Publications by authors named "Leif Hedman"

Background: Operating rooms have become more technically complex due to new advanced procedures, which has increased demands on teamwork in the operating room. In response, team training has been proposed to improve team performance, workplace culture, and patient safety. We developed and delivered a simulation-based team training course for entire professional surgical teams.

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Objectives: To compare medical students' and residents' knowledge retention of assessment, diagnosis and treatment procedures, as well as a learning experience, of patients with spinal trauma after training with either a Virtual Patient case or a video-recorded traditional lecture.

Methods: A total of 170 volunteers (85 medical students and 85 residents in orthopedic surgery) were randomly allocated (stratified for student/resident and gender) to either a video-recorded standard lecture or a Virtual Patient-based training session where they interactively assessed a clinical case portraying a motorcycle accident. The knowledge retention was assessed by a test immediately following the educational intervention and repeated after a minimum of 2 months.

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Background: Patient safety education, as well as the safety climate at clinical rotations, has an impact on students' attitudes. We explored medical students' self-reported motivation to participate in simulation-based teamwork training (SBTT), with the hypothesis that high scores in patient safety attitudes would promote motivation to SBTT and that intrinsic motivation would increase after training.

Methods: In a prospective cohort study we explored Swedish medical students' attitudes to patient safety, their motivation to participate in SBTT and how motivation was affected by the training.

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Background: Emergency medical practices are often team efforts. Training for various tasks and collaborations may be carried out in virtual environments. Although promising results exist from studies of serious games, little is known about the subjective reactions of learners when using multiplayer virtual world (MVW) training in medicine.

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Objective: To investigate whether surgical simulation performance and previous video gaming experience would correlate with higher motivation to further train a specific simulator task and whether visual-spatial ability would rank higher in importance to surgical performance than the above. It was also examined whether or not motivation would correlate with a preference to choose a surgical specialty in the future and if simulator training would increase the interest in choosing that same work field.

Methods: Motivation and general interest in surgery was measured pre- and post-training in 30 medical students at Karolinska Institutet who were tested in a laparoscopic surgical simulator in parallel with measurement of visual-spatial ability and self-estimated video gaming experience.

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Objective: This study aimed to explore the value of individualized feedback on performance, flow and self-efficacy during simulated laparoscopy. Furthermore, we wished to explore attitudes towards feedback and simulator training among medical students.

Methods: Sixteen medical students were included in the study and randomized to laparoscopic simulator training with or without feedback.

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Background: High-fidelity patient simulators in team training are becoming popular, though research showing benefits of the training process compared to low-fidelity models is rare. We explored in situ training for paediatric teams in an emergency department using a low-fidelity model (plastic doll) and a high-fidelity paediatric simulator, keeping other contextual factors constant. The goal was to study differences in trainees' and trainers' performance along with their individual experiences, during in situ training, using either a low-fidelity model or a high-fidelity paediatric simulator.

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Situation awareness (SA) is a critical non-technical skill which affects outcome during emergency medical endeavors. Using a modified self-report instrument a significant increase of SA was found during multiplayer virtual world CPR team training among 12 medical students. Further a correlation between SA and attention was noted.

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Objective: To investigate how simulator training and non-technical factors affect laparoscopic performance among residents in obstetrics and gynecology.

Design: In this prospective study, trainees were randomized into three groups. The first group was allocated to proficiency-based training in the LapSimGyn(®) virtual reality simulator.

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In this pilot study, a new method for visualization through imaging and simulation (VIS-Ed) for teaching diagnosis and treatment of cervical spine trauma was formatively evaluated. The aims were to examine if medical students' self-efficacy would change by training using VIS-Ed, and if so these changes were related to how they evaluated the session, and the user interface (UI) of this program. Using a one-group, pre-post course test design 43 Swedish medical students (4th year, 17 males, 26 females) practiced in groups of three participants.

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Introduction: A simulator for virtual radiographic examinations was developed. In the virtual environment, the user can perform and analyze radiographic examinations of patient models without the use of ionizing radiation. We investigated if this simulation technique could improve education of radiology technology students.

