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INTRODUCTION: Resident physicians play an important role in teaching the next generation of health-care providers, yet limited research has explored factors influencing effective teaching, such as preresidency experiences or barriers within residency. This study examines residents' prior teaching experience, its correlation with teaching attitudes, and identifies potential barriers to sustained teaching engagement. METHODS: This cross-sectional study surveyed residents across multiple specialties at a single academic center. The survey assessed preresidency teaching experience, perceived barriers, and attitudes toward teaching. Univariate and multivariate analyses identified differences in teaching attitudes based on prior teaching experience and gender. RESULTS: Ninety-two residents across 11 specialties participated (52.2% female). Internal Medicine (28.3%) and General Surgery (26.1%) had the highest representation. Two-thirds of respondents (69.6%) had formal teaching experience before residency. After adjustment, prior teaching experience and male gender were associated with feeling prepared to teach medical students (P = 0.014 and P = 0.001). Male gender was also linked to confidence in teaching material on the wards (P = 0.015). Barriers identified included time constraints (73.9%), lack of content clarity (28.3%), and uncertainty about teaching methods (33.7%). CONCLUSIONS: Residents with prior teaching experience exhibit higher levels of preparedness, content clarity, and confidence in their teaching abilities, underscoring the importance of teaching experience before residency. This study also identified significant barriers to effective teaching, including time constraints, lack of content clarity, uncertainty about teaching methods, and perceived disinterest from medical students. Addressing these barriers is essential for optimizing medical student education.
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INTRODUCTION: Responses to COVID-19 within medical education prompted significant changes to the surgical clerkship. We analyzed the changes in medical student end of course feedback before and after the COVID-19 outbreak. METHODS: Postclerkship surveys from 2017 to 2022 were analyzed including both Likert scale data and free text, excluding the COVID outbreak year 2019-2020. Likert scale questions were compared between pre-COVID (2017-2019) and COVID-era cohorts (2020-2022) with the Mann-Whitney U-test. Free-text comments were analyzed using both thematic analysis and natural language processing including sentiment, word and phrase frequency, and topic modeling. RESULTS: Of the 483 medical students surveyed from 2017 to 2022, 297 responded (61% response rate) to the included end of clerkship surveys. Most medical students rated the clerkship above average or excellent with no significant difference between the pre-COVID and COVID-era cohorts (70.4% Versus 64.8%, P = 0.35). Perception of grading expectations did significantly differ, 51% of pre-COVID students reported clerkship grading standards were almost always clear compared to 27.5% of COVID-era students (P = 0.01). Pre-COVID cohorts more frequently mentioned learning and feedback while COVID-era cohorts more frequently mentioned case, attending, and expectation. Natural language processing topic modeling and formal thematic analysis identified similar themes: team, time, autonomy, and expectations. CONCLUSIONS: COVID-19 presented many challenges to undergraduate medical education. Despite many changes, there was no significant difference in clerkship satisfaction ratings. Unexpectedly, the greater freedom and autonomy of asynchronous lectures and choice of cases became a highlight of the new curriculum. Future research should investigate if there are similar associations nationally with a multi-institutional study.
