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PURPOSE: To investigate if phacoemulsification experience impacts and transfers to the skill acquisition of novices in manual small incision cataract surgery (MSICS) within a simulation environment. SETTING: Copenhagen Academy for Medical Education and Simulation, Denmark. DESIGN: Prospective controlled experimental study. METHODS: The study included 29 residents or specialist in ophthalmology with no prior MSICS experience. Participants were required to either have 1) proficiency on the EyeSi surgical simulator (PG; phaco group) or 2) no prior extensive exposure to the EyeSi simulator or any phacoemulsification surgery experience as a primary surgeon (CG; control group). Possible skill transfer was assessed using a test on the HelpMeSee virtual-reality simulator, including nine modules and 30 steps (points). A pass/fail score was determined at 20 points (out of 30 points). Performance scores were analyzed using independent samples t-tests, pass rates using Fisher's exact test, and individual modules using Fisher-Freeman-Halton analysis. RESULT: The PG performed significantly better in terms of overall performance score (mean SD, PG; 21.8 points 2.3 versus CG; 18.9 points 2.2, p = 0.002, t-value = -3.39) and pass rates (PG; 72 % versus CG; 22%, p = 0.018). The sub-analysis for individual modules demonstrated significant differences exclusively in the capsulorhexis and cortex removal modules. CONCLUSION: The results suggest a positive inter-procedural transfer of skills between phacoemulsification and MSICS. Pretraining and experience in phacoemulsification demonstrated a significant effect on the performance of MSICS within a simulation environment. These findings suggest that phacoemulsification experience provides an advantage before MSICS training in surgical residency programs.
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Endobronchial ultrasound (EBUS) is a minimally invasive highly accurate and safe endoscopic technique for the evaluation of mediastinal lymphadenopathy and mediastinal masses including centrally located lung tumors. The combination of transbronchial and transoesophageal tissue sampling has improved lung cancer staging, reducing the need for more invasive and surgical diagnostic procedures. Despite the high level of evidence regarding EBUS use in the aforementioned situations, there are still challenges and controversial issues such as follows: Should informed consent for EBUS and flexible bronchoscopy be different? Is EBUS able to replace standard bronchoscopy in patients with suspected lung cancer? Which is the best position, screen orientation, route of intubation, and sedation/anesthesia to perform EBUS? Is it advisable to use a balloon in all procedures? How should the operator acquire skills and how should competence be ensured? This Pro-Con article aims to address these open questions.
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The objective of this study is to compare automated performance metrics (APM) and surgical gestures for technical skills assessment during simulated robot-assisted radical prostatectomy (RARP). Ten novices and six experienced RARP surgeons performed simulated RARPs on the RobotiX Mentor (Surgical Science, Sweden). Simulator APM were automatically recorded, and surgical videos were manually annotated with five types of surgical gestures. The consequences of the pass/fail levels, which were based on contrasting groups' methods, were compared for APM and surgical gestures. Intra-class correlation coefficient (ICC) analysis and a Bland-Altman plot were used to explore the correlation between APM and surgical gestures. Pass/fail levels for both APM and surgical gesture could fully distinguish between the skill levels of the surgeons with a specificity and sensitivity of 100%. The overall ICC (one-way, random) was 0.70 (95% CI: 0.34-0.88), showing moderate agreement between the methods. The Bland-Altman plot showed a high agreement between the two methods for assessing experienced surgeons but disagreed on the novice surgeons' skill level. APM and surgical gestures could both fully distinguish between novices and experienced surgeons in a simulated setting. Both methods of analyzing technical skills have their advantages and disadvantages and, as of now, those are only to a limited extent available in the clinical setting. The development of assessment methods in a simulated setting enables testing before implementing it in a clinical setting.
