Faculty and Resident Perspectives on the Implementation of Entrustable Professional Activities in General Surgery Residency.

OBJECTIVE: This study aimed to identify what best practices facilitate implementation of Entrustable Professional Activities (EPAs) into surgical training programs. DESIGN: This is a mixed methods study utilizing both survey data as well as semi-structured interviews of faculty and residents involved in the American Board of Surgery (ABS) EPA pilot study. SETTING: From 2018 to 2020, the ABS conducted a pilot that introduced five EPAs across 28 general surgery training programs. PARTICIPANTS: All faculty members and residents at the 28 pilot programs were invited to participate in the study. RESULTS: About 117 faculty members and 79 residents responded to the survey. The majority of faculty (81%) and residents (66%) felt that EPAs were useful and were a valuable addition to training. While neither group felt that EPAs were overly time consuming to complete, residents did report difficulty incorporating them into their daily workflow (44%). Semi-structured interviews found that programs that focused on faculty and resident -development and utilized frequent reminders about the importance and necessity of EPAs tended to perform better. CONCLUSIONS: EPA implementation is feasible in general surgery training programs but requires significant effort and engagement from all levels of program personnel. As EPAs are implemented by the ABS nationally a focus on resident and faculty development will be critical to success.

Roles, Responsibilities, and Expectations of Medical Students on Surgical Subinternships: A Modified Delphi Consensus Study.

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.

The Surgical Subinternship: A Unique Opportunity for Early Leadership Development.

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.

The case for a new post-graduate hernia designation: a review of fellowship council case logs from the past twelve-years.

BACKGROUND: The Fellowship Council (FC) is a robust accreditation body with numerous fellowships; however, no specific criteria exist for hernia fellowships. This study analyzed the case log database to evaluate trends in fellowship exposure to hernia repairs. METHODS: FC hernia case log records (2007-2019) were coded as inguinal or ventral hernias and with or without mesh repair. Retrospective analysis examined total hernia repairs logged, type of repair, program designation, and robotic adoption. Robotic adoption was categorized by quartiles of program performance according to the final year of analysis (2018-2019); yearly performance was then graphed by quartiles. RESULTS: Over this twelve-year period, 93,334 hernia repairs, 5 program designations, 152 unique programs and 1,558 unique fellows were analyzed. The number of fellows grew from 106 (2007-2008) to > 130 (2018-2019). Total hernias repairs per fellow increased from an average of 41.2 in 2007-2008 to 75.7 in 2018-2019 (183.7%). Open and robotic hernia repairs increased by 241.9% and 266.3%, respectively; laparoscopic hernia repairs decreased by 14.8%. Inguinal and ventral hernia repairs comprised 48.1% and 51.9% of total cases, respectively. Advanced GI/MIS and Advanced GI/MIS/Bariatrics programs logged the majority of hernia repairs (86.0-90.2%). 2014 began an exponential rise in robotic adoption, with fellows averaging < 1 robotic repairs before and > 25 repairs in 2019. A significant difference was found between all groups when comparing quartiles of robotic adopters (median robotic repairs per fellow; IQR): first quartile (72.0; 47.9-108.8), second quartile (25.5; 21.0-30.6), third quartile (13.0; 12.0-14.3) and fourth quartile (3.5; 0.5-5.0) (p-value < 0.05). CONCLUSIONS: This twelve-year analysis shows a near doubling in the growth of total hernia repairs, with a decrease in laparoscopic repairs as robotic repairs increased. These data show the importance of hernia repairs in FC fellows' training and warrant further granular analysis to determine specific accreditation criteria for hernia fellowship designations.

National Comparison of Program Director Perceptions vs. Resident Reports of the Learning Environment and Well-Being.

