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At least 415 records · Page 23Linked to original sources

A simplified simulator for the training and evaluation of laparoscopic skills.

BACKGROUND: Laparoscopic skills can be measured objectively in a video-laparoscopic cart simulator system. These scores have been shown to be sufficiently sensitive to distinguish differences in performance between residents at different levels of training. The purpose of this study was to compare a simplified mirrored-box simulator to the video-laparoscopic cart system. METHODS: A total of 22 surgical residents performed seven structured tasks in both simulators in random order. Scores reflected precision and speed. The tasks were transferring, cutting, clip + divide, looping, mesh placement + fixation, and suturing with intracorporeal and extracorporeal knots. RESULTS: There were no significant differences in mean raw scores between the simulators for six of the seven tasks. Resident total scores correlated well between simulators (r = 0.68, p = 0.001). Resident ranking also correlated well (r = 0.69, p < 0. 001). CONCLUSIONS: A mirrored-box simulator was shown to provide a reasonable reflection of relative performance of laparoscopic skills. Practical, effective laparoscopic skills training and evaluation can be accomplished without the need for cumbersome equipment.

Clinical Competence↗

Online remeshing for soft tissue simulation in surgical training.

To graphically model and animate the realistic behavior of deformable tissue in surgical simulations, the authors' system adapts tetrahedra resolution by dynamically retessellating the mesh in and around the regions of interest. This technique overcomes limitations of previous methods that made it difficult to modify the mesh's topology online.

Computer Graphics↗

Investigation of training needs for functional endoscopic sinus surgery (FESS).

The use of simulators for training FESS may in the future offer substantial advantages like increased exposure to difficult scenarios, reduced learning curves, and reduced costs. Training simulators may range from very simple, involving only visual simulation, to more complex, involving haptic simulation or force feedback. To effectively employ these training means, insight is needed into the training needs for FESS procedure. A study was carried out to investigate which subtasks of FESS are hardest to perform and have the longest learning curve. A questionnaire was distributed among two groups of Ear, Nose and Throat (ENT) surgeons participating in a basic, as well as in an advanced sinus surgery course. Results showed that tasks related to spatial orientation are judged as hardest, whereas manual tasks are considered less difficult. These results suggest that simulators will not necessarily need haptic feedback to train the most important knowledge and skills needed for FESS.

Attitude of Health Personnel↗

Mobile patient simulator for resuscitation training with automatic external defibrillators.

Resuscitation training has to be performed under most realistic conditions. This includes both usual CPR measures (breathing and chest compressions) and advanced measures, e.g. the usage of an Automatic External Defibrillator (AED). Almost all currently available simulators for ECG signals used in such trainings have a rather limited variety of available ECG signals. The trainer also has to change between different rhythms manually, resulting in a less realistic training environment. The development will result in mobile ECG simulator which can automatically react to events in the resuscitation process according to pre-programmed scenarios. It also has potential to simulate other physiological parameters like thorax impedance in the future.

Cardiopulmonary Resuscitation↗

The role of human patient simulators in health-care training.

The use of human patient simulators in UK health-care training is increasing. These devices are educational tools for imparting knowledge, teaching technical skills, drill training and human factors training for single or multidisciplinary groups. This article explores some of the ways in which they are used, illustrated with examples of simulation training at Barts and the London Medical Simulation Centre.

Clinical Competence↗

Comparison of a virtual reality simulator and simulated limbs for phlebotomy training.

The current study compared the CathSim virtual reality simulator with simulated limbs for phlebotomy training. In the first experiment, medical students completed two 1-hour training sessions using 1 of the 2 methods. Afterward, the students' performance was assessed with both simulated limbs and genuine patients. The results showed that students trained with the simulated limbs achieved higher scores on both the posttest and the field test with actual patients than those trained on the CathSim system. In the second study, graduate students practiced with the CathSim system for 5 hours. The results showed a significant improvement in scores from pretest to posttest for these students. However, even after extended practice, their final scores did not differ from those of the medical students in the first experiment. Critical differences in design characteristics between the 2 systems may explain these findings. Although the authors observed a clear advantage for simulated limbs over the CathSim system, neither system faithfully represents all of steps needed to perform the procedure. Thus, training decisions may require that the unique advantages afforded by each system be considered.

