Performance of artificial intelligence in bariatric surgery: comparative analysis of ChatGPT-4, Bing, and Bard in the American Society for Metabolic and Bariatric Surgery textbook of bariatric surgery questions.

BACKGROUND: The American Society for Metabolic and Bariatric Surgery (ASMBS) textbook serves as a comprehensive resource for bariatric surgery, covering recent advancements and clinical questions. Testing artificial intelligence (AI) engines using this authoritative source ensures accurate and up-to-date information and provides insight in its potential implications for surgical education and training. OBJECTIVES: To determine the quality and to compare different large language models' (LLMs) ability to respond to textbook questions relating to bariatric surgery. SETTING: Remote. METHODS: Prompts to be entered into the LLMs were multiple-choice questions found in "The ASMBS Textbook of Bariatric Surgery, second Edition. The prompts were queried into 3 LLMs: OpenAI's ChatGPT-4, Microsoft's Bing, and Google's Bard. The generated responses were assessed based on overall accuracy, the number of correct answers according to subject matter, and the number of correct answers based on question type. Statistical analysis was performed to determine the number of responses per LLMs per category that were correct. RESULTS: Two hundred questions were used to query the AI models. There was an overall significant difference in the accuracy of answers, with an accuracy of 83.0% for ChatGPT-4, followed by Bard (76.0%) and Bing (65.0%). Subgroup analysis revealed a significant difference between the models' performance in question categories, with ChatGPT-4's demonstrating the highest proportion of correct answers in questions related to treatment and surgical procedures (83.1%) and complications (91.7%). There was also a significant difference between the performance in different question types, with ChatGPT-4 showing superior performance in inclusionary questions. Bard and Bing were unable to answer certain questions whereas ChatGPT-4 left no questions unanswered. CONCLUSIONS: LLMs, particularly ChatGPT-4, demonstrated promising accuracy when answering clinical questions related to bariatric surgery. Continued AI advancements and research is required to elucidate the potential applications of LLMs in training and education.

The SAGES MASTERS program bariatric surgery pathway selects 10 seminal publications on adjustable gastric banding.

BACKGROUND: Bariatric surgery is one of the clinical pathways of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) Masters Program, and laparoscopic adjustable gastric banding (LAGB) is one of the three anchoring bariatric procedures. To improve surgeon lifelong learning, the Masters Program seeks to identify sentinel articles of each of the 3 bariatric anchoring procedures. In this article, we present the top 10 articles on LAGB. METHODS: A systematic literature search of papers on LAGB was completed, and publications with the most citations and citation index were selected and shared with SAGES Metabolic and Bariatric Surgery Committee members for review. The individual committee members then ranked these papers, and the top 10 papers were chosen based on the composite ranking. RESULTS: The top 10 sentinel publications on LAGB contributed substantially to the body of literature related to the procedure, whether for surgical technique, novel information, or outcome analysis. A summary of each paper including expert appraisal and commentary is presented here. CONCLUSION: These seminal articles have had significant contribution to our understanding and appreciation of the LAGB procedure. Bariatric surgeons should use this resource to enhance their continual education and acquisition of specialized skills.

Trends in bariatric surgery training: bariatric operations performed by Fellowship Council trainees from 2012 to 2019.

BACKGROUND: The American Society for Metabolic and Bariatric Surgery (ASMBS) Fellowship Certificate was created to ensure satisfactory training and requires a minimum number of anastomotic cases. With laparoscopic sleeve gastrectomy becoming the most common bariatric procedure in the United States, this may present a challenge for fellows to obtain adequate numbers for ASMBS certification. OBJECTIVES: To investigate bariatric fellowship trends from 2012 to 2019, the types, numbers, and approaches of surgical procedures performed by fellows were examined. SETTING: Academic training centers in the United States. METHODS: Data were obtained from Fellowship Council records of all cases performed by fellows in ASMBS-accredited bariatric surgery training programs between 2012 and 2019. A retrospective analysis using standard descriptive statistical methods was performed to investigate trends in total case volume and cases per fellow for common bariatric procedures. RESULTS: From 2012 to 2019, sleeve gastrectomy cases performed by all Fellowship Council fellows nearly doubled from 6,514 to 12,398, compared with a slight increase for gastric bypass, from 8,486 to 9,204. Looking specifically at bariatric fellowships, the mean number of gastric bypass cases per fellow dropped over time, from 91.1 cases (SD = 46.8) in 2012-2013 to 52.6 (SD = 62.1) in 2018-2019. Mean sleeve gastrectomy cases per fellow increased from 54.7 (SD = 31.5) in 2012-2013 to a peak of 98.6 (SD = 64.3) in 2015-2016. Robotic gastric bypasses also increased from 4% of all cases performed in 2012-2013 to 13.3% in 2018-2019. CONCLUSIONS: Bariatric fellowship training has seen a decrease in gastric bypasses, an increase in sleeve gastrectomies, and an increase in robotic surgery completed by each fellow from 2012 to 2019.

