Usefulness of low-cost simulation models to learning surgical techniques for placenta accreta spectrum: An observational educational study.

OBJECTIVE: To evaluate the utility of low-cost simulation models to teach surgical techniques for placenta accreta spectrum (PAS), included in a multimodal education workshop for PAS. METHODS: This was an observational, survey-based study. Participants were surveyed before and after the use of low-fidelity mannequins to simulate two surgical techniques for PAS (one-step conservative surgery [OSCS] and modified subtotal hysterectomy [MSTH]), within a multimodal educational workshop. The workshops included pre-course preparation, didactics, simulated practice of the techniques using low-cost models, and viewing live surgery. RESULTS: Six OSCS/MSTH training workshops occurred across six countries and a total of 270 participants were surveyed. The responses of 127 certified obstetricians and gynecologists (OB-GYNs) were analyzed. Participants expressed favorable impressions of all components of the simulated session. Perceived anatomical simulator fidelity, scenario realism, educational component effectiveness, and self-assessed performance improvement received ratings of 4-5 (positive end of the Likert scale) from over 90% of respondents. When asked about simulation's role in technique comprehension, comfort level in technique performance, and likelihood of recommending this workshop to others, more than 75% of participants rated these aspects with a score of 4-5 (positively) on the five-point scale. CONCLUSION: Low-cost simulation, within a multimodal education strategy, is a well-accepted intervention for teaching surgical techniques for PAS.

Advancing Neurosurgical Skills: A Comparative Study of Training Models for Intra-Extracranial Cerebral Bypass.

BACKGROUND: Training in anastomosis is fundamental in neurosurgery due to the precision and dexterity required. Biological models, although realistic, present limitations such as availability, ethical concerns, and the risk of biological contamination. Synthetic models, on the other hand, offer durability and standardized conditions, although they sometimes lack anatomical realism. This study aims to evaluate and compare the efficiency of anastomosis training models in the intra-extracranial cerebral bypass procedure, identifying those characteristics that enhance optimal microsurgical skill development and participant experience. METHODS: A neurosurgery workshop was held from March 2024 to June 2024 with 5 vascular techniques and the participation of 22 surgeons. The models tested were the human placenta, the Wistar rat, the chicken wing artery, the nasogastric feeding tube, and the UpSurgeOn Mycro simulator. The scales used to measure these models were the Main Characteristics Score and the Evaluation Score. These scores allowed us to measure, qualitatively and quantitatively, durability, anatomical similarity, variety of simulation scenarios, risk of biological contamination, ethical considerations and disadvantages with specific infrastructure. RESULTS: The human placenta model, Wistar rat model, and UpSurgeOn model were identified as the most effective for training. The human placenta and Wistar rat models were highly regarded for anatomical realism, while the UpSurgeOn model excelled in durability and advanced simulation scenarios. Ethical and cost implications were also considered. CONCLUSIONS: The study identifies the human placenta and UpSurgeOn models as optimal for training in intra-extracranial bypass procedures, emphasizing the need for diverse and effective training models in neurosurgery.

Perceived Impact of Coronavirus Disease 2019 on Surgical Training: A Brazilian Survey.

INTRODUCTION: Recent studies revealed that coronavirus disease 2019 (COVID-19) negatively impacted residency programs worldwide, particularly procedure-based programs. However, most studies are from high-income countries, with scarce data from low- and middle-income countries. Pandemic effects on surgical training were likely worse in strictly apprenticeship models relying heavily on surgical volume as opposed to competency-based programs. Notably, training programs in Brazil and other low- and middle-income countries follow these strict apprenticeship style frameworks. In this study, we aimed to evaluate the trainees' perceptions of the impact of COVID-19 on their Brazilian surgical programs. METHODS: A cross-sectional study was performed using an anonymous survey in Portuguese, distributed via social media platforms to surgical residents enrolled in Brazilian surgery programs. Data collection took place from August 2021 to May 2022. The survey contained 30 questions on the perception of the impact of COVID-19 on surgical training. RESULTS: One-hundred sixty-two residents from 17 different surgical specialties and all five regions of Brazil responded to the survey. Of 162 residents, 145 (89%) believed the pandemic negatively impacted their surgical training. Furthermore, of 162 residents, 153 (94%) reported that elective surgical volume decreased during the pandemic and 91 (56%) were redeployed to assist with COVID-19 management. As a result, 102 of 162 (63%) residents believed their surgical skills were negatively impacted by COVID-19. Yet, 95 of 162 (59%) residents reported their residency programs did not offer resources to mitigate the pandemic's impact on training. Of 162 residents, 57 (35%) reported they did not feel on track for graduation, with no statistical difference between responses by year of residency (P = 0.083). Additionally, 124 of 162 (77%) residents reported that the pandemic negatively affected their mental health, most commonly related to stress at work, stress about transmitting COVID-19, and loss in surgical training. CONCLUSIONS: Most of the surveyed Brazilian surgical residents felt the COVID-19 pandemic negatively impacted their training. This leads to believe that the detrimental impacts of the pandemic exposed preexisting weaknesses in the Brazilian surgical training model's dependence on a strict apprenticeship model. Our findings suggest a crucial need to redesign surgical education programs to make residency programs more prepared for changes in surgical volume, evolve the apprenticeship model to competency-based approaches, and unify surgical training standards in low- and middle-income countries.