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COVID-19 , Estágio Clínico , Processamento de Linguagem Natural , Estudantes de Medicina , Humanos , COVID-19/epidemiologia , Estudantes de Medicina/psicologia , Estudantes de Medicina/estatística & dados numéricos , Cirurgia Geral/educação , Inquéritos e Questionários , Avaliação Educacional , Feminino , MasculinoRESUMO
PURPOSE: Surgical subinternships are important rotations for students preparing for a career in general surgery; however, these rotations often vary by institution and service. This modified Delphi study was conducted to reach a consensus set of roles, responsibilities, and expectations of fourth-year medical students on their surgical subinternships. METHOD: Candidate statements on roles, responsibilities, and expectations of subinterns were categorized into 7 domains: rotation structure, rounding and patient care, operating room conduct, technical skills, knowledge base, clinic, and professionalism. Expert panels were assembled of key stakeholders: program directors, clerkship directors, other education faculty, trainees, and recent subinterns. Three Delphi rounds were conducted from January to April 2023 to reach consensus defined a priori as a Cronbach α ≥ 0.8 and 80% or greater panel agreement. RESULTS: Forty-six expert panelists were recruited to participate in Delphi rounds, with 100%, 95.7%, and 97.8% response rates in the first, second, and third rounds, respectively. By the third round, 67 statements reached consensus as essential roles, responsibilities, and expectations of surgical subinterns. Key themes from these 67 statements included subinterns approximating the role of an intern with respect to work hours, patient care responsibilities, basic technical skills, and knowledge base. Panelists rated rounding and patient care as the most important domain, followed closely by professionalism. Additional key domains for evaluation in descending order were knowledge base, operating room conduct, clinic, and technical skills. By the third round, notable disagreements in the Delphi process included technical skills and rounding and patient care (93.3% and 88.9% agreement, respectively). CONCLUSIONS: This study provides a national consensus on core roles, responsibilities, and expectations for medical students completing surgical subinternships. Students can use these recommendations to prepare for subinternships, whereas faculty as well as residents and fellows can use them to evaluate applicants for general surgery residency positions.
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Consenso , Técnica Delphi , Cirurgia Geral , Estudantes de Medicina , Humanos , Estudantes de Medicina/psicologia , Cirurgia Geral/educação , Competência Clínica/normas , Estágio Clínico , Feminino , Masculino , Educação de Graduação em Medicina/métodos , Internato e ResidênciaRESUMO
INTRODUCTION: The surgical clerkship is a formative experience in the medical school curriculum and can leave a lasting impression on students' perception of surgery. Given the historical negative stereotypes of surgeons, the clerkship represents an opportunity to impact students in a meaningful way. METHODS: Our institution developed a program in which research residents can serve as junior clerkship coordinators and educators; working closely with medical students on their surgery clerkship. At the end of their clerkship, students were administered a survey with Likert-scale and free text responses regarding satisfaction with the rotation, lectures, feedback, and value of the clerkship. Student survey results were compared before (2015-2016) and after (2017-2019) the implementation of the scholar program with nonparametric statistical analysis and qualitative text analysis. RESULTS: A total of 413 students responded to the survey with no significant difference in response rate by term (P = 0.88). We found no statistical difference with respect to overall course perception (92.3% versus 91.2%, P = 0.84), but a statistically significant difference was noted for the clarity of the provided written clerkship materials (80.3% versus 91.3%, P = 0.02) and usefulness of the feedback (57.5% versus 78.7%, P = 0.01). Qualitative analysis demonstrated an overall positive shift in perception of the clerkship, improvement in the course materials, and organization. CONCLUSIONS: The scholar program was overall well received by the students with improvements in certain aspects of the clerkship: organization, feedback, and course materials. This program represents a potential strategy to improve certain portions of the medical school clerkship experience.
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Estágio Clínico , Educação de Graduação em Medicina , Cirurgia Geral , Internato e Residência , Estudantes de Medicina , Cirurgiões , Humanos , Atitude , Currículo , Estágio Clínico/métodos , Percepção , Cirurgia Geral/educação , Educação de Graduação em Medicina/métodosRESUMO
OBJECTIVE: Residency serves as a crucial time in the professional and personal development of young physicians. Extensive effort is devoted to the clinical training of residents across the country. However, many residents report concerns with compensation, quality of life, and benefits during their clinical training. We sought to evaluate the benefits packages of resident physicians in comparison with other full-time employees at their institutions. SETTING: "Top 50" Residency programs in Medicine, Surgery, and Pediatrics in the United States. DESIGN: To accomplish this task we selected the, "Top-50," institutions for medicine, pediatrics, and surgery using Doximity's Residency Navigator and compared the benefits of residents at these institutions with full-time employees by accessing benefits offerings listed on institutional websites. RESULTS: We found that residents were more likely to receive parking benefits and gym memberships, while full-time employees were more likely to be offered flexible spending accounts, retirement benefits, and tuition support. CONCLUSIONS: Residents receive different benefits packages than their colleagues employed in full time positions at the same institutions. Further discussion regarding the benefits offered to physicians, and the role that benefits play in resident wellbeing is warranted in light of these findings.
