Validation of the ViGaTu Immersive Virtual Reality Endoscopy Training System for Physicians and Nurses.

BACKGROUND AND AIMS: Endoscopy simulators are primarily designed to provide training in interventions performed during procedures. Peri-interventional tasks such as checking patient data, filling out forms for team time-out, patient monitoring, and performing sedation are often not covered. This study assesses the face, content, and construct validity of the ViGaTu (Virtual Gastro Tutor) immersive virtual reality (VR) simulator in teaching these skills. METHODS: 71 nurses and physicians were invited to take part in VR training. The participants experienced an immersive VR simulation of an endoscopy procedure, including setting up the endoscopic devices, checking sign-in and team time-out forms, placing monitoring devices, and performing sedation. The actions performed by the participants and their timing were continuously recorded. Face and content validity, as well as the System Usability Scale (SUS), were then assessed. RESULTS: 43 physicians and 28 nurses from 43 centers took a mean of 27.8 min (standard deviation ± 14.42 min) to complete the simulation. Seventy-five percent of the items for assessing face validity were rated as realistic, and 60% of items assessing content validity and usefulness of the simulation for different learning goals were rated as useful by the participants (four out of five on a Likert scale). The SUS score was 70, demonstrating a high degree of usability. With regard to construct validity, experienced endoscopy staff were significantly faster in setting up the endoscope tower and instruments than beginners. CONCLUSIONS: This multicenter study presents a new type of interdisciplinary endoscopy training system featuring peri-interventional tasks and sedation in an immersive VR environment.

[Interprofessional knowledge and skills training of the insertion technique for the PEG placement on simulators - development and testing of a national curriculum for physicians and nurses]. / Interprofessionelles Wissens- und Skillstraining der PEG-Anlage an Simulatoren ­ Entwicklung und Testung eines nationalen Curriculums für Ärzte und spezialisierte Pflegende.

INTRODUCTION: Expert opinion within the field of gastroenterology mandates a national training curriculum to be completed prior to performing a percutaneous endoscopic gastrostomy (PEG).The goal of the present study is both the development and evaluation of such a curriculum, thus aiming to provide physicians and nurses with the necessary knowledge and skills to safely perform the PEG procedure. METHODS: Testing was performed using a non-randomized, interventional pilot study on simulators. This included a: (1) preparatory, (2) theoretical, and (3) practical phase. Following the theoretical phase, cognitive skills were assessed with a knowledge test. During the practical phase, each participant's puncture procedure was recorded with a multi-channel video, and sensorimotor skills were evaluated with an assessment instrument (AS-PEG). Finally, participant satisfaction was evaluated using a questionnaire. RESULTS: Seven physicians and 17 nurses completed all phases and final examinations, as defined in the curriculum. An average of 70.3 ±â€Š3.7 (61-75) of 76 points and 37.1 ±â€Š2.1 (32-40) of 42 points were achieved in the knowledge and acquired sensorimotor skills tests, respectively. Overall, the evaluation revealed a high level of satisfaction among the participants with respect to content, achievement of learning objectives, and acquired practical skills. CONCLUSION: Dissemination of the curriculum is deemed useful and necessary to provide the theoretical and practical knowledge for physicians and nurses through a structured inter-professional knowledge and skills-training format and to offer nurses a legally secure framework.

Development and Pilot Validation of an Instrument Assessing Sensorimotor Skills for Percutaneous Gastral Puncture.

INTRODUCTION: The acquisition of sensorimotor skills, so-called "technical skills", plays an essential part in the professional and continuing educational training of medical and nursing staff. Facilities turn to simulator training to promote the safe and accurate performance of endoscopic examinations. Thus, this study aimed to develop and pilot-test a corresponding assessment instrument to monitor necessary sensorimotor or "technical" skills of the examiner for a safe percutaneous endoscopic gastrostomy (AS-PEG). MATERIALS AND METHODS: Instrument development and pilot validation involved four stages: identification of potential items and initial draft of the AS-PEG; expert panel with 11 experts (content validity index [CVI] calculated); empirical validation using a quasi-experimental intervention on simulators; revision of the pilot AS-PEG taking expert assessment, and empirical testing into consideration. RESULTS: The initial instrument yielded 13 categories and 44 items describing the PEG procedure. Experts rated 30 out of 44 items (68%) extremely or very important for the safety of the puncture of the stomach. Initial item-CVIs ranged from 0.00 to 1.00; scale-CVI was 0.61. Twenty-four trainees (7 physicians, 17 nurses) participated in the pilot simulation study. On average, 8:25 min were required for PEG placement (min-max 5:59-13:38 min, SD = 1:43). The revised AS-PEG version was reduced to 14 items with a range of the item CVI from 0.8 to 1.0, and a scale-CVI of 0.90. CONCLUSION: The AS-PEG instrument facilitates the evaluation of sensorimotor skills during percutaneous gastric puncture procedures within the context of PEG placement, across professions and without relating to the number of procedures previously performed. The instrument is economical and shows satisfying content validity.

[Comparison of safety insertion techniques of percutaneous endoscopic gastrostomy in nurses and physicians - a non-randomized interventional pilot study on a simulation model]. / Vergleich der Sicherheit der perkutan gastralen Punktion im Rahmen der PEG-Anlage zwischen Ärzten und spezialisierten Pflegenden ­ eine nicht randomisierte, interventionelle Pilotstudie an Simulatoren.

Percutaneous endoscopic gastrostomy (PEG) insertion represents a standardized procedure for enteral nutrition in patients with long-term eating difficulties for various reasons. In a clinical setting, delegation of stomach puncture and placement of a PEG tube, within the context of percutaneous endoscopic gastrostomy amongst nurses, occurs. In Germany, there are no studies yet showing the differences between physicians and nurses regarding the safety of percutaneous stomach puncture.In a non-randomized quasi-experimental interventional study on a simulation model, the safety of stomach puncture within the context of percutaneous endoscopic gastrostomy between physicians and nurses with special training was compared. Technical skills were recorded with video cameras and provided the basis for the following analysis. The study contained: (1) a theoretical preparation phase, (2) training on simulation model and a repeated practice of the skills, and (3) stomach puncture on the simulation model. The actions were recorded with a multichannel video technique. As part of the concept, nurses and physicians were trained together in theory and practice. The analysis was conducted with the newly designed Assessment Instrument Percutaneous Endoscopic Gastrostomy (AS-PEG). Seven physicians and 17 nurses took part in the pilot study. On average, the physicians reached a score of 36.4 ±â€Š2.2 (33 - 39) and nurses 37.4 ±â€Š2 (32 - 40), while the maximum score was 42. The evaluation of technical skills on the recorded videos by means of Assessment Instrument Percutaneous Endoscopic Gastrostomy (AS-PEG) showed no tendency to significant differences between physicians and nurses after theoretical and practical training. The study contributes a first objective evaluation of technical skills on stomach puncture within the context of percutaneous endoscopic gastrostomy with the newly designed AS-PEG.