Programa de entrenamiento de parotidectomía en modelo cadavérico perfundido

Introducción: La parotidectomía es una cirugía infrecuente y técnicamente compleja determinada por la dificultad de disección del nervio facial, cuya lesión produce alto grado de morbilidad en los pacientes. Los modelos de simulación animales no logran reproducir las características de la anatomía regional, por lo que se hace necesario explorar otras alternativas para el entrenamiento de estas habilidades. Nuestro objetivo es evaluar un programa de entrenamiento de técnicas de parotidectomía en un modelo cadavé-rico perfundido. Métodos: Se diseñó un programa educacional de Kern de entrenamiento de residentes de Cirugía de Cabeza y Cuello para la realización de parotidectomía total en un modelo cadavérico perfundido. La evaluación se realizó mediante el modelo de Kirkpatrick, en los niveles 1 (reacción), 2A (cambio de actitudes) y 2B (adquisición de conocimientos y habilidades). Resultados: Se elaboró un programa teórico-práctico basado en cátedras y simulación de alta fidelidad. En su mayoría los participantes: recomendarían el curso (Nivel 1); tuvieron mayor motivación para el aprendizaje (Nivel 2) y presentaron mejores indicadores sobre conocimientos, habilidades y percepción de mejoría de sus competencias (Nivel 2B). Conclusión: La utilización de un programa de parotidectomía simulado en un modelo de alta fidelidad basado en modelos cadavéricos humanos perfundidos es una alternativa que mejora la calidad de entrenamiento y es útil y factible para el aprendizaje de técnicas de parotidectomía en residentes de Cirugía de Cabeza y Cuello.

Introduction: The parotidectomy is an infrequent and technically complex surgery due to a difficult dissection that may affect the facial nerve, generating high degree of morbidity in patients. Animal simulation models may not reproduce the human characteristics of cervical anatomy. Therefore, it is necessary to explore other alternatives for training dissection skills. Our objective is to evaluate a parotidectomy's techniques training program in a perfused cadaveric model. Methods: A Kern educational program was designed to train Head and Neck Surgery residents to perform total parotidectomy in a perfused cadaveric model. The evaluation was performed using Kirkpatrick model, at levels 1 (reaction), 2A (change of attitudes) and 2B (acquisition of knowledge and skills). Results: A theoretical-practical program based on lectures and high-fidelity simulation was developed. Most of the participants would recommend the course (Level 1); had greater motivation for learning (Level 2) and showed better indicators of knowledge, skills and perception of improvement in their competencies (Level 2B). Conclusion: The use of a simulated parotidectomy program in a high-fidelity model based on perfused human cadaveric models is an alternative that improves the quality of training and is useful and feasible for learning parotidectomy techniques in residents of Head and Head Surgery.

Surgical training in the Caribbean: The past, the present, and the future.

The six million inhabitants of these diverse English-speaking Caribbean countries are grateful to the University of the West Indies, which has been central in the independent training of surgical specialists in all areas of surgery for the past 50 years. Similar to the per capita income, the quality of surgical care, albeit acceptable, is quite variable throughout the region. Globalization and access to information have revealed that the quality of training and surgical care being delivered can be further improved. Technological advances will perhaps never be on par with higher-income countries, but collaborative ventures with global health partners and institutions can ensure that the people of the region will have appropriately trained surgical doctors and, therefore, the provision of accessible quality care will remain a staple, with even the possibility of income generation. This study reviews the journey of our structured surgical training program delivered in the region and outlines our growth plans.

Objective Evaluation of Laparoscopic Experience Based on Muscle Electromyography and Accelerometry Performing Circular Pattern Cutting Tasks: A Pilot Study.