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Internato e Residência , Medicina , Médicos , Humanos , Estados Unidos , Criança , Qualidade de Vida , Emprego , Educação de Pós-Graduação em MedicinaRESUMO
Background: Proficiency in ultrasound usage is quickly becoming an expectation in multiple residency programs: emergency medicine, obstetrics-gynecology, surgery, and internal medicine. There is a lack of affordable training devices for ultrasound training and identification of superficial fluid collections. We sought to develop a model for trainee education in ultrasound usage, identification of superficial fluid collection, aspiration, and incision & drainage (I&D). Materials & methods: Commercially available products were used to develop a novel, low-cost model for ultrasound-guided aspiration and I&D of an abscess. A latex balloon embedded in silicone gel construct simulated a superficial fluid collection when examined with an ultrasound probe and monitor. A 18-gauge needle on a 10-cc syringe were used for aspiration, and a 15-blade disposal scalpel with 0.25â³ packing strip used for I&D. Results: Approximately six hours are required to generate 24 individual models of a superficial abscess. Following an initial investment, each model costs less than $1 USD to produce. Compared to commercially available models, this represents a significant savings. This model was utilized during the medical school academic year as a teaching aid for medical students to simulate ultrasound-guided identification, aspiration, and incision and drainage of a superficial abscess. Conclusions: We successfully produced an affordable, low-cost model of a superficial fluid collection for training in ultrasound usage, aspiration, and I&D. The model represents significant savings over commercially available alternatives and can be easily replicated for trainee education.
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OBJECTIVE: Medical students frequently report ambiguity of expectations in their feedback of the surgery clerkship. Herein, we aimed to gauge general surgery resident and attending expectations of students on their clerkship. DESIGN: Residents and attending surgeons were surveyed on medical student expectations for rounding and floor duties, the operating room, clinic, and professionalism. RESULTS: There were slight differences in expectations between residents and attendings, which were then utilized to facilitate a discussion to create consensus expectations for students. Early outcomes demonstrate improved understanding of expectations by medical students. CONCLUSION: Identifying differences in resident and attending expectations of medical students on their surgery clerkship can help improve the alignment of such expectations. We hope that longterm, this intervention can facilitate a better learning environment for medical students on their surgery clerkship.
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Estágio Clínico , Educação de Graduação em Medicina , Cirurgia Geral , Estudantes de Medicina , Cirurgiões , Humanos , Motivação , Aprendizagem , Inquéritos e Questionários , Cirurgia Geral/educaçãoRESUMO
Subinternships are formative rotations in the surgery-bound medical student's journey to surgical training. This experience allows for further exploration of career goals, plays an important evaluative role in the residency selection process, and offers ongoing opportunities for technical and non-technical development. The graduated responsibility experienced in this setting extends beyond what was experienced during the core surgical clerkship where students are first interfacing with the clinical environment. We review and reflect on the role of subinternships in developing the leadership skills that surgery-bound medical students will need to effectively lead interprofessional healthcare teams in the future.