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Competencia Clínica , Gestos , Prostatectomía , Procedimientos Quirúrgicos Robotizados , Procedimientos Quirúrgicos Robotizados/educación , Procedimientos Quirúrgicos Robotizados/métodos , Procedimientos Quirúrgicos Robotizados/normas , Humanos , Prostatectomía/métodos , Prostatectomía/educación , Masculino , Cirujanos/educación , Análisis y Desempeño de TareasRESUMEN
BACKGROUND: Access to the neuraxial space, including lumbar punctures and neuraxial anaesthesia, is an everyday procedure in clinical practice. Traditionally these procedures rely on manual palpation technique, but ultrasound is a useful tool when patients prove challenging. Presently, there is a lack of evidence-based guidelines for technical skills acquisition, both with and without ultrasound, and likewise, competency assessment approaches vary globally. Accordingly, we aim to assess the current evidence regarding learning and assessment in neuraxial access ± $$ \pm $$ ultrasound, for future educational recommendations. METHODS: This scoping review will be conducted in accordance with the Preferred Reporting Items for Systematic and Meta-Analysis (PRISMA) statement, together with the PRISMA Extension for Scoping Reviews. A systematic search strategy will be based on a PICO approach, focusing on physicians, medical students, or nurses being exposed to education, training, or assessment in procedural neuraxial access ± $$ \pm $$ ultrasound. No comparators are obligated, but outcomes should be assessable using the Kirkpatrick four levels of training evaluation. The search will be performed in Cochrane Library, Embase, Medline, Scopus, PubMed, and CINAHL. Independently, two authors will screen the studies and conflicts will be resolved by a third author. Relevant predefined data will be extracted and analysed using a descriptive approach. The quality of the studies will be assessed using the Medical Education Research Study Quality Instrument. DISCUSSION: This scoping review will contribute by presenting gathered evidence of an overview of the different approaches to achieving education and training of technical skills in neuraxial access, and how skills are tested, which could guide research and future recommendations for skills development and assessment.
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BACKGROUND: Over the past decade, ultrasound utilization has increased within anesthesia and intensive care medicine, enhancing patient safety and diagnostic accuracy. However, the frequency of ultrasound usage and operator training in the Nordic countries remain unclear. This project aims to perform a survey on ultrasound availability, daily clinical use, and how ultrasound skills are trained and assessed, among anesthesiologists. METHODS: This online cross-sectional survey will include anesthesiologists from the Nordic countries. The survey will adhere to the CROSS checklist. Survey items will be developed based on a formative model with a conceptual model, consisting of three main parts, including demographics, ultrasound machines and use, and skills development and assessment. The clinical relevance of items will be secured by including anesthesiologists of various levels of experience in the development of the survey. Furthermore, experienced researchers in medical education will participate in the development, contributing with relevant medical educational perspectives. Data will be summarized using a non-parametric descriptive approach. A chi-squared test will examine relevant relationships between certain answers. RESULTS: Results will be published in a peer-reviewed journal and presented at relevant scientific conferences and meetings. CONCLUSION: This study may find a high availability of ultrasound machines and frequent use in the clinical departments. Despite this expected daily use of ultrasound, missing standardized structured skills acquisition and assessment could be uncovered. The results of this study may contribute to mapping various aspects of clinical ultrasound and skills development for further use in research.
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Background and study aims The number of procedures needed to acquire a sufficient level of skills to perform an unassisted evaluation of small bowel capsule endoscopy (SBCE) is unknown. We aimed to establish learning curves, diagnostic accuracy, and the number of procedures needed for reviewing small bowel capsule endoscopies unassisted. Methods An expert panel developed a 1-day course including lessons (examination, anatomy, and pathology) and hands-on training. After completing the course, participants received 50 cases in a randomized sequence. An interactive questionnaire about landmarks, findings, and diagnosis followed each case. After submitting the questionnaire, participants received feedback. Data are presented using CUSUM (cumulative sum control chart) learning curves and sensitivity/specificity analyses compared with expert opinions. Results We included 22 gastroenterologists from 11 different Danish hospitals. A total of 535 cases were reviewed (mean: 28; range: 11-50). CUSUM plots demonstrated learning progression for diagnosis and findings during the course, but none of the participants reached a learning plateau with sufficient competencies. The sensitivity for all findings was 65% (95% confidence interval [CI] 0.51-0.82) for the first 20 procedures and 67% (95% CI 0.58-0.73) from case 21 until completion or dropout. The specificity was 63% (95% CI 0.52-0.74) for the first 20 procedures and 57% (95% CI 0.37-0.77) for the rest. Conclusions Our data indicate that learning SBCE may be more difficult than previously recognized due to low discriminative abilities after 20 cases except for the identification of CD. This indicates that 20 SBCE cases may not be sufficient to achieve competency for reviewing SBCE without supervision.