Purpose.The aim of this work is to present a new physical laparoscopy simulator with an electromyography (EMG)/accelerometry-based muscle activity recording system, EvalLap EMG-ACC, and perform objective evaluation of laparoscopic skills based on the quantification of muscle activity of participants with different levels of laparoscopic experience. Methods. EMG and ACC signals were obtained from 14 participants (6 experts, 8 medical students) performing circular pattern cutting tasks using a laparoscopic box trainer with the Trigno (Delsys Inc, Natick, MA) portable wireless system of 16 wireless sensors. Sensors were placed on the proximal and distal muscles of the upper extremities. Seven evaluation metrics were proposed and compared between skilled and novice surgeons. Results. The proximal and distal arm muscles (trapezius, deltoids, biceps, and forearms) were most active while executing laparoscopic tasks. Laparoscopic experience was associated with differences in EMG amplitude (Aavg), muscle activity (iEMG), hand acceleration (iACH), user movement (iAC), and muscle fatigue. For the cutting task, the deltoid, bicep, forearm EMG amplitude, and user movement significantly differed between experience groups. Conclusion. This pilot study demonstrates that different muscle groups are preferentially activated during laparoscopic tasks depending on the level of surgical experience. Expert surgeons showed less muscle activity compared with novices. EvalLap EMG-ACC represents a promising means to distinguish surgeons with basic cutting skills from those who have not yet developed these skills.

Sustainable surgical resource initiative for Haiti: the SSRI-Haiti project.

In response to the 2010 earthquake and subsequent cholera epidemic, St Luke's Medical Center was established in Port-au-Prince, Haiti. Here, we describe its inception and evolution to include an intensive care unit and two operating rooms, as well as the staffing, training and experiential learning activities, which helped St Luke's become a sustainable surgical resource. We describe a three-phase model for establishing a sustainable surgical centre in Haiti (build facility and acquire equipment; train staff and perform surgeries; provide continued education and expansion including regular specialist trips) and we report a progressive increase in the number and complexity of cases performed by all-Haitian staff from 2012 to 2022. The results are generalised in the context of the 'delay framework' to global health along with a discussion of the application of this three-phase model to resource-limited environments. We conclude with a brief description of the formation of a remote surgical centre in Port-Salut, an unforeseen benefit of local competence and independence. Establishing sustainable and collaborative surgery centres operated by local staff accelerates the ability of resource-limited countries to meet high surgical burdens.

Face, content, and construct validity of the virtual immersive operating room simulator for training laparoscopic procedures.

BACKGROUND: The aim of this work is to present the face, content, and construct validation of the virtual immersive operating room simulator (VIORS) for procedural training of surgeons' laparoscopic psychomotor skills and evaluate the immersive training experience. METHODS: The VIORS simulator consists of an HMD Oculus Rift 2016 with a visor on a 1080 × 1200 pixel OLED screen, two positioning sensors with two adapted controls to simulate laparoscopic instruments, and an acrylic base to simulate the conventional laparoscopic setup. The immersion consists of a 360° virtual operating room environment, based on the EndoSuite at Hospital Infantil de Mexico Federico Gomez, which reproduces a configuration of equipment, instruments, and common distractions in the operating room during a laparoscopic cholecystectomy procedure. Forty-five surgeons, residents, and medicine students participated in this study: 27 novices, 13 intermediates, and 5 experts. They completed a questionnaire on the realism and operating room immersion, as well as their capabilities for laparoscopic procedural training, scored in the 5-point Likert scale. The data of instrument movement were recorded and analyzed using 13 movement analysis parameters (MAPs). The experience during training with VIORS was evaluated through NASA-TLX. RESULTS: The participants were enthusiastic about the immersion and sensation levels of the VIORS simulator, with positive scores on the realism and its capabilities for procedural training using VIORS. The results proved that the VIORS simulator was able to differentiate between surgeons with different skill levels. Statistically significant differences were found in nine MAPs, demonstrating their construct validity for the objective assessment of the procedural laparoscopic performance. At cognitive level, the inversion experience proves a moderate mental workload when the laparoscopic procedure is carried out. CONCLUSION: The VIORS simulator has been successfully presented and validated. The VIORS simulator is a useful and effective device for the training of procedural laparoscopic psychomotor skills.