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Estágio Clínico , Educação de Graduação em Medicina , Internato e Residência , Estudantes de Medicina , Humanos , Currículo , LiderançaRESUMO
BACKGROUND: Rectourethral fistulas are a rare yet severe complication of prostate surgery, pelvic irradiation therapy, or both. Multiple surgical repairs exist with widely varying success rates. OBJECTIVE: This study aimed to present our institutional multidisciplinary algorithm for rectourethral fistula repair and its outcomes. DESIGN: This was a retrospective, pre- and postintervention, quasi-experimental design, comparing the frequency of fistula healing and reversal of urinary and fecal diversion before and after implementation of our algorithm. SETTING: All patients who presented to the Duke University with rectourethral fistula between 2002 and 2019 were included. PATIENTS: This study included 79 patients treated for rectourethral fistula: 36 prealgorithm and 43 postalgorithm. INTERVENTIONS: Our multidisciplinary algorithm was implemented in 2012. Patients with fistulas <2 cm and without history of radiation therapy underwent York-Mason repair, whereas those with fistulas 2-3 cm or with prior irradiation underwent transperineal repair with gracilis flap interposition. Those with nonrepairable fistulas (>3 cm or fixed tissues) underwent pelvic exenteration. Before repair, the algorithm recommended all patients to undergo urinary and bowel diversion. MAIN OUTCOME MEASURES: The 2 primary outcomes were rectourethral fistula healing, defined as both radiographic and clinical resolutions, and reversal of urinary and fecal diversions. RESULTS: Frequency of fistula healing improved in the post- versus prealgorithm subgroups (93.1% vs 71.9%; p = 0.04). The relative risk of fistula healing pre- versus postintervention was 0.77 (0.61-0.98; p = 0.04) among the overall cohort. Eighteen patients (22.8%) underwent pelvic exenteration for nonrepairable fistulas and were not included in primary outcome measures. LIMITATIONS: Limitations include the study's retrospective nature, possible selection bias because of algorithmic patient selection, and small sample size. CONCLUSIONS: Implementation of a multidisciplinary institutional algorithm improved rectourethral fistula repair success with high rates of ostomy reversal. Proper patient selection and multidisciplinary involvement are paramount to this success. See Video Abstract at http://links.lww.com/DCR/B955 . RESULTADOS DE UN ABORDAJE ALGORTMICO Y MULTIDISCIPLINARIO PARA LA REPARACIN DE FSTULAS RECTOURETRALES UN ESTUDIO CUASIEXPERIMENTAL PREVIO Y POSTERIOR A LA INTERVENCIN: ANTECEDENTES:Las fístulas rectouretrales son una complicación rara pero grave de la cirugía de próstata, la radiación pélvica o ambas. Existen múltiples reparaciones quirúrgicas con tasas de éxito muy variables.OBJETIVO:Presentar el algoritmo multidisciplinario de nuestra institución para la reparación de fístulas rectouretrales y sus resultados.DISEÑO:Este fue un diseño retrospectivo, previo y posterior a la intervención, cuasiexperimental, que comparó la frecuencia de curación de la fístula y la reversión de la derivación urinaria y fecal antes y después de la implementación de nuestro algoritmo.ESCENARIO:Se incluyeron todos los pacientes que acudieron a Duke con fístula rectouretral entre 2002 y 2019.PACIENTES:Setenta y nueve pacientes fueron tratados por fístula rectouretral; 36 pre-algoritmo y 43 post-algoritmo.INTERVENCIONES:Nuestro algoritmo multidisciplinario se implementó en 2012. Los pacientes con fístulas <2 cm y sin antecedentes de radiación se sometieron a reparación de York-Mason, mientras que aquellos con fístulas de 2-3 cm o radiación pélvica previa se sometieron a reparación transperineal con interposición de colgajo de gracilis. Aquellos con fístulas no reparables (> 3 cm o tejidos fijos) fueron sometidos a exenteración pélvica. Antes de la reparación, el algoritmo recomomendó que todos los pacientes se sometieran a una derivación urinaria y fecal.PRINCIPALES MEDIDAS DE RESULTADO:Los dos resultados primarios fueron la curación de la fístula rectouretral, definida como la resolución radiográfica y clínica, y la reversión de las derivaciones urinaria y fecale.RESULTADOS:La frecuencia de curación de la fístula mejoró en el subgrupo post-algoritmo vs. pre-algoritmo (93.1% vs. 71.9%, p = 0.04). El riesgo relativo de curación de la fístula antes de la intervención en comparación con después de la intervención fue de 0.77 (0.61-0.98, p = 0.04) entre la cohorte general. Dieciocho pacientes (22.8%) se sometieron a exenteración pélvica por fístulas no reparables y, por lo tanto, no se incluyeron en las medidas de resultado primarias.LIMITACIONES:Las limitaciones de este estudio incluyen su naturaleza retrospectiva, posible sesgo de selección debido a la selección algorítmica de pacientes y un tamaño de muestra pequeño.CONCLUSIONES:La implementación de un algoritmo institucional multidisciplinario mejoró el éxito en la reparación de la fístula rectouretral con altas tasas de reversión de la ostomía. La selección adecuada de pacientes y la participación multidisciplinaria son fundamentales para este éxito. Consulte Video Resumen en http://links.lww.com/DCR/B955 . (Traducción-Dr. Jorge Silva Velazco ).