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PURPOSE: To compare Manual Small Incision Cataract Surgery (MSICS) microsurgical performance in course participants who received virtual reality simulation-based training by either a surgical expert or a non-ophthalmologist instructor. SETTING: Copenhagen Academy for Medical Education and Simulation, Copenhagen, Denmark. DESIGN: Randomized controlled trial. METHODS: Residents and specialists in ophthalmology with no prior MSICS experience were included to receive virtual reality simulation training in MSICS using the HelpMeSee simulator. The participants were randomly allocated to receive training from either an experienced MSICS surgeon or a non-ophthalmologist, also known as near-peer teaching. The performances of the participants were evaluated at baseline and post-training using a MSICS proficiency-based test with evidence of validity. RESULTS: Thirty participants were included in the study and 29 completed the course. There was no significant difference in final test score between the two groups (p = 0.13). The performance score of both groups of participants increased significantly after receiving the training (p < 0.001). All participants passed the proficiency-based test after receiving the training. CONCLUSION: We found no significant difference in surgical proficiency-level whether the participants were trained by a surgical expert or a non-ophthalmologist instructor for MSICS in a virtual-reality based setting. The findings of this study suggest that near-peer teaching within microsurgical performance potentially could be applied with teaching outcomes comparable to a surgical expert-instructor.
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Postgraduate medical education often relies on the traditional lecture model with low knowledge retention rates of 5-20%. Cognitive overload from excessive information during lectures diminishes learning efficacy. To optimise learning, evidence suggests prioritising active engagement, streamlining visual aids, introducing clinical scenarios, and incorporating audience response systems may further enhance retention and comprehension. In conclusion, the traditional lecture must evolve into more interactive and engaging modalities to facilitate increased participant long-term learning as summarised in this review.
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Educación de Postgrado en Medicina , Humanos , Enseñanza , Aprendizaje , Recursos AudiovisualesRESUMEN
BACKGROUND AND PURPOSE: Orthopedic trainees frequently perform short antegrade femoral nail osteosynthesis of trochanteric fractures, but virtual reality simulation-based training (SBT) with haptic feedback has been unavailable. We explored a novel simulator, with the aim of gathering validity evidence for an embedded test and setting a credible pass/fail standard allowing trainees to practice to proficiency. PATIENTS AND METHODS: The research, conducted from May to September 2020 across 3 Danish simulation centers, utilized the Swemac TraumaVision simulator for short antegrade femoral nail osteosynthesis. The validation process adhered to Messick's framework, covering all 5 sources of validity evidence. Participants included novice groups, categorized by training to plateau (n = 14) or to mastery (n = 10), and experts (n = 9), focusing on their performance metrics and training duration. RESULTS: The novices in the plateau group and experts had hands-on training for 77 (95% confidence interval [CI] 59-95) and 52 (CI 36-69) minutes while the plateau test score, defined as the average of the last 4 scores, was 75% (CI 65-86) and 96% (CI 94-98) respectively. The pass/fail standard was established at the average expert plateau test score of 96%. All novices in the mastery group could meet this standard and interestingly without increased hands-on training time (65 [CI 46-84] minutes). CONCLUSION: Our study provides supporting validity evidence from all sources of Messick's framework for a simulation-based test in short antegrade nail osteosynthesis of intertrochanteric hip fracture and establishes a defensible pass/fail standard for mastery learning of SBT. Novices who practiced using mastery learning were able to reach the pre-defined pass/fail standard and outperformed novices without a set goal for external motivation.