Ex vivo evaluation of anterior lens capsule staining in horses with three concentrations of gentian violet for surgical training / Avaliação ex vivo da coloração da cápsula anterior da lente de cavalos com três concentrações de violeta genciana para treinamento cirúrgico

Abstract The aim of this study was to evaluate and compare the effectiveness of three concentrations of gentian violet (0.5%, 0.1% and 0.05%) for staining the anterior capsule of the lens in horses. Thirty-six post-mortem equine eyes were collected. The eyes were subdivided into three groups composed of 12 eyes each, according to the concentration of gentian violet used. The effectiveness of staining the anterior capsule of the lens with different concentrations of gentian violet was assessed using an empirical system of evaluation on adequate or inadequate staining of capsular flaps. Based on the evaluation of the examiner, the 0.1% and 0.05% concentrations of gentian violet allowed adequate visualisation of the anterior capsule for continuous curvilinear capsulotomy training, whereas the 0.5% concentration produced strong and inadequate capsular staining. The model developed using gentian violet at concentrations of 0.1% and 0.05% allowed a clear visualisation of the capsular flap, which makes it viable as a model for training the continuous curvilinear capsulotomy step in cataract surgery in horses.

Resumo O objetivo deste estudo foi avaliar e comparar a eficácia de três concentrações de violeta genciana (0,5%, 0,1% e 0,05%) na coloração da cápsula anterior da lente em equinos. Trinta e seis olhos de equinos post-morten foram utilizados. De acordo com a concentração de violeta genciana utilizada, os olhos foram subdivididos em três grupos compostos por 12 olhos cada. A avaliação da eficácia em coloração da cápsula anterior da lente com diferentes concentrações de violeta de genciana foi realizada por meio de um sistema empírico de avaliação da coloração adequada ou inadequada de retalhos capsulares. Com base na avaliação dos examinadores, as concentrações de 0,1% e 0,05% de violeta de genciana permitiram a visualização adequada da cápsula anterior para o treinamento da capsulotomia curvilínea contínua enquanto a concentração de 0,5% produziu uma coloração capsular forte e inadequada. O modelo desenvolvido com violeta genciana, nas concentrações de 0,1% e 0,05%, permitiu a visualização nítida do retalho capsular, o que o torna viável como modelo para treinamento da etapa de capsulotomia curvilínea contínua em cirurgia de catarata em equinos.

Acquisition of endoscopic nasal surgery skills with a lamb's head model

Abstract Objectives: To evaluate the acquisition of surgical skills by otolaryngology residents and established the minimum number of dissections of a lamb's model to be performed before practicing on human patients. Methods: Nineteen second-year otolaryngology residents performed ten dissections each, five on each nasal cavity, always practicing the same three surgical procedures on the lamb model. Each student's training lasted 2-months, and the entire training intervention lasted 4-years, over four generations of residents. All dissections were recorded and were selected at random for examination by two independent otolaryngology surgeons, who were otherwise not involved in the research. Assessment of the 190 dissections used an instrument validated for surgical training of medical residents. Results: To a 1% significance level, statistical analysis revealed increased performance and satisfactory results were observed after the sixth dissection. Furthermore, after the eighth dissection, skill acquisition was relevant and sustained. Conclusion: Training in endoscopic nasal surgery on a lamb's head model improves surgical skills and handling of surgical instruments. Our results showed the relevance of the lamb model for training in otolaryngology surgery, impacting on patient safety. Level of evidence: 2.

Efectos de la pandemia COVID-19 en la formación de residentes de cirugía general de la Argentina / Efects of the COVID-19 pandemic on the training of residents in general surgery in Argentina

RESUMEN Antecedentes: los sistemas de salud del mundo se han visto afectados en su lucha contra el COVID-19, generando efectos negativos tanto en la actividad asistencial como en la formación de los residentes. Suspender cirugías electivas, disminuir la participación de residentes en quirófano y otros cambios estructurales de los hospitales determinó que los residentes de cirugía experimenten un marcado déficit educacional en su formación. Material y métodos: modalidad observacional y transversal. Se realizó una encuesta anónima online de 20 preguntas a residentes de cirugía de la Argentina. Se confeccionó una base de datos para el análisis estadístico. Se valoraron variables categóricas y numéricas. Resultados: se recibieron 100 respuestas de la encuesta en la que se identificó predominio de residentes de instituciones públicas. Se calculó un descenso del 63% en la cantidad de cirugías en las que participaron los residentes durante la pandemia. El 77% usó plataformas virtuales para remediar el impacto en las instancias de formación académica. El 57% de los encuestados cuentan con programas de simulación quirúrgica en su hospital. La mayoría experimentó consecuencias negativas en sus habilidades quirúrgicas y en su formación durante la pandemia, pero se identificaron diferencias entre el grupo que dispone de simulación quirúrgica y el que no. Conclusión: para resolver el déficit educativo que generó la pandemia por COVID-19, y como medida para potenciar el aprendizaje de habilidades quirúrgicas en situaciones normales, este estudio recomendaría contar con programas de simulación quirúrgica y fomentar el uso de plataformas virtuales como herramienta de formación académica.

