspiration both reduced complications and increased the likelihood of success. However, the skill of tip tracking was not effectively learned through practice without feedback. Therefore, ultrasound-guided needle-based procedures, including CVC, can be improved by providing specific feedback to users on their ultrasound usage to track needle insertions.