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Clavos Ortopédicos , Competencia Clínica , Entrenamiento Simulado , Humanos , Entrenamiento Simulado/métodos , Fracturas de Cadera/cirugía , Femenino , Masculino , Adulto , Fijación Interna de Fracturas/educación , Fijación Interna de Fracturas/métodos , Fijación Intramedular de Fracturas/educación , Fijación Intramedular de Fracturas/métodos , Ortopedia/educación , DinamarcaRESUMEN
BACKGROUND: Surgical skills acquisition is under continuous development due to the emergence of new technologies, and there is a need for assessment tools to develop along with these. A range of neuroimaging modalities has been used to map the functional activation of brain networks while surgeons acquire novel surgical skills. These have been proposed as a method to provide a deeper understanding of surgical expertise and offer new possibilities for the personalized training of future surgeons. With studies differing in modalities, outcomes, and surgical skills there is a need for a systematic review of the evidence. This systematic review aims to summarize the current knowledge on the topic and evaluate the potential use of neuroimaging in surgical education. METHODS: We conducted a systematic review of neuroimaging studies that mapped functional brain activation while surgeons with different levels of expertise learned and performed technical and non-technical surgical tasks. We included all studies published before July 1st, 2023, in MEDLINE, EMBASE and WEB OF SCIENCE. RESULTS: 38 task-based brain mapping studies were identified, consisting of randomized controlled trials, case-control studies, and observational cohort or cross-sectional studies. The studies employed a wide range of brain mapping modalities, including electroencephalography, functional magnetic resonance imaging, positron emission tomography, and functional near-infrared spectroscopy, activating brain areas involved in the execution and sensorimotor or cognitive control of surgical skills, especially the prefrontal cortex, supplementary motor area, and primary motor area, showing significant changes between novices and experts. CONCLUSION: Functional neuroimaging can reveal how task-related brain activity reflects technical and non-technical surgical skills. The existing body of work highlights the potential of neuroimaging to link task-related brain activity patterns with the individual level of competency or improvement in performance after training surgical skills. More research is needed to establish its validity and usefulness as an assessment tool.
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Competencia Clínica , Neuroimagen , Humanos , Neuroimagen/métodos , Encéfalo/diagnóstico por imagen , Encéfalo/fisiología , Mapeo Encefálico/métodos , Imagen por Resonancia Magnética/métodos , Tomografía de Emisión de Positrones/métodos , ElectroencefalografíaRESUMEN
BACKGROUND AND AIMS: Endoscopists' competence can vary widely, as shown in the variation in the adenoma detection rate (ADR). Computer-aided quality assessment (CAQ) can automatically assess performance during individual procedures. In this review we identified and described different CAQ systems for colonoscopy. METHODS: A systematic review of the literature was done using MEDLINE, EMBASE, and Scopus based on 3 blocks of terms according to the inclusion criteria: colonoscopy, competence assessment, and automatic evaluation. Articles were systematically reviewed by 2 reviewers, first by abstract and then in full text. The methodological quality was assessed using the Medical Education Research Study Quality Instrument (MERSQI). RESULTS: Of 12,575 identified studies, 6831 remained after removal of duplicates and 6806 did not pass the eligibility criteria and were excluded, leaving 25 studies, of which 13 studies were included in the final analysis. Five categories of CAQ systems were identified: withdrawal speedometer (7 studies), endoscope movement analysis (3 studies), effective withdrawal time (1 study), fold examination quality (1 study), and visual gaze pattern (1 study). The withdrawal speedometer was the only CAQ system that tested its feedback by examining changes in ADR. Three studies observed an improvement in ADR, and 2 studies did not. The methodological quality of the studies was high (mean MERSQI, 15.2 points; maximum, 18 points). CONCLUSIONS: Thirteen studies developed or tested CAQ systems, most frequently by correlating it to the ADR. Only 5 studies tested feedback by implementing the CAQ system. A meta-analysis was impossible because of the heterogeneous study designs, and more studies are warranted.