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Exenteração Pélvica , Fístula Retal , Fístula Urinária , Masculino , Humanos , Estudos Retrospectivos , Fístula Retal/cirurgia , Pelve , Fístula Urinária/etiologia , Fístula Urinária/cirurgiaRESUMO
BACKGROUND: Colorectal liver metastases (CRLM) are the most common cause of disease-specific mortality in patients with colorectal cancer. Hepatic artery infusion (HAI) combined with systemic chemotherapy improves survival for these patients. The safety of colorectal resection at the time of HAI pump placement has not been well established. METHODS: Patients with CRLM who underwent combined HAI pump placement and colorectal (primary) resection or HAI pump placement alone were evaluated for perioperative outcomes, pump-specific complications, infectious complications, and time to treatment initiation. These outcomes were compared using comparative statistics. RESULTS: Patients who underwent combined HAI pump placement and primary resection (n = 19) vs HAI pump placement alone (n = 13) had similar demographics and rates of combined hepatectomy. Combined HAI pump placement and primary resection group had similar operative time and blood loss (both p = NS), but longer length of stay (6 vs 4 days, p = 0.02) compared to pump placement alone. Overall postoperative complications (21% vs 8%) and pump-specific complications (16% vs 31%) were similar (both p = NS). Infection rates were not different between groups, nor was time to initiation of HAI therapy (19 vs 16 days p = NS), or systemic therapy (34 vs 35 days p = NS). CONCLUSION: Combining colorectal resection with HAI pump implantation is a safe surgical approach for management of unresectable CRLM. Postoperative complications, specifically infectious complications, were not increased, nor was there a delay to initiation of HAI or systemic chemotherapy. Investigation of long-term oncologic outcomes for HAI pump placement and primary tumor resection in patients with unresectable CRLM is ongoing.
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Neoplasias Colorretais , Neoplasias Hepáticas , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/patologia , Fluoruracila/uso terapêutico , Artéria Hepática/patologia , Humanos , Bombas de Infusão , Infusões Intra-Arteriais , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/cirurgia , Complicações Pós-Operatórias/tratamento farmacológico , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologiaAssuntos
Neoplasias Colorretais/terapia , Recidiva Local de Neoplasia/diagnóstico , Assistência ao Convalescente , Biomarcadores Tumorais/sangue , Sobreviventes de Câncer , Colonoscopia , Neoplasias Colorretais/fisiopatologia , Neoplasias Colorretais/psicologia , Gerenciamento Clínico , Intervalo Livre de Doença , Humanos , Recidiva Local de Neoplasia/sangue , Qualidade de Vida , Medição de Risco , Comportamento de Redução do Risco , Tomografia Computadorizada por Raios XRESUMO
BACKGROUND: The electronic health record has improved medical billing, research, and sharing of patient data, but its clinical use by physicians has been linked to rising physician burnout leading to numerous subjective editorials about the electronic health record inefficiencies and detriment to frontline caregivers. This study aimed to quantify electronic health record use by surgeons. METHODS: The study is a retrospective review and descriptive analysis of deidentified electronic health record data from September 2016 to June 2017. A binary time series was created for each attending to calculate electronic health record system login times. The primary outcome was the total amount of time a surgeon logged into the electronic health record system during the study period. RESULTS: Fifty-one general surgery attendings (31 males, 20 females), spanning 9 specialties spent a mean of 2.0 hours per day and 13.8 hours per week logged into the electronic health record. The top 15% of users were logged in for an average of 4.6 hours per weekday. Sixty-five percent of overall electronic health record use occurred on-site, and 35% was remote. A greater proportion of remote use occurred during nighttime hours and Sundays. Clinic days required the largest amount of electronic health record use time compared with operating room and administrative days. CONCLUSION: General surgery attendings spend a considerable amount of time using the electronic health record. Ultimately, the goal of these quantitative electronic health record results is to correlate with burnout and job satisfaction data to facilitate the implementation of programs to improve efficiency and decrease the burden of charting. Further investigation needs to focus on subgroups who are high electronic health record users to better identify the barriers to efficient electronic health record use.