ABSTRACT Background: Health systems worldwide have been affected in their fight against COVID-19, generating negative effects on both healthcare activity and training of residents. Cancellation of elective surgeries, less participation of residents in the operating room and other structural changes in the hospitals resulted in an educational gap in the training of residents in surgery. Material and methods: We conducted an observational and cross-sectional study. A 20-question online survey was conducted among residents in surgery from Argentina. A database was created for statistical analysis of categorical and continuous variables. Results: The survey was responded by 100 residents in surgery; most of them belonged to public institutions. There was a 63% decrease in the number of surgeries in which the residents participated during the pandemic. Seventy-seven percent used virtual platforms to mitigate the impact on academic training and 57% count with surgical simulation programs in their hospitals. Most of them experienced negative consequences on their surgical skills and training during the pandemic, but there were differences identified between the group with and without surgical simulation programs. Conclusion: The availability of surgical simulation programs and the use of virtual platforms as an academic training tool could solve the educational gap generated by the COVID-19 pandemic and enhance the learning of surgical skills under normal conditions.

Impacto de COVID-19 en la formación de los alumnos de la Carrera de Posgrado de Cirugía General en un Hospital COVID / Impact of COVID-19 pandemic on trainees' education in the Postgraduate Program in General Surgery in a COVID-19-dedicated hospital

RESUMEN Antecedentes: El Hospital Eva Perón de la ciudad de Granadero Baigorria se destinó a la atención casi exclusiva de pacientes afectados por COVID-19, lo que implicó modificar las actividades que allí se desarrollan. Allí se realizan actividades correspondientes al Posgrado de Cirugía General de la Facultad de Ciencias Médicas de la Universidad Nacional de Rosario. El objetivo es describir los cambios y el funcionamiento del posgrado de Cirugía General en el HEEP durante la pandemia por COVID-19, y el impacto que esta tuvo sobre la formación de los alumnos. Material y métodos: se realizó un trabajo descriptivo, comparativo. Período 20 de marzo de 2020 al 30 de septiembre de 2020 y el mismo período del año 2019. Variables analizadas: número de cirugías, horas en el hospital, número de guardias, actividad en consultorio y pacientes evaluados, seminarios teóricos, cursado de la carrera de posgrado. Resultados: las cirugías totales se redujeron un 74,88%. Las cirugías programadas se redujeron un 85,59%. Las cirugías de guardia se redujeron un 63,19%. Las guardias de R1, R2 y R3 se vieron disminuidas, al contrario de R4. Las horas en el hospital se redujeron en todos los alumnos. Los pacientes ingresados disminuyeron el 74,06%. La atención en todos los consultorios se vio reducida. Las actividades académicas se incrementaron, de forma no presencial. Conclusión: la pandemia por COVID-19 afectó significativamente la formación de los alumnos del posgrado de Cirugía General del HEEP. Se recurrió a métodos no tradicionales de enseñanza para realizar actualizaciones y discutir trabajos científicos.

ABSTRACT Background: Hospital Eva Perón in the city of Granadero Baigorria was almost exclusively dedicated to the care of COVID-19 patients; thereby, it was necessary to modify its activities, as those of the postgraduate program in General Surgery of Facultad de Ciencias Médicas, Universidad Nacional de Rosario, which take place in this hospital. The aim of this study is to describe the changes made and the performance of the postgraduate program in general surgery at HEEP during the COVID-19 pandemic, and its impact on trainees' education. Material and methods: We conducted a descriptive study comparing the period between March 20, 2020, and September 30, 2020, with the same period in 2019. The variables analyzed included number of surgeries, hours spent in hospital, number of in-house call shifts, activities in the outpatient clinic and evaluation of patients, theoretical seminars, attendance to classes of the postgraduate programs and research work. Results: The total number of surgeries decreased by 74.88%, scheduled surgeries by 85.59% and emergency surgeries by 63.19%. The numbers of in-house call shifts of PGY-1, PGY-2 and PGY-3 residents decreased but not those of PGY-4 residents. The hours spent in hospital decreased in all the trainees. The number of patients hospitalized decreased by 74.06% and there was a reduction in all the activities of the outpatient clinics. The academic activities, performed non-face-to-face, increased. Conclusion: The COVID-19 pandemic significantly affected trainees' education in the postgraduate program in General Surgery at HEEP. Non-traditional teaching methods were used for updating and discussing scientific papers.