Perception and Practice of Bariatric Surgery and Reproductive Health in Women: a Cross-sectional Study of Chinese Bariatric Surgeons.

BACKGROUND AND PURPOSE: Western studies have explored bariatric surgeons concerning their views on bariatric surgery (BS) and reproductive health, but Asian data were lacking. The aim of this study was to explore the perception and practice of bariatric surgeons on the reproductive health of female patients who underwent BS in China to better guide clinical practice and improve clinical outcomes. METHOD: An online questionnaire of 31 questions developed by bariatric surgeons was collected by sending to one online communication group (WeChat group) whose members are Chinese bariatric surgeons. RESULT: A total of 87 bariatric surgeons from mainland China were surveyed. Almost all (97.7%, 85/87) surgeons considered the reproductive health conversation for women who underwent BS to be important or very important. Only 1/4 of surgeons routinely discuss reproductive health-related issues with patients, and only 56% of doctors always ask patients for postoperative contraception. Less than 20% of bariatric surgeons have full knowledge of postoperative contraception, and nearly 40% of them believe that gynecologists should be responsible for providing contraception. More than 35% of bariatric surgeons have never been involved in the co-management of pregnancy in patients with a history of BS. CONCLUSION: Although most bariatric surgeons are aware of the importance of female reproductive health, there is a large gap in the perception and clinical practice of bariatric surgeons in terms of reproductive health. It is necessary to further strengthen the education of bariatric surgeons and enhance multidisciplinary cooperation with gynecology, obstetrics, and other disciplines to bring better clinical outcomes.

Laparoscopic Small Bowel Length Measurement in Bariatric Surgery Using a Hand-Over-Hand Technique with Marked Graspers: an Ex Vivo Experiment.

INTRODUCTION: Tailoring limb length in bariatric surgery is a subject of many studies. To acquire the optimal limb length, accurate measurement of the small bowel length is essential. OBJECTIVE: To assess the intra- and inter-individual variability of laparoscopic bowel length measurement using a hand-over-hand technique with marked graspers. METHOD: Four bariatric surgeons and four surgical residents performed measurements on cadaver porcine intestine in a laparoscopic box using marked graspers. Each participant performed 10 times a measurement of three different lengths: 150, 180, and 210 cm. Acceptable percentage deviation from the goal lengths was defined as less than 10%, while unacceptable deviations were defined as more than 15%. RESULTS: The bariatric surgeons measured the 150-, 180-, and 210-cm tasks with 4% (CI 0.4, 9), - 6% (CI - 11, - 0.8), and 1% (CI - 4, 6) deviation, respectively. In total, the bariatric surgeons estimated 58 out of 119 times (49%) between the margins of 10% deviation and 36 times (30%) outside the 15% margin. Considerable inter-individual differences were found between the surgeons. The surgical residents underestimated the tasks with 12% (CI - 18, - 6), 16% (CI - 19, - 13), and 18% (CI - 22, - 13), respectively. CONCLUSION: Bariatric surgeons estimated bowel length with on average less than 10% deviation. However, this still resulted in 30% of the measurements with more than 15% deviation. There were considerable inter-individual differences between the surgeons and residents structurally underestimated the bowel length. Ascertainment of measurement accuracy and adequate training is essential for bariatric procedures in which limb length is of importance.

Online informational bariatric seminars: increasing access to bariatric surgery or widening a divide?