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Competencia Clínica , Colonoscopía , Humanos , Colonoscopía/normas , Adenoma/diagnóstico , Garantía de la Calidad de Atención de SaludRESUMEN
Objectives: The prospect of extended reality (XR) being integrated with surgical training curriculum has attracted scholars. However, there is a lack of bibliometric analysis to help them better understand this field. Our aim is to analyze relevant literature focusing on development trajectory and research directions since the 21st century to provide valuable insights. Methods: Papers were retrieved from the Web of Science Core Collection. Microsoft Excel, VOSviewer, and CiteSpace were used for bibliometric analysis. Results: Of the 3337 papers published worldwide, China contributed 204, ranking fifth. The world's enthusiasm for this field has been growing since 2000, whereas China has been gradually entering since 2001. Although China had a late start, its growth has accelerated since around 2016 due to the reform of the medical postgraduate education system and the rapid development of Chinese information technology, despite no research explosive period has been yet noted. International institutions, notably the University of Toronto, worked closely with others, while Chinese institutions lacked of international and domestic cooperation. Sixteen stable cooperation clusters of international scholars were formed, while the collaboration between Chinese scholars was not yet stable. XR has been primarily applied in orthopedic surgery, cataract surgery, laparoscopic training and intraoperative use in neurosurgery worldwide. Conclusions: There is strong enthusiasm and cooperation in the international research on the XR-based surgical training. Chinese scholars are making steady progress and have great potential in this area. There has not been noted an explosive research phase yet in the Chinese pace. The research on several surgical specialties has been summarized at the very first time. AR will gradually to be more involved and take important role of the research.
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No studies have reported on the impact at team level of the Medtronic Hugo™ RAS system. We described the work patterns and learning curves of an experienced robotic nurse team adapting to the new robotic system. We prospectively recorded the robotic nurse team's preoperative, perioperative, and postoperative tasks on the first 30 robotic procedures performed. The data were descriptively analyzed, and Gantt Charts were created for a timeline overview of the work patterns. We compared the operative times between the Medtronic Hugo™ RAS and the Davinci® system. The preoperative phase seemed to improve with a median time of 94 min (IQR 81-107). After 20 surgeries, the work pattern became more consistent where the scrub and circulating nurses worked simultaneously. There was no noticeable improvement for the perioperative and postoperative phases with a stable median time of 170 min (IQR 135-189) and 26 min (IQR 22-31). We found that the work pattern seemed to stabilize after 20 surgeries but with a continued decrease in preoperative time without a learning curve plateau. The robotic nurse team suffered from few breaks and long working hours because only a few nurses at our facility were trained in the Hugo™ system.
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Procedimientos Quirúrgicos Robotizados , Robótica , Humanos , Procedimientos Quirúrgicos Robotizados/métodos , Curva de Aprendizaje , Tempo OperativoRESUMEN
Objective: Surgeon-performed head and neck ultrasound (US) is increasingly used among otolaryngologists in office-based and surgical settings. However, it is unknown how formal US training affects otolaryngology residents' diagnostic workup of patients with cervical pathology. This study examined how a formal US course for residents affected their outpatient clinic US performance and diagnostic accuracy. Methods: We conducted a randomized cross-over trial, where 13 otolaryngology residents participated in a 6-h formal US course. Participants were randomized to perform head and neck US on four patient cases before and after completing the course. Eight patients with and without neck pathology were invited to participate as test cases. The ultrasound examinations were video recorded and anonymized before two consultants rated the US performance using the Objective Structured Assessment of Ultrasound Skills (OSAUS) scale. Otolaryngology residents wrote an ultrasound report with a diagnosis based on their US examination, which was used to calculate the specificity and sensitivity. Results: We found a statistically significant difference in the OSAUS score before compared to after the hands-on training (p = .035). The diagnostic accuracy also increased from 62% before the course to 75% after the course (p = .02). Specificity increased from 54% prior to the course to 62% following the course, and sensitivity increased from 64% prior to the course to 79% following the course. The intraclass correlation coefficient with "absolute agreement" was 0.63. Conclusion: This study demonstrates that short, formal ultrasound training can improve otolaryngology residents' ultrasound skills and diagnostic accuracy in an outpatient clinic setting. Lay summary: This study looks at the change of otolaryngology residents' diagnostic workup of patients after they take a formal ultrasound course and shows that they get better at using ultrasound and make more accurate diagnoses if they take a formal course. Level of Evidence: Level 2.