OBJECTIVE: Our research objectives were to (1) assess the correlation between PD perceptions and their residents' reported experiences and (2) identify PD and program characteristics associated with alignment between PD perceptions and their residents' reports. DESIGN, SETTING, PARTICIPANTS: A survey was administered to US general surgery residents following the 2019 American Board of Surgery In-Training Examination (ABSITE) to study wellness (burnout, thoughts of attrition, and suicidality) and mistreatment (gender discrimination, sexual harassment, racial/ethnic/religious discrimination, bullying). General surgery program directors (PDs) were surveyed about the degree to which they perceived mistreatment and wellness within their programs. Concordance between PDs' perceptions and their residents' reports was assessed using Spearman correlations. Multivariable logistic regression models examined factors associated with alignment between PDs and residents. RESULTS: Of 6,126 residents training at SECOND Trial-enrolled programs, 5,240 (85.5%) responded to the ABSITE survey. All 212 PDs of programs enrolled in the SECOND Trial (100%) responded to the PD survey. Nationally, the proportion of PDs perceiving wellness issues was similar to the proportion of residents reporting them (e.g., 54.9% of PDs perceive that burnout is a problem vs. 40.1% of residents experience at least one burnout symptom weekly); however, the proportion of PDs perceiving mistreatment vastly underestimated the proportion of residents reporting it (e.g., 9.3% of all PDs perceive vs. 65.9% of all residents report bullying). Correlations between PDs' perceptions of problems within their program and their residents' reports were weak for racial/ethnic/religious discrimination (r = 0.176, p = 0.019), sexual harassment (r = 0.180, p = 0.019), burnout (r = 0.198, p = 0.007), and thoughts of attrition (r = 0.193, p = 0.007), and non-existent for gender discrimination, bullying, or suicidality. Multivariable regression models did not identify any program or PD characteristics that were consistently associated with improved resident-program director alignment. CONCLUSIONS: Resident and PD perceptions were generally disparate regarding mistreatment, burnout, thoughts of attrition, and suicidality. Reconciling this discrepancy is critical to enacting meaningful change to improve the learning environment and resident well-being.

Long-Term, Prospective, Multicenter Study of Poly-4-Hydroxybutyrate Mesh (Phasix Mesh) for Hernia Repair in Cohort at Risk for Complication: 60-Month Follow-Up.

BACKGROUND: Long-term resorbable mesh represents a promising technology for ventral and incisional hernia repair (VIHR). This study evaluates poly-4-hydroxybutyrate mesh (P4HB; Phasix Mesh) among comorbid patients with CDC class I wounds. STUDY DESIGN: This prospective, multi-institutional study evaluated P4HB VIHR in comorbid patients with CDC class I wounds. Primary outcomes included hernia recurrence and surgical site infection. Secondary outcomes included pain, device-related adverse events, quality of life, reoperation, procedure time, and length of stay. Evaluations were scheduled at 1, 3, 6, 12, 18, 24, 30, 36, and 60 months. A time-to-event analysis (Kaplan-Meier) was performed for primary outcomes; secondary outcomes were reported as descriptive statistics. RESULTS: A total of 121 patients (46 male, 75 female) 54.7 ± 12.0 years old with a BMI of 32.2 ± 4.5 kg/m 2 underwent VIHR with P4HB Mesh (mean ± SD). Fifty-four patients (44.6%) completed the 60-month follow-up. Primary outcomes (Kaplan-Meier estimates at 60 months) included recurrence (22.0 ± 4.5%; 95% CI 11.7% to 29.4%) and surgical site infection (10.1 ± 2.8%; 95% CI 3.3 to 14.0). Secondary outcomes included seroma requiring intervention (n = 9), procedure time (167.9 ± 82.5 minutes), length of stay (5.3 ± 5.3 days), reoperation (18 of 121, 14.9%), visual analogue scale-pain (change from baseline -3.16 ± 3.35 cm at 60 months; n = 52), and Carolinas Comfort Total Score (change from baseline -24.3 ± 21.4 at 60 months; n = 52). CONCLUSIONS: Five-year outcomes after VIHR with P4HB mesh were associated with infrequent complications and durable hernia repair outcomes. This study provides a framework for anticipated long-term hernia repair outcomes when using P4HB mesh.

A prospective, multicenter trial of a long-term bioabsorbable mesh with Sepra technology in cohort of challenging laparoscopic ventral or incisional hernia repairs (ATLAS trial).

BACKGROUND: This prospective, multicenter, single-arm, open-label study evaluated P4HB-ST mesh in laparoscopic ventral or incisional hernia repair (LVIHR) in patients with Class I (clean) wounds at high risk for Surgical Site Occurrence (SSO). METHODS: Primary endpoint was SSO requiring intervention <45 days. Secondary endpoints included: surgical procedure time, length of stay, SSO >45 days, hernia recurrence, device-related adverse events, reoperation, and Quality of Life at 1, 3, 6, 12, 18, and 24-months. RESULTS: 120 patients (52.5% male), mean age of 55.0 ± 14.9 years, and BMI of 33.2 ± 4.5 kg/m2 received P4HB-ST mesh. Patient-reported comorbid conditions included: obesity (86.7%), active smoker (45.0%), COPD (5.0%), diabetes (16.7%), immunosuppression (2.5%), coronary artery disease (7.5%), chronic corticosteroid use (2.5%), hypoalbuminemia (0.8%), advanced age (10.0%), and renal insufficiency (0.8%). Hernia types were primary ventral (44.2%), primary incisional (37.5%), recurrent ventral (5.8%), and recurrent incisional (12.5%). Patients underwent LVIHR in laparoscopic (55.8%) or robotic-assisted cases (44.2%), mean defect size 15.7 ± 28.3 cm2, mean procedure time 85.9 ± 43.0 min, and mean length of stay 1.0 ± 1.4 days. There were no SSOs requiring intervention beyond 45 days, n = 38 (31.7%) recurrences, n = 22 (18.3%) reoperations, and n = 2 (1.7%) device-related adverse events (excluding recurrence). CONCLUSION: P4HB-ST mesh demonstrated low rates of SSO and device-related complications, with improved quality of life scores, and reoperation rate comparable to other published studies. Recurrence rate was higher than expected at 31.7%. However, when analyzed by hernia defect size, recurrence was disproportionately high in defects ≥7.1 cm2 (43.3%) compared to defects <7.1 cm2 (18.6%). Thus, in LVIHR, P4HB-ST may be better suited for small defects. Caution is warranted when utilizing P4HB-ST in laparoscopic IPOM repair of larger defects until additional studies can further investigate outcomes.