BACKGROUND: Historically our institution has required prospective bariatric patients attend an in-person introductory seminar prior to their first clinic visit. Utilization of the internet has increased dramatically over the last 10 years and in 2016, we added an online seminar. With the emergence of COVID-19 and new rules regarding social distancing, we are currently relying exclusively on web-based orientation. Research suggests there are racial and socioeconomic disparities in the utilization of internet health resources in the general population. To our knowledge this has not been studied in regard to the bariatric population. METHODS: A retrospective chart review was performed on patients who attended online (OS) and in-person seminars (IPS). Our primary endpoint was to compare the percentage of patients who underwent surgery. Secondary outcomes included differences in demographic and clinical characteristics between the patients who attended the OS versus the IPS. RESULTS: Of the 1152 patients who attended a bariatric orientation, 71.2% scheduled an office visit. The IPS patients had a higher rate of office visits and shorter time between orientation and first visit. Of patients eligible for surgery, there was a higher percentage of Caucasians in the OS group while the IPS group had higher rates of Hispanic and African Americans. Patients from the OS group had higher rates of marriage and employment, and lower rates of medical co-morbidities. When controlling for age, sex, race/ethnicity, marital status, employment status and medical co-morbidities, there was no significant impact of type of orientation on progression to surgery. CONCLUSION: We found that there was no difference in progression to surgery between the two orientation groups. Importantly, however, we detected marked demographic and clinical differences between the two patient populations. There is an urgent need to address these disparities as we are now heavily relying on patient outreach and education via the internet.

Tecnologia instrucional para diagnóstico e terapêutica de enfermagem após cirurgia bariátrica / Tecnología instruccional para el diagnóstico y la terapéutica de enfermería después de una cirugía bariátrica / Instructional technology for nursing diagnosis and therapy after bariatric surgery

Resumo Objetivo Avaliar uma tecnologia instrucional de estudos de caso para enfermeiros que atuam na assistência ao paciente em pós-operatório de cirurgia bariátrica. Métodos Pesquisa aplicada de desenvolvimento tecnológico realizada em três etapas: revisão da literatura; elaboração e avaliação do material instrucional por 20 enfermeiros especialistas. Resultados O material instrucional é composto de 10 estudos de caso associados a protocolos com diagnósticos e intervenções de enfermagem. O material foi avaliado como adequado para a maioria dos critérios de suficiência de indicadores clínicos para a elaboração do diagnóstico de enfermagem; frequência com que os diagnósticos apresentados no material instrucional eram ou poderiam ser usados no cuidado pós-operatório do paciente bariátrico; na clareza e representatividade do conteúdo dos estudos de caso. Conclusão Os casos foram avaliados como um recurso tecnológico instrucional relevante para a capacitação de enfermeiros com potencial para o processo de julgamento clínico em pós-operatório de cirurgia bariátrica.

Resumen Objetivo Evaluar una tecnología instruccional de estudios de caso para enfermeros que actúan en la asistencia al paciente en post operatorio de cirugía bariátrica. Métodos Investigación aplicada de desarrollo tecnológico realizada en tres etapas: revisión de la literatura; elaboración y evaluación del material instruccional por 20 enfermeros especialistas. Resultados El material instruccional está compuesto por 10 estudios de caso asociados a protocolos con diagnósticos e intervenciones de enfermería. El material fue evaluado como adecuado para la mayoría de los criterios de suficiencia de indicadores clínicos para la elaboración del diagnóstico de enfermería; frecuencia con la que los diagnósticos presentados en el material instruccional eran o podrían ser usados en el cuidado post operatorio del paciente bariátrico; en la claridad y representatividad del contenido de los estudios de caso. Conclusión Los casos fueron evaluados como un recurso tecnológico instruccional relevante para la capacitación de enfermeros con potencial para el proceso de juzgamiento clínico en el post operatorio de cirugía bariátrica.