Role of Female Research at the Asociacion Mexicana de Cirugia General Annual Meeting: A Retrospective Analysis From 2013 to 2019.

Background: Academic surgery has been a traditionally male-dominated field. Female contribution remains challenging. In Mexico, there is no published evidence regarding gender disparity in academic surgery. We aimed to analyze the female role in clinical research submitted to the Asociación Mexicana de Cirugía General (AMCG). Methods: Retrospective study evaluating abstracts submitted to AMCG annual meetings from 2013 to 2019. Categorical variables were compared using χ2 test. Univariate logistic regression was performed to calculate odds ratios (OR) followed by a log-binomial logistic regression model to obtain the adjusted relative risk (aRR) for acceptance as an oral presentation. Results: Overall, 7,439 abstracts were analyzed of which 24.2% were submitted by females. Female-submitted abstracts increased from 22.5% to 25.3% during 2013-2019 (p = 0.15). The proportion of 47 abstracts submitted by females was higher in the resident group (27.7% vs. 18.8%; p < 0.001). The percentage of females' abstracts selected for oral presentation was less than the percentage of males' 49 abstracts selected for presentation (9% vs. 11.5%; p = 0.002). Females' abstracts submitted have a 50 23.5% decreased chance of being selected for oral presentation (OR = 0.765, CI 95%, 0.639-0.917, 51 p = 0.003). However, after adjusting for research type and trainee status, the gender of the oral 52 presenting author showed no association (aRR = 0.95, CI 95%, 0.8-1.1, p = 0.56). Conclusion: In Mexico, the female role in academic surgery is still limited. These results should 55 encourage professors and program directors to identify and address factors contributing to gender 56 disparities.

Acquisition of endoscopic nasal surgery skills with a lamb's head model.

OBJECTIVES: To evaluate the acquisition of surgical skills by otolaryngology residents and established the minimum number of dissections of a lamb's model to be performed before practicing on human patients. METHODS: Nineteen second-year otolaryngology residents performed ten dissections each, five on each nasal cavity, always practicing the same three surgical procedures on the lamb model. Each student's training lasted 2-months, and the entire training intervention lasted 4-years, over four generations of residents. All dissections were recorded and were selected at random for examination by two independent otolaryngology surgeons, who were otherwise not involved in the research. Assessment of the 190 dissections used an instrument validated for surgical training of medical residents. RESULTS: To a 1% significance level, statistical analysis revealed increased performance and satisfactory results were observed after the sixth dissection. Furthermore, after the eighth dissection, skill acquisition was relevant and sustained. CONCLUSION: Training in endoscopic nasal surgery on a lamb's head model improves surgical skills and handling of surgical instruments. Our results showed the relevance of the lamb model for training in otolaryngology surgery, impacting on patient safety.

A new approach for the acquisition of trauma surgical skills: an OSCE type of simulation training program.

BACKGROUND: Worldwide, trauma-related deaths are one of the main causes of mortality. Appropriate surgical treatment is crucial to prevent mortality, however, in the past decade, general surgery residents' exposure to trauma cases has decreased, particularly since the COVID-19 pandemic. In this context, accessible simulation-based training scenarios are essential. METHODS: A low-cost, previously tested OSCE scenario for the evaluation of surgical skills in trauma was implemented as part of a short training boot camp for residents and recently graduated surgeons. The following stations were included bowel anastomosis, vascular anastomosis, penetrating lung injury, penetrating cardiac injury, and gastric perforation (laparoscopic suturing). A total of 75 participants from 15 different programs were recruited. Each station was videotaped in high definition and assessed in a remote and asynchronous manner. The level of competency was assessed through global and specific rating scales alongside procedural times. Self-confidence to perform the procedure as the leading surgeon was evaluated before and after training. RESULTS: Statistically significant differences were found in pre-training scores between groups for all stations. The lowest scores were obtained in the cardiac and lung injury stations. After training, participants significantly increased their level of competence in both grading systems. Procedural times for the pulmonary tractotomy, bowel anastomosis, and vascular anastomosis stations increased after training. A significant improvement in self-confidence was shown in all stations. CONCLUSION: An OSCE scenario for training surgical skills in trauma was effective in improving proficiency level and self-confidence. Low pre-training scores and level of confidence in the cardiac and lung injury stations represent a deficit in residency programs that should be addressed. The incorporation of simulation-based teaching tools at early stages in residency would be beneficial when future surgeons face extremely severe trauma scenarios.