Adult↗

Simulated casualties and medics for emergency training.

The MediSim system extends virtual environment technology to allow medical personnel to interact with and train on simulated casualties. The casualty model employs a three-dimensional animated human body that displays appropriate physical and behavioral responses to injury and/or treatment. Medical corpsmen behaviors were developed to allow the actions of simulated medical personnel to conform to both military practice and medical protocols during patient assessment and stabilization. A trainee may initiate medic actions through a mouse and menu interface; a VR interface has also been created by Stansfield's research group at Sandia National Labs.

Computer Simulation↗

Papaya: a simulation model for training in uterine aspiration.

Family medicine physicians from several residency programs received training in manual vacuum aspiration (MVA) using papayas as low-cost simulation models. Ninety-two percent of trainees (n = 26) rated the value of the simulation practice as "high," and 73% of trainees from a separate session (n = 11) reported that it would change the way they managed patients. Trainees asked to rate their perceptions before and after simulated practice (n = 16) indicated a 55% decrease in perceived difficulty of uterine evacuation and a 275% increase in procedural confidence. These preliminary measures suggest that simulation is an effective first step in teaching uterine aspiration procedures.

Carica↗

Expanding acute care nurse practitioner and clinical nurse specialist education: invasive procedure training and human simulation in critical care.

Programs educating advanced practice nurses (APNs), including acute care nurse practitioners (ACNPs) and clinical nurse specialists (CNSs) may struggle with the degree to which technical and cognitive skills necessary and unique to the care of critically ill patients should be incorporated within training programs, and the best ways these skills can be synthesized and retained for clinical practice. This article describes the critical care technical skills training mechanisms and use of a High-Fidelity Human Simulation (HFHS) Laboratory in the ACNP and CNS programs at the University of Pittsburgh School of Nursing. The mechanisms for teaching invasive procedures are reviewed including an abbreviated course syllabus and documentation tools. The use of HFHS is discussed as a measure to provide students with technical and cognitive preparation to manage critical incidents. The HFHS Laboratory, scenario development and implementation, and the debriefing process are discussed. Critical care technical skills training and the use of simulation in the curriculum have had a favorable response from students and preceptors at the University of Pittsburgh School of Nursing, and have enhanced faculty's ability to prepare APNs.

Acute Disease↗

DTkid: interactive simulation software for training tutors of children with autism.

Discrete-trial training (DTT) relies critically on implementation by trained tutors. We report three experiments carried out in the development of "DTkid"--interactive computer simulation software that presents "SIMon", a realistic virtual child with whom novice tutors can learn and practise DTT techniques. Experiments 1 and 2 exposed groups of participants either to DTkid training or to a control task. Participants in the former groups demonstrated significantly greater procedural and declarative knowledge of DTT. Experiment 3 confirmed this finding, further demonstrating that observation of DTkid training trials alone was sufficient to enhance participants' declarative and procedural knowledge of DTT. Results indicate that DTkid offers the potential for an effective means of teaching DTT skills to novice tutors of children with autism.

Adult↗

Simulation technology in training students, residents and faculty.

PURPOSE OF REVIEW: We provide an overview of the developments in medical education and assessment using high-fidelity simulation. Both descriptive and research papers recently published in the English language are included in this review. RECENT FINDINGS: The majority of articles reviewed are descriptive in nature, outlining the use of simulation for various educational purposes in undergraduate, postgraduate and continuing medical education. Some articles focus on the use of simulation for the acquisition of technical skills in different surgical disciplines using part-task simulation. Other disciplines such as emergency medicine, critical care, paediatrics and nursing have also contributed to the literature in this area. Very little research in the area of simulation is evident in the literature addressing the actual value or the reliability and validity of high-fidelity simulation as an evaluation tool during this time period. A strong interest in decreasing human error and the improvement in patient safety may indicate the future direction of high-fidelity simulation. SUMMARY: Simulation is receiving increasing support as an educational tool and in its use for evaluation purposes. Research into this area is still somewhat limited. As the research impetus increases in the future, we may see simulation as a major focus in all disciplines with respect to its use in the improvement of patient safety. Team training, including both personality and attitudinal issues similar to those performed in other high hazard industries, may become increasingly evident in the literature in the coming decade.