Abstract Objective To assess a case study instructional technology for nurses who work in patient care in the postoperative period of bariatric surgery. Methods This is applied research on technological development carried out in a literature review, preparation and instructional material assessment by 20 specialist nurses. Results The instructional material consists of 10 case studies associated with protocols with nursing diagnoses and interventions. The material was assessed as adequate for most criteria of sufficiency of clinical indicators for nursing diagnosis elaboration; frequency with which the diagnoses presented in the instructional material were or could be used in the postoperative care of bariatric patients; clarity and representativeness of the content of the case studies. Conclusion The cases were assessed as an instructional technological resource relevant to the training of nurses with potential for the clinical judgment process in the postoperative period of bariatric surgery.

Outcomes in Laparoscopic Roux-en-Y Gastric Bypass and Implications for Surgical Resident Education.

OBJECTIVES: Some surgery residents feel inadequately prepared to perform advanced operations, partly due to losing operative opportunities to fellows. In turn, they are prompted to pursue fellowships. Allowing residents the opportunity to participate in advanced procedures and complex cases may alleviate this cycle, if their participation is safe. This study examined the effects of resident participation in laparoscopic Roux-en-Y gastric bypass procedures (LRYGBs). DESIGN: Our MBSAQIP database was used to identify LRYGBs performed at our institution between 2015 and 2018. Operative notes were reviewed to determine training level of the assistant. Patient comorbidities and outcomes (duration of surgery, length of stay, post-operative complications, readmissions, and reoperations) were stratified by assistant level of training for comparison. SETTING: Urban tertiary care hospital. PARTICIPANTS: Trainees and attending surgeons acting as assistants during LRYGBs. RESULTS: Among 987 total cases, the assistants for the procedures were chief residents (n = 549, 56%), fourth-year residents (n = 258, 26%), attending surgeons (n = 143, 14%), and third-year residents (n = 37, 4%). Attending surgeons assisted more often when patients had a BMI ≥ 45 (38% attendings vs. 25% residents, p = 0.007), ≥ 2 comorbidities (54% vs. 40%, p = 0.007), or had a history of prior bariatric surgery (22% vs. 3%, p < 0.0001).Post-operative complication rate was low (4%) and did not differ significantly between all training levels (p = 0.86). Average length of stay, readmission rates, and reoperation rates were not significantly different across training levels (p = 0.75, p = 0.072, and p = 0.91 respectively). CONCLUSION: Complication rates, hospital length of stay, readmission rates, and reoperation rates were equivalent for patients regardless of the level of training of the assistant for LRYGBs. Involving residents in complex bariatric procedures such as LRYGB is a safe model of education that does not compromise patient safety or hospital outcomes. Involvement in advanced cases allows general surgery residents to more confidently move toward independent practice.

Simulation for Foregut and Bariatric Surgery: Current Status and Future Directions.

Simulation offers the opportunity to practice in a safe, controlled, and standardized environment. Surgical simulation, in particular, is very attractive because it avoids learning and practicing surgical skills in the operating room. Many simulators are currently available such as box-lap trainers, virtual-reality platforms, cadavers, live animals, animal-based tissue blocks, and synthetic/artificial models. Endoscopic interventions can be practiced with high-fidelity virtual simulators. Box-lap trainers help practicing basic laparoscopic skills. Cadavers and live animals offer realism to train entire foregut and bariatric procedures. However, limited availability and high expenses often restrict their use. Ex vivo simulators with animal tissue blocks have been recently developed and appear to be a realistic and cost-effective alternative. Three-dimensional printing and real-time navigation systems have also emerged as promising training tools. Overall, further efforts are needed to develop a formal simulation curriculum with validated simulators for foregut and bariatric surgery.

Association of a Statewide Surgical Coaching Program With Clinical Outcomes and Surgeon Perceptions.