Supervisors' transformational leadership style and residents' job crafting in surgical training: the residents' views.

Objectives: This study aims to explore the effects of three supervisors' leadership styles (transformational, transactional, and laissez-faire) on residents' job crafting. Methods: Sequential explanatory mixed-methods. First, a purposive sample of residents rated the leadership style of their supervisors and their own job crafting on the Multifactor Leadership Questionnaire and the Dutch Job Crafting Scale. The effects were tested through linear mixed effects regression analysis. Thereafter we conducted semi-structured interviews with residents and conducted a thematic analysis. Results: A total of 116 residents participated. A transformational style had a positive effect on residents' job crafting (b = .19, t(112) =3.76, p=. 009), whereas the transactional and laissez-faire styles did not. This could be explained by the fact that residents felt a positive influence of the supervisors with such style on the atmosphere for training, on the job resources available to them, and on their modelling function for how to handle the demands of the environment. Conclusions: A transformational style of the supervisor has a positive effect on residents' job crafting. Future research should explore the supervisors' perspective, as well as the effectiveness of leadership training for supervisors with a focus on resident outcomes, such as job crafting.

Introducing the Dilation and Evacuation Technique in Brazil: Lessons Learned From an International Partnership to Expand Options for Brazilian Women and Girls.

Dilation and evacuation (D&E) is the recommended surgical procedure for uterine evacuation in the second trimester. Despite its established safety record, it is not routinely available in most countries around the world. In this paper, we describe the multi-phase capacity-building project we undertook to introduce D&E in Brazil. First, we invited a highly motivated obstetrician-gynecologist and abortion provider to complete an observership at an established D&E site in the United States. We then organized a month-long clinical training for two experienced gynecologists in Brazil, followed by ongoing remote mentorship. Almost all patients we approached during the training opted for D&E, and all expressed satisfaction with their experience. Despite the restrictive legal setting and prevailing abortion stigma in Brazil, our training was well-received, and we did not experience any overt resistance from hospital staff. We learned that obtaining institutional support is essential; and that presenting scientific evidence during dedicated didactic times was an important strategy to obtain buy-in from other local healthcare providers. An important challenge we encountered was low case volume given the restrictive legal setting. We addressed this by partnering with nearby hospitals and non-profit organizations for patient referrals. We also rescheduled, adapted and optimized this project for implementation in the midst of the COVID-19 pandemic. Despite the challenges we faced, this project led to the successful introduction of D&E up to 16-18 weeks at two sites in Brazil. In the future, we plan additional training to increase capacity for D&E at more advanced gestational ages.

Computer vision coaching microsurgical laboratory training: PRIME (Proficiency Index in Microsurgical Education) proof of concept.

Computer vision (CV) feedback could be aimed as a constant tutor to guide ones proficiency during microsurgical practice in controlled environments. Five neurosurgeons with different levels of microsurgical expertise performed simulated vessel dissection and micro-suture in an ex vivo model for posterior computer analysis of recorded videos. A computer program called PRIME (Proficiency Index of Microsurgical Education) used in this research recognized color-labeled surgical instruments, from downloading videos into a platform, with a range of motion greater than 3 mm, for objective evaluation of number of right and left hand movements. A proficiency index of 0 to 1 was pre-established in order to evaluate continuous training improvement. PRIME computer program captured all hand movements executed by participants, except for small tremors or inconsistencies that have a range of motion inferior to 3 mm. Number of left and right hand movements were graphically expressed in order to guide more objective and efficacious training for each trainee, without requiring body sensors and cameras around the operating table. Participants with previous microsurgical experience showed improvement from 0.2 to 0.6 (p < 0.05), while novices had no improvement. Proficiency index set by CV was suggested, in a self-challenge and self-coaching manner. PRIME would offer the capability of constant laboratory microsurgical practice feedback under CV guidance, opening a new window for oriented training without a tutor or specific apparatus regarding all levels of microsurgical proficiency. Prospective, large data study is needed to confirm this hypothesis.

Sheep as a large animal model for cochlear implantation.