Journal Article↗

A method for measuring the effectiveness of simulation-based team training for improving communication skills.

Team behavior and coordination, particularly communication or team information-sharing, are critical for optimizing team performance; research in medicine generally provides no accepted method for measurement of team information-sharing. In a controlled simulator setting, we developed a technique for placing clinical information (probes) with members of a team of trainees participating in a 1-day Anesthesia Crisis Resource Management course and later tested the teams for knowledge of the probes as an indicator of overall team information-sharing. Despite the low level of team information-sharing, we demonstrated construct validity of the probe methodology by the correlation of measured change in team information-sharing from beginning to end of training with self-rated change. There was no statistical difference in "group sharing" from beginning to end of training, despite trainees' survey responses that the course would be useful for their education and practice.

Communication↗

Evaluation of four airway training manikins as simulators for inserting the LMA Classic*.

Airway manikins have traditionally been used for teaching mask ventilation and tracheal intubation. There is an increasing need to use manikins for training in procedures such as insertion of the laryngeal mask airway. We have assessed four new airway training manikins (latest versions of the Airway Trainer (Laerdal, Norway), Airway Management Trainer (Ambu, UK), 'Bill 1' (VBM, Germany) and Airsim (Trucorp, Ireland)) as simulators for insertion of the LMA Classic laryngeal mask airway. Twenty volunteer anaesthetists inserted a size-4 laryngeal mask airway five times into each of the four manikins, in random order. Each insertion was assessed using objective and subjective tests. Subjective assessment varied widely but overall assessment indicated that the Airway Management Trainer was the poorest simulator for insertion of the laryngeal mask airway. The 'Bill 1' and Airsim manikins performed best as simulators for insertion of the laryngeal mask airway, although realistic ventilation with 'Bill 1' was not possible.

Anesthesiology↗

Randomized clinical trial of virtual reality simulation for laparoscopic skills training.

BACKGROUND: This study examined the impact of virtual reality (VR) surgical simulation on improvement of psychomotor skills relevant to the performance of laparoscopic cholecystectomy. METHODS: Sixteen surgical trainees performed a laparoscopic cholecystectomy on patients in the operating room (OR). The participants were then randomized to receive VR training (ten repetitions of all six tasks on the Minimally Invasive Surgical Trainer-Virtual Reality (MIST-VR)) or no training. Subsequently, all subjects performed a further laparoscopic cholecystectomy in the OR. Both operative procedures were recorded on videotape, and assessed by two independent and blinded observers using predefined objective criteria. Time to complete the procedure, error score and economy of movement score were assessed during the laparoscopic procedure in the OR. RESULTS: No differences in baseline variables were found between the two groups. Surgeons who received VR training performed laparoscopic cholecystectomy significantly faster than the control group (P=0.021). Furthermore, those who had VR training showed significantly greater improvement in error (P=0.003) and economy of movement (P=0.003) scores. CONCLUSION: Surgeons who received VR simulator training showed significantly greater improvement in performance in the OR than those in the control group. VR surgical simulation is therefore a valid tool for training of laparoscopic psychomotor skills and could be incorporated into surgical training programmes.

Cholecystectomy, Laparoscopic↗

Computer-assisted training program for simulation of triage, resuscitation, and evacuation of casualties.

The purpose of this paper is to introduce a multimedia computer software package that has been developed for the Federal Armed Forces of Germany to train military physicians in trauma management. The program presents different groups of casualties with characteristic wounds and multiple injuries on a CD-ROM and provides many clinical options at each decision point. Automatically evaluating the decisions for accuracy, the objective of the program is to train for triage, resuscitation, and evacuation of wounded in combat under pressure of time. The computer-assisted instruction program is inexpensive and allows easily accessible self-instruction as a supplement to formal classroom training. Using this teaching software, it may be possible to teach a standardized emergency case-management algorithm for battlefield trauma. There was a high level of acceptance for this type of instruction. This is encouraging for medical educators involved in producing multimedia packages for teaching emergency medicine.

CD-ROM↗