OBJECTIVE: To assess risk-adjusted outcomes and participant perceptions following a statewide coaching program for bariatric surgeons. SUMMARY OF BACKGROUND DATA: Coaching has emerged as a new approach for improving individual surgeon performance, but lacks evidence linking to clinical outcomes. METHODS: This program took place between October 2015 and February 2018 in the Michigan Bariatric Surgery Collaborative. Surgeons were categorized as coach, participant, or nonparticipant for an interrupted time series analysis. Multilevel logistic regression models included patient characteristics, time trends, and number of sessions. Risk-adjusted overall and surgical complication rates are reported, as are within-group relative risk ratios and 95% confidence intervals. We also compared operative times and report risk differences and 95% confidence intervals. Iterative thematic analysis of semi-structured interviews examined participant and coach perceptions of the program. RESULTS: The coaching program was viewed favorably by most surgeons and many participants described numerous technical and nontechnical practice changes. The program was not associated with significant change in risk-adjusted complications with relative risks for coaches, participants, and nonparticipants of 0.99 (0.62-1.37), 0.91 (0.64-1.17), and 1.15 (0.83-1.47), respectively. Operative times did improve for participants, but not coaches or nonparticipants, with risk differences of -14.0 (-22.3, -5.7), -1.0 (-4.5, 2.4), and -2.6 (-6.9, 1.7). Future coaching programmatic design should consider dose-complexity matching, hierarchical leveling, and optimizing video review. CONCLUSIONS: This statewide surgical coaching program was perceived as valuable and surgeons reported numerous practice changes. Operative times improved, but there was no significant improvement in risk-adjusted outcomes.

Trends and progress of bariatric and metabolic surgery in India.

Bariatric and metabolic surgery are being performed in India for 2 decades. Aim of this paper is to evaluate the changing clinical trends over the last 5 years and to present the other aspects helmed by Obesity and Metabolic Surgery Society of India (OSSI) to aid the growth of research, education, data management and registry, quality control, insurance-related issues and policy change. OSSI conducts an annual survey to collect data pertaining to numbers of surgical procedures. With the approval of the executive committee, data collected from 2014 to 2018 were retrieved and analysed. 20,242 surgical procedures were performed in 2018 which is an 86.7% increase from 2014. Laparoscopic sleeve gastrectomy continued to remain the most popular procedure, it's percent share saw a steady decline from 68 to 48%. One anastomosis gastric bypass showed an unprecedented growth from 14 to 34%. Numbers of laparoscopic Roux en y gastric bypass remained constant at 15-16%. OSSI has also initiated a COE program along with training fellowships and focus on registry and inclusion in insurance coverage. National trends over the past 5 years in bariatric surgery have shown emergence of newer procedures like OAGB, although LSG continues to be the most popular procedure performed These trends give an insight on how the field is evolving and the implications for any distinctive requirements unique to this region These will lay out important directives for not only ensuring good treatment outcomes but also increasing awareness about the disease on the whole.

[Start to collaborate with partner patients†: an evidence?] / Entrer en collaboration avec des patients partenaires†: une évidence†?

The societal, political and institutional context is today favorable for the establishment of a partnership between patient and healthgivers. Despite the tangible benefits, the perception of partners ambivalent attitudes reinforces the importance of the construction for this collaboration. This article describes this collaborative approach born out of the transformation of a bariatric surgery preparation educational program. In this context, the implementation strategy is the founding stage to explore the needs of partners. This highlights the need to secure the healthgivers regarding power issues, as well as to question the skills required for patient partners. The definition of the partnership model by the partners provides answers.

Le contexte sociétal, politique et institutionnel est aujourd'hui favorable à la mise en place d'un partenariat entre patients et soignants. Malgré des bénéfices tangibles, la perception d'une ambivalence des partenaires renforce l'importance de la construction de cette collaboration. Cet article décrit cette démarche collaborative, née dans le contexte de la transformation d'un programme éducatif de préparation à la chirurgie bariatrique. Dans la stratégie d'implémentation, l'exploration contextuelle des besoins des partenaires constitue l'étape fondatrice. Elle met en lumière un besoin de sécurisation des soignants quant à des enjeux de pouvoir, et questionne sur les compétences requises des patients partenaires. La définition du modèle de partenariat par les partenaires apporte des réponses.

Specific Health Knowledge and Health Literacy of Patients before and after Bariatric Surgery: A Cross-Sectional Study.