INTRODUCTION: In surgical training, large animal models are more suitable as their anatomy is more similar to humans. In otology, there have been relatively few studies about large animal models for surgical training. OBJECTIVE: In this study, we aimed to do a neuroradiologic evaluation and surgical insertion of a cochlear implant electrode array on a sheep head model. METHODS: Twenty cadaveric sheep heads were studied. A computed tomography scan and neuroradiologic evaluation was performed on each head, obtaining measurements of the inner ear for each sheep. Sheep measurements were compared to those from temporal bone computed tomography scans from 20 female humans. Surgical procedures were first trained with 13 of the sheep temporal bones, after which cochlear implantation was performed on the remaining 7 temporal bones. The position of the inserted electrode array insertion was confirmed by computed tomography scan after the procedure. RESULTS: Neuroradiologic evaluation showed that, relative to the 20 female humans, the mean ratio for sheep was 0.60 for volume of cochlea, 0.70 for height of cochlea, 0.73 for length of cochlea; ratios for other metrics were >0.80. For the surgical training, the round window was found in all 20 sheep temporal bones. Computed tomography scans confirmed that electrode insertions were fully complete; the mean value of electrode array insertion was 18.3 mm. CONCLUSION: The neuroradiologic and surgical training data suggest that the sheep is a realistic animal model to train cochlear implant surgery and collection of perilymph samples, but less so for surgical training of mastoidectomy due to pneumatization of the mastoid.

Sheep as a large animal model for cochlear implantation / Uso de ovelhas como um modelo animal de grande porte para implante coclear

Abstract Introduction In surgical training, large animal models are more suitable as their anatomy is more similar to humans. In otology, there have been relatively few studies about large animal models for surgical training. Objective In this study, we aimed to do a neuroradiologic evaluation and surgical insertion of a cochlear implant electrode array on a sheep head model. Methods Twenty cadaveric sheep heads were studied. A computed tomography scan and neuroradiologic evaluation was performed on each head, obtaining measurements of the inner ear for each sheep. Sheep measurements were compared to those from temporal bone computed tomography scans from 20 female humans. Surgical procedures were first trained with 13 of the sheep temporal bones, after which cochlear implantation was performed on the remaining 7 temporal bones. The position of the inserted electrode array insertion was confirmed by computed tomography scan after the procedure. Results Neuroradiologic evaluation showed that, relative to the 20 female humans, the mean ratio for sheep was 0.60 for volume of cochlea, 0.70 for height of cochlea, 0.73 for length of cochlea; ratios for other metrics were >0.80. For the surgical training, the round window was found in all 20 sheep temporal bones. Computed tomography scans confirmed that electrode insertions were fully complete; the mean value of electrode array insertion was 18.3 mm. Conclusion The neuroradiologic and surgical training data suggest that the sheep is a realistic animal model to train cochlear implant surgery and collection of perilymph samples, but less so for surgical training of mastoidectomy due to pneumatization of the mastoid.

Resumo Introdução No treinamento cirúrgico, os modelos animais de grande porte são mais adequados, pois sua anatomia é mais semelhante à humana. Em otologia, existem relativamente poucos estudos com modelo animal de grande porte para treinamento cirúrgico. Objetivo Fazer a avaliação neurorradiológica e a inserção cirúrgica de um eletrodo de implante coclear em um modelo de ovelha. Método Vinte cabeças de cadáveres de ovelhas foram estudadas. Foram feitas tomografia computadorizada e avaliação neurorradiológica de cada cabeça, obtiveram‐se medidas da orelha interna de cada ovelha. As medidas das ovelhas foram comparadas às de tomografias computadorizadas do osso temporal de 20 mulheres. Os procedimentos cirúrgicos foram inicialmente treinados com 13 dos ossos temporais de ovelhas, após o qual o implante coclear foi feito nos 7 ossos temporais restantes. A posição de inserção do arranjo de eletrodos foi confirmada por tomografia computadorizada após o procedimento. Resultados A avaliação neurorradiológica mostrou que, em comparação às 20 mulheres, a proporção média para as ovelhas foi de 0,60 para o volume da cóclea, 0,70 para a altura da cóclea, 0,73 para o comprimento da cóclea; as proporções para as outras medidas foram > 0,80. Em relação ao treinamento cirúrgico, a janela redonda foi encontrada em todos os 20 ossos temporais de ovelhas. A tomografia computadorizada confirmou que as inserções dos eletrodos foram totalmente completas; o valor médio da inserção do arranjo de eletrodos foi de 18,3 mm. Conclusão Os dados do treinamento neurorradiológico e cirúrgico sugerem que a ovelha é um modelo animal realista para o treinamento da cirurgia de implante coclear e coleta de amostras da perilinfa, mas não tão realista para o treinamento cirúrgico de mastoidectomia devido à pneumatização da mastoide.