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Objective: The use of nonanesthetist-administered propofol (NAAP) in GI endoscopy has long been controversial. In the setting of NAAP, acute situations can develop during endoscopy and thus training before starting with NAAPs is considered crucial. The aim was to evaluate a pilot study on crew resource management (CRM)-based training of teams of endoscopists and endoscopy nurses in NAAP in a full-scale hybrid simulation consisting of a full-scale human patient simulator and an endoscopy simulator.

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Background: Teamwork-that is, collaboration and communication-is an important factor for safe healthcare, but professions perceive the quality of teamwork differently.

Objective: To examine the relationship between simulation-based team training (SBTT) and different professions' self-efficacy, experienced quality of collaboration and communication, perceptions of teamwork and safety, together with staff turnover.

Methods: All staff (n=151; physicians, nurses and nurse assistants) in an intensive care unit (ICU) at a university hospital were systematically trained over 2 years.

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We investigated if engagement modes and perceived self-efficacy differed in surgical novices before and after randomized training in two different video games during five weeks, and a control group with no training. The control group expressed to a higher extent negative engagement modes during training in MIST-VR and GI Mentor II than the experimental groups. No statistically significant differences in self-efficacy were identified between groups.

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This RCT study aimed to investigate if VIS-Ed (Visualization through Imaging and Simulation - Education) had the potential to improve medical student education and specialist training in clinical diagnosis and treatment of trauma patients. The participants' general opinion was reported as high in both groups (lecture vs. virtual patient (VP)).

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Objective: The objective of this study was to examine the correlation between endourological simulator performance and demonstrated theoretical knowledge in the basic surgical sciences.

Material And Methods: In total, 158 fourth year medical students participated in the study, 83 females and 75 males, all surgical novices. All students performed the flexible endoscopic task Hall of Fame in the urological simulator URO Mentor™.

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Background: Approximately 300,000 people suffer sudden cardiac arrest (SCA) annually in the United States. Less than 30% of out-of-hospital victims receive cardiopulmonary resuscitation (CPR) despite the American Heart Association training over 12 million laypersons annually to conduct CPR. New engaging learning methods are needed for CPR education, especially in schools.

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Background: A growing body of evidence shows that team training can develop essential team skills and contribute to better patient outcomes. Current simulation-based team training (SBTT) programmes most often include targets and feedback focused on the whole team and/or leader, ignoring the follower as a unique entity. By considering followers' individual experiences, and tailoring behavioural targets for training and feedback, SBTT could be improved.

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Background: Multiplayer virtual world (MVW) technology creates opportunities to practice medical procedures and team interactions using serious game software. This study aims to explore medical students' retention of knowledge and skills as well as their proficiency gain after pre-training using a MVW with avatars for cardio-pulmonary resuscitation (CPR) team training.

Methods: Three groups of pre-clinical medical students, n = 30, were assessed and further trained using a high fidelity full-scale medical simulator: Two groups were pre-trained 6 and 18 months before assessment.

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Dental students are often described as stressed. The stress has, among other things, been connected to stressors in their psychosocial environment and inconsistent feedback. The hypothesis of this study was that the psychosocial work environment in dental schools leads to stress and affects the satisfaction of dental students and that tolerance for ambiguity shields students from stress.

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In this pilot study we investigated how medical students evaluated a VIS practice session. Immediately after training 43 students answered a questionnaire on the training session. They evaluated VIS as a good interactive scenario based educational tool.

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The purpose of this project was to investigate the long-term effects on skill to interpret spatial information in radiographs after conventional and simulator-supported training. The study was a follow-up of a previously reported randomized experimental study. The original study population was comprised of fifty-seven dental students.

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Objective: To analyze the relationship between visuospatial ability and simulated laparoscopy performed by consultants in obstetrics and gynecology (OBGYN).

Study Design: This was a prospective cohort study carried out at two community hospitals in Sweden. Thirteen consultants in obstetrics and gynecology were included.

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Background: New strategies for selection and training of physicians are emerging. Previous studies have demonstrated a correlation between visual-spatial ability and visual working memory with surgical simulator performance. The aim of this study was to perform a detailed analysis on how these abilities are associated with metrics in simulator performance with different task content.

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