BACKGROUND: It is an important condition for adequate weight loss and prevention of adverse events that bariatric surgery (BS) candidates possess good specific health knowledge. There is a paucity of standardized instruments to evaluate the specific health knowledge of patients before and after BS. Therefore, we developed a 32-item multiple-choice test covering the main aspects of life which are important after BS, and investigated the correlation of specific health knowledge with health literacy, level of depression and anxiety, percentage of excess weight loss, and specific complications of BS in postoperative patients. METHODS: Two groups participated in the cross-sectional study: the preoperative group (n = 109) was recruited from candidates for BS (gastric bypass or sleeve gastrectomy), the postoperative group (n = 110) was recruited from patients 12-74 months after BS (average 33 months, SD = 16.5). Both groups had completed a preoperative multimodal training program. Specific health knowledge was assessed with a newly developed knowledge questionnaire. Health literacy was evaluated with the short version of the European Health Literacy Survey (HLS-EU-Q16). The 9-item Patient Health Questionnaire (PHQ-9) and the 7-item Generalized Anxiety Scale (GAD-7) were used to assess the levels of depression and anxiety. RESULTS: The pre- and postoperative group did not differ with regard to the number of correctly answered questions on the knowledge questionnaire, with 75% correct answers in both groups (p = 0.059). No correlations were found with health literacy (p = 0.498) and levels of depression (preoperative group: p = 0.279; postoperative group: p = 0.242) and anxiety (preoperative group: p = 0.866; postoperative group: p = 0.119). In postoperative patients specific health knowledge was not associated with the weight loss achieved (p = 0.437). CONCLUSION: The newly designed knowledge questionnaire can be useful for screening specific knowledge of BS patients at different time points.

The effect of surrogate procedure volume on bariatric surgery outcomes: do common laparoscopic general surgery procedures matter?

BACKGROUND: A growing body of evidence shows that experience and acquired skills from surrogate surgical procedures may be transferrable to a specific index operation. It is unclear whether this applies to bariatric surgery. This study aims to determine whether there is a surrogate volume effect of common laparoscopic general surgery procedures on all-cause bariatric surgical morbidity. METHODS: This was a population-based study of all patients aged ≥ 18 who received a bariatric procedure in Ontario from 2008 to 2015. The main outcome of interest was all-cause morbidity during the index admission. All-cause morbidity included any documented complication which extended length of stay by 24 h or required reoperation. Bariatric cases included laparoscopic Roux-en-Y gastric bypass, sleeve gastrectomy, and biliopancreatic diversion with duodenal switch. Non-bariatric cases included three common laparoscopic general surgery procedures. RESULTS: 13,836 bariatric procedures were performed by 29 surgeons at nine centers of excellence. A reduction in all-cause morbidity was seen when bariatric surgeons exceeded 75 cases annually (OR 0.82, 95% CI 0.69-0.98, P = 0.023), with further reduction in increasing bariatric volume. However, the volume of non-bariatric surgeries did not significantly affect bariatric all-cause morbidity rates amongst bariatric surgeons, even when exceeding 100 cases (OR 0.84, 95% CI 0.61-1.12, P = 0.222). CONCLUSIONS: The present study suggests that experience and skills acquired in performing non-bariatric laparoscopic general surgery does not appear to affect all-cause morbidity in bariatric surgery. Therefore, only a surgeon's bariatric procedure volume should considered be a quality marker for outcomes after bariatric surgery.

Learning Curves of Laparoscopic Roux-en-Y Gastric Bypass and Sleeve Gastrectomy in Bariatric Surgery: a Systematic Review and Introduction of a Standardization.

BACKGROUND: The most commonly performed bariatric procedures are laparoscopic Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (LSG). Impact of learning curves on operative outcome has been well shown, but the necessary learning curves have not been clearly defined. This study provides a systematic review of the literature and proposes a standardization of phases of learning curves for RYGB and LSG. METHODS: A systematic literature search was performed using PubMed, Web of Science, and CENTRAL databases. All studies specifying a number or range of approaches to characterize the learning curve for RYGB and LSG were selected. RESULTS: A total of 28 publications related to learning curves for 27,770 performed bariatric surgeries were included. Parameters used to determine the learning curve were operative time, complications, conversions, length of stay, and blood loss. Learning curve range was 30-500 (RYGB) and 30-200 operations (LSG) according to different definitions and respective phases of learning curves. Learning phases described the number of procedures necessary to achieve predefined skill levels, such as competency, proficiency, and mastery. CONCLUSIONS: Definitions of learning curves for bariatric surgery are heterogeneous. Introduction of the three skill phases competency, proficiency, and mastery is proposed to provide a standardized definition using multiple outcome variables to enable better comparison in the future. These levels are reached after 30-70, 70-150, and up to 500 RYGB, and after 30-50, 60-100, and 100-200 LSG. Training curricula, previous laparoscopic experience, and high procedure volume are hallmarks for successful outcomes during the learning curve.