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Registros Eletrônicos de Saúde , Cirurgiões/estatística & dados numéricos , Registros Eletrônicos de Saúde/estatística & dados numéricos , Feminino , Cirurgia Geral/estatística & dados numéricos , Humanos , Masculino , Padrões de Prática Médica/estatística & dados numéricos , Estudos RetrospectivosRESUMO
BACKGROUND: As the use of minimally invasive techniques in colorectal surgery has become increasingly prevalent, concerns remain about the oncologic effectiveness and long-term outcomes of minimally invasive low anterior resection (MI-LAR) for the treatment of rectal cancer. STUDY DESIGN: The 2010-2015 National Cancer Database (NCDB) Participant Data Use File was queried for patients undergoing elective open LAR (OLAR) or MI-LAR for rectal adenocarcinoma. A 1:1 propensity match was performed on the basis of demographics, comorbidity, and tumor characteristics. Outcomes were compared between groups and Cox proportional hazard modeling was performed to identify independent predictors of mortality. A subset analysis was performed on high-volume academic centers. RESULTS: 35,809 patients undergoing LAR were identified of whom 18,265 (51.0%) underwent MI-LAR. After propensity matching, patients receiving MI-LAR were less likely to have a positive circumferential radial margin (CRM) (5.5% vs. 6.6%, p = 0.0094) or a positive distal margin (3.6% vs. 4.6%, p = 0.0022) and had decreased 90-day all-cause mortality (2.0% vs. 2.6%, p = 0.0238). MI-LAR resulted in decreased hospital length of stay (5 vs. 6 days, p < 0.0001) but a greater rate of 30-day readmission (7.6% vs. 6.5%, p = 0.0054). Long-term overall survival was improved with MI-LAR (79% vs. 76%, p < 0.0001). Cox proportional hazard modeling demonstrated a decreased risk of mortality with MI-LAR (HR 0.859, 95% CI 0.788-0.937). CONCLUSION: MI-LAR is associated with improvement in CRM clearance and long-term survival. In the hands of experienced surgeons with advanced laparoscopy skills, MI-LAR appears safe and effective technique for the management of rectal cancer.
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Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Neoplasias Retais/cirurgia , Idoso , Bases de Dados Factuais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do TratamentoRESUMO
OBJECTIVE: We describe a novel educational model for a student-led anatomy interest group that utilizes an efficient method of knowledge sharing among peers in order to supplement the standard gross anatomy curriculum and expose medical students to advanced, surgically relevant anatomy. DESIGN: Student leaders of the Advanced Anatomy Interest Group compile a list of advanced anatomy "tidbits" related to a topic within a particular surgical specialty. Each medical student participant signs up for a different "tidbit" and prepares a short presentation. On meeting day, students present to the group. After each presentation, a surgical faculty moderator offers feedback and provides additional surgical perspective. SETTING: Duke University School of Medicine, Durham, NC, USA. PARTICIPANTS: Three third year medical student interest group leaders, 20 first through fourth year medical student participants, and 1 surgical faculty moderator. RESULTS: Twelve students presented an advanced anatomy tidbit, and 15 students responded to a 10-question postmeeting survey. Over 90% of respondents either agreed or strongly agreed that their understanding of surgically relevant anatomy had improved. Of those students who presented, 100% agreed or strongly agreed that their preparedness to briefly teach complex medical topics to colleagues had improved. Additionally, students reported increased interest in surgery and an improved perception of surgeons. CONCLUSIONS: This novel educational model appears to be an effective and efficient way to supplement the standard gross anatomy curriculum and expose medical students to advanced, surgically relevant anatomy. In addition, this model enables students to hone their presentation skills, gain experience teaching advanced medical concepts to peers, and develop relationships with surgical faculty. Surgical faculty are also not burdened with any preparatory responsibilities, making their participation more feasible. This model can serve as a template for medical students, house staff, and faculty interested in expanding anatomy education at their own institutions.