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BACKGROUND: Mastering laparoscopy is challenging-it requires specific psychomotor skills which are difficult to obtain in the operating room without potentially compromising patient safety. Proficiency-based training programs using virtual reality simulators allow novices to practice and develop their skills in a patient-safe learning environment. Variable practice leads to stronger retention and skills transfer in a non-surgical setting. The objective of this trial was to investigate if variable practice was superior to self-directed training. METHODS: A randomized trial where participants (n = 36) were randomized to proficiency-based laparoscopic simulator training of basic skills using either variable practice or self-directed training, followed by a transfer test with proficiency-based training on a procedural task (a salpingectomy). All participants returned after a period of 3-5 weeks to perform a retention test. RESULTS: The mean time to proficiency for the basic skills tasks were 119 min (SD: 93) for the variable practice group versus 182 min (SD: 46) for the self-directed training group (p = 0.015). The time to reach proficiency during the transfer test was 103 min (SD: 57) versus 183 min (SD: 64) for the variable practice group versus the self-directed training group, respectively (p < 0.001). The mean time to proficiency for the retention test was 51 min (SD: 26) and 109 min (SD: 53) for the variable practice group and self-directed training group, respectively (p < 0.001). CONCLUSION: Variable practice is superior to self-directed training for proficiency-based laparoscopic training. With variable time to practice proficiency is reduced, there is higher transfer to a procedural task, and retention is improved.
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Educación de Pregrado en Medicina , Laparoscopía , Entrenamiento Simulado , Realidad Virtual , Humanos , Competencia Clínica , Simulación por Computador , Laparoscopía/educación , AprendizajeRESUMEN
BACKGROUND: Robotic-assisted complete mesocolic excision is an advanced procedure mainly because of the great variability in anatomy. Phantoms can be used for simulation-based training and assessment of competency when learning new surgical procedures. However, no phantoms for robotic complete mesocolic excision have previously been described. This study aimed to develop an anatomically true-to-life phantom, which can be used for training with a robotic system situated in the clinical setting and can be used for the assessment of surgical competency. METHODS: Established pathology and surgical assessment tools for complete mesocolic excision and specimens were used for the phantom development. Each assessment item was translated into an engineering development task and evaluated for relevance. Anatomical realism was obtained by extracting relevant organs from preoperative patient scans and 3D printing casting moulds for each organ. Each element of the phantom was evaluated by two experienced complete mesocolic excision surgeons without influencing each other's answers and their feedback was used in an iterative process of prototype development and testing. RESULTS: It was possible to integrate 35 out of 48 procedure-specific items from the surgical assessment tool and all elements from the pathological evaluation tool. By adding fluorophores to the mesocolic tissue, we developed an easy way to assess the integrity of the mesocolon using ultraviolet light. The phantom was built using silicone, is easy to store, and can be used in robotic systems designated for patient procedures as it does not contain animal-derived parts. CONCLUSIONS: The newly developed phantom could be used for training and competency assessment for robotic-assisted complete mesocolic excision surgery in a simulated setting.
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Neoplasias del Colon , Laparoscopía , Mesocolon , Procedimientos Quirúrgicos Robotizados , Humanos , Mesocolon/diagnóstico por imagen , Mesocolon/cirugía , Procedimientos Quirúrgicos Robotizados/métodos , Neoplasias del Colon/cirugía , Colectomía/métodos , Escisión del Ganglio Linfático/métodos , Diagnóstico por Imagen , Impresión Tridimensional , Laparoscopía/métodosRESUMEN
AIM: There is currently an increased focus on competency-based training, in which training and assessment play a crucial role. The aim of this systematic review is to create an overview of hands-on training methods and assessment tools for appendicectomy and colon and rectal surgery procedures using either an open, laparoscopic or robot-assisted approach. METHOD: A systematic review of Medline, Embase, Cochrane and Scopus databases was conducted following the PRISMA guidelines. We conducted the last search on 9 March 2023. All published papers describing hands-on training, evaluation of performance data and development of assessment tools were eligible. The quality of studies and the validity evidence of assessment tools are reported. RESULTS: Fifty-one studies were identified. Laparoscopic assessment tools are abundant, but the literature still lacks good-quality assessment tools for open appendicectomy, robotic colectomy and open rectal surgery. Overall, there is a lack of discussion regarding the establishment of pass/fail standards and the consequences of assessment. Virtual reality simulation is used more for appendicectomy than colorectal procedures. Only a few of the studies investigating training were of acceptable quality. There is a need for high-quality studies in open and robotic-assisted colon surgery and all approaches to rectal surgery. CONCLUSION: This review provides an overview of current training methods and assessment tools and identifies where more research is needed based on the quality of the studies and the current validity evidence.