Training in Bariatric Surgery: a National Survey of German Bariatric Surgeons.

INTRODUCTION: Skill in bariatric surgery has been associated with postoperative outcome. Appropriate surgical training is of paramount importance. In order to continuously improve training strategies, it is necessary to assess current practices. AIM: To determine how German bariatric surgeons have been trained and to assess current training strategies. METHODS: Between February 2017 and March 2017, an online census of surgeons registered as members of the German Society for Bariatric and Metabolic Surgery was conducted. A total of three reminders were sent out. Data were analyzed using descriptive statistics. Data was reported as median (interquartile range); percentages were adjusted for completed answers only. RESULTS: A response rate of 51% (n = 214) was achieved. Surgeons reported a median of 14.5 (8-20) years of surgical experience after initial training, with a specific bariatric experience of 7 (4-13) years. The total cumulative bariatric case volume was 240 (80-500) cases, with an annual case volume of 50 (25-80). The most commonly applied approaches to bariatric skills acquisition were "learning by doing" (71%), "course participation" (70%) and "observerships" (70%). Fellowships and the use of operating videos were less frequently applied strategies (19%/ 47%). Interestingly, observerships (94%) and course participation (89%) were rated as very important/important, whereas "learning by doing" (62%), watching operation videos (59%), and fellowships (48%) were less frequently perceived as important/very important training strategies. CONCLUSIONS: The majority of surgeons performing bariatric cases were senior surgeons with more than 10 years of post-training experience; nevertheless, the survey revealed a lack of structured approaches to bariatric specialization training.

Implementation and evaluation of a comprehensive proficiency-based curriculum in an advanced, minimally invasive procedure: a multi-institutional Canadian experience.

INTRODUCTION: A comprehensive proficiency-based curriculum for an advanced, minimally invasive procedure was previously developed and shown to be more educationally effective than conventional surgery training. OBJECTIVE: To implement and evaluate this proficiency-based curriculum in 2 academic general surgery residency programs in Canada. SETTING: Two academic, general surgery residency programs at university hospitals in Ontario, Canada. METHODS: An 8-week, proficiency-based curriculum consisted of a didactic component (lectures, small group sessions, assigned readings) and a simulation-based component (proficiency-based training in laparoscopic enteroenterostomy and a simulated operating room crisis scenario). It was offered to postgraduate years 2-5 general surgery residents in 2 academic programs in Canada. Pre- and postcurriculum procedure-specific knowledge and psychomotor skills were assessed using a 25-item knowledge test and a procedure-specific assessment scale. Postcurriculum nontechnical skills were assessed using the Nontechnical Skills for Surgeons scale. Participants' perceptions about the curriculum were assessed using a questionnaire. Direct costs for curriculum implementation were recorded. RESULTS: Twenty-five residents participated in the curriculum across 2 programs. Completion of the curriculum resulted in significant improvement in technical skills (45 [37.5-65] versus 88 [85-93]; P < .01) and demonstration of "acceptable" situational awareness (3 [3-4]), decision-making (3 [3-4]), teamwork and communication (3 [2-4]), and leadership (3 [3-4]) skills. There was no improvement in procedure-specific knowledge (48 [40-64] versus 58 [48-60]; P = .39). Participants perceived all components of the curriculum as educationally valuable, and 96% agreed and/or strongly agreed that this curriculum should continue to be a part of academic curriculum. The average cost of curriculum implementation was $613.05 Canadian dollars per participant. Lack of faculty supervision was the main barrier to implementation with only 65% of participants agreeing and/or strongly agreeing that quantity of faculty supervision was optimal. CONCLUSIONS: A comprehensive proficiency-based curriculum for an advanced, minimally invasive procedure was successfully implemented and evaluated at 2 academic general surgery residency programs in Canada. Adequate faculty preceptor resources are essential for widespread implementation.