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Anatomia , Educação de Graduação em Medicina , Internato e Residência , Estudantes de Medicina , Anatomia/educação , Currículo , Humanos , Modelos Educacionais , Grupo Associado , EnsinoRESUMO
BACKGROUND: Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that delivers constant, low electrical current resulting in changes to cortical excitability. Prior work suggests it may enhance motor learning giving it the potential to augment surgical technical skill acquisition. OBJECTIVES: The aim of this study was to test the efficacy of tDCS, coupled with motor skill training, to accelerate laparoscopic skill acquisition in a pre-registered (NCT03083483), double-blind and placebo-controlled study. We hypothesized that relative to sham tDCS, active tDCS would accelerate the development of laparoscopic technical skills, as measured by the Fundamentals of Laparoscopic Surgery (FLS) Peg Transfer task quantitative metrics. METHODS: In this study, sixty subjects (mean age 22.7 years with 42 females) were randomized into sham or active tDCS in either bilateral primary motor cortex (bM1) or supplementary motor area (SMA) electrode configurations. All subjects practiced the FLS Peg Transfer Task during six 20-min training blocks, which were preceded and followed by a single trial pre-test and post-test. The primary outcome was changes in laparoscopic skill performance over time, quantified by group differences in completion time from pre-test to post-test and learning curves developed from a calculated score accounting for errors. RESULTS: Learning curves calculated over the six 20-min training blocks showed significantly greater improvement in performance for the bM1 group than the sham group (t = 2.07, p = 0.039), with the bM1 group achieving approximately the same amount of improvement in 4 blocks compared to the 6 blocks required of the sham group. The SMA group also showed greater mean improvement than sham, but exhibited more variable learning performance and differences relative to sham were not significant (t = 0.85, p = 0.400). A significant main effect was present for pre-test versus post-test times (F = 133.2, p < 0.001), with lower completion times at post-test, however these did not significantly differ for the training groups. CONCLUSION: Laparoscopic skill training with active bilateral tDCS exhibited significantly greater learning relative to sham. The potential for tDCS to enhance the training of surgical skills, therefore, merits further investigation to determine if these preliminary results may be replicated and extended.
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Competência Clínica , Laparoscopia/métodos , Córtex Motor/fisiologia , Destreza Motora/fisiologia , Estimulação Transcraniana por Corrente Contínua/métodos , Adolescente , Adulto , Competência Clínica/normas , Excitabilidade Cortical/fisiologia , Método Duplo-Cego , Feminino , Humanos , Laparoscopia/normas , Aprendizagem/fisiologia , Masculino , Estimulação Transcraniana por Corrente Contínua/normas , Adulto JovemRESUMO
OBJECTIVES: Rural patients experience disparities in cancer care compared to urban patients. We hypothesized that rural patients with colon cancer who traveled to high-volume centers for treatment have similar survival compared to urban patients who also traveled to high-volume centers to seek treatment for colon cancer. METHODS: The National Cancer Database was interrogated for patients treated for stage I-III colon cancer (2004-2015). Travel distance to treatment centers and annual hospital volume were divided into quartiles. Two groups of patients were identified and compared: (1) rural patients who traveled to high-volume hospitals and (2) urban patients who also traveled to high-volume centers. The primary outcome was overall survival (OS). RESULTS: Of 647,949 patients, 634, 447 were urban and 13,502 were rural. Rural patients were more likely to be Caucasian, with lower income, more comorbidities, and be treated at non-academic centers. In multivariable analysis, rural patients had worse OS compared to urban patients (hazard ratio [HR] 1.08; 95% confidence interval [CI] 1.04-1.12; p = < 0.001). There were 46,781 (7%) urban patients and 1276 (9%) rural patients who traveled a long distance (median 40 and 108 miles, respectively) to high-volume centers. There was no difference in adjusted OS between urban and rural patients who traveled to high-volume centers for treatment (HR 1.06; 95%CI 0.94-1.20; p = 0.36). CONCLUSIONS: This nationwide analysis suggests that rural patients with colon cancer experience worse survival than urban patients, but that this disparity might be mitigated by rural patients traveling to high-volume centers for treatment.