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Apendicectomía , Competencia Clínica , Cirugía Colorrectal , Laparoscopía , Humanos , Apendicectomía/métodos , Apendicectomía/educación , Cirugía Colorrectal/educación , Laparoscopía/educación , Laparoscopía/métodos , Procedimientos Quirúrgicos Robotizados/educación , Procedimientos Quirúrgicos Robotizados/métodos , Colectomía/métodos , Colectomía/educación , Colectomía/normasRESUMEN
PURPOSE: To investigate whether individuals with long-term reduced stereopsis were able to obtain the same level of surgical skills in simulated vitreoretinal surgery on the Eyesi Surgical Simulator as individuals with normal stereopsis. METHODS: Twenty-four medical students were recruited and divided into two groups according to their degree of stereopsis: Group 1 (n = 12) included subjects with normal stereopsis (60 arcsec or lower) and Group 2 (n = 12) included subjects with reduced stereopsis (120 arcsec or higher). Stereopsis was tested using the TNO test (Lameris Ootech BV, Nieuwegein, the Netherlands). The participants were trained in virtual reality-simulated vitreoretinal surgery and continuously measured using a test with solid validity evidence and a pre-defined pass-fail score. All data were analysed using the Wilcoxon rank sum test. RESULTS: We observed no differences in overall performance scores for any of the four modules. The participants with reduced stereopsis used 5.8 more attempts in bimanual training (p = 0.04), 8.8 more attempts in removal of posterior hyaloid (p = 0.04), 9.1 more attempts in navigation training (p = 0.20) and 0.3 fewer attempts in removal of internal limiting membrane (p = 0.69). CONCLUSION: The final performance scores on the Eyesi Surgical Simulator were independent of the degree of stereopsis. However, the number of attempts to achieve the pre-defined pass-fail score increased significantly with reduced stereopsis in two of four modules. These results indicate that a high degree of stereopsis is not necessary to become proficient in microsurgery but may prolong the learning curve.
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Competencia Clínica , Percepción de Profundidad , Curva de Aprendizaje , Cirugía Vitreorretiniana , Humanos , Percepción de Profundidad/fisiología , Cirugía Vitreorretiniana/educación , Masculino , Femenino , Oftalmología/educación , Adulto Joven , Adulto , Estudiantes de MedicinaRESUMEN
OBJECTIVES: Interventional musculoskeletal ultrasound (MSUS) procedures are routinely performed in rheumatology practice. However, the efficacy and safety of the procedures rely on the competence of the physician, and assessment of skills is crucial. Thus, this study aimed to develop and establish validity evidence for a tool assessing trainees' interventional MSUS skills. METHODS: An expert panel of rheumatologists modified an existing tool for assessing competences in invasive abdominal and thoracic ultrasound procedures. The new tool (the Assessment of Interventional Musculoskeletal Ultrasound Skills (AIMUS) tool) reflects the essential steps in interventional MSUS. To establish validity evidence, physicians with different levels of interventional MSUS experience were enrolled and performed two procedures on a rubber fantom, simulating real patient cases. All performances were video recorded, anonymized, and assessed in random order by two blinded raters using the AIMUS tool. RESULTS: Sixty-five physicians from 21 different countries were included and categorized into groups based on their experience, resulting in 130 videos for analysis. The internal consistency of the tool was excellent, with a Cronbach's alpha of 0.96. The inter-case reliability was good with a Pearson's correlation coefficient (PCC) of 0.74 and the inter-rater reliability was moderate to good (PCC 0.58). The ability to discriminate between different levels of experience was highly significant (p< 0.001). CONCLUSIONS: We have developed and established validity evidence for a new interventional MSUS assessment tool. The tool can be applied in future competency-based educational programs, provide structured feedback to trainees in daily clinical practice, and ensure end-of-training competence.