Antireflux surgery leads to durable improvement in laryngopharyngeal reflux symptoms.

BACKGROUND: Laryngopharyngeal reflux (LPR) symptoms are often present in patients with Gastroesophageal reflux disease (GERD). Whereas antireflux surgery (ARS) provides predictably excellent results in patients with typical GERD, those with atypical symptoms have variable outcomes. The goal of this study was to characterize the response of LPR symptoms to antireflux surgery. METHODS: Patients who underwent ARS between January 2009 and May 2020 were prospectively identified from a single institutional database. Patient-reported information on LPR symptoms was collected at standardized time points (preoperative and 2 weeks, 8 weeks, and 1 year postoperatively) using a validated Reflux Symptom Index (RSI) questionnaire. Patients were grouped by preoperative RSI score: ≤ 13 (normal) and > 13 (abnormal). Baseline characteristics were compared between groups using chi-square test or t-test. A mixed effects model was used to evaluate improvement in RSI scores. RESULTS: One hundred and seventy-six patients fulfilled inclusion criteria (mean age 57.8 years, 70% female, mean BMI 29.4). Patients with a preoperative RSI ≤ 13 (n = 61) and RSI > 13 (n = 115) were similar in age, BMI, primary reason for evaluation, DeMeester score, presence of esophagitis, and hiatal hernia (p > 0.05). The RSI > 13 group had more female patients (80 vs 52%, p = < 0.001), higher mean GERD-HRQL score, lower rates of PPI use, and normal esophageal motility. The RSI of all patients improved from a mean preoperative value of 19.2 to 7.8 (2 weeks), 6.1 (8 weeks), and 10.9 (1 year). Those with the highest preoperative scores (RSI > 30) had the best response to ARS. When analyzing individual symptoms, the most likely to improve included heartburn, hoarseness, and choking. CONCLUSIONS: In our study population, patients with LPR symptoms achieved a rapid and durable response to antireflux surgery. Those with higher preoperative RSI scores experienced the greatest improvement. Our data suggest that antireflux surgery is a viable treatment option for this patient population.

Gender Differences in Entrustable Professional Activity Evaluations of General Surgery Residents.

OBJECTIVE: To determine differences in entrustable professional activity (EPA) assessments between male and female general surgery residents. SUMMARY BACKGROUND DATA: Evaluations play a critical role in career advancement for physicians. However, female physicians in training receive lower evaluations and underrate their own performance. Competency-based assessment frameworks, such as EPAs, may help address gender bias in surgery by linking evaluations to specific, observable behaviors. METHODS: In this cohort study, EPA assessments were collected from July 2018 to May 2020. The effect of resident sex on EPA entrustment levels was analyzed using multiple linear and ordered logistic regressions. Narrative comments were analyzed using latent dirichlet allocation to identify topics correlated with resident sex. RESULTS: Of the 2480 EPAs, 1230 EPAs were submitted by faculty and 1250 were submitted by residents. After controlling for confounding factors, faculty evaluations of residents were not impacted by resident sex (estimate = 0.09, P = 0.08). However, female residents rated themselves lower by 0.29 (on a 0-4 scale) compared to their male counterparts (P < 0.001). Within narrative assessments, topics associated with resident sex demonstrated that female residents focus on the "guidance" and "supervision" they received while performing an EPA, while male residents were more likely to report "independent" action. CONCLUSIONS: Faculty assessments showed no difference in EPA levels between male and female residents. Female residents rate themselves lower by nearly an entire post graduate year (PGY) level compared to male residents. Latent dirichlet allocation -identified topics suggest this difference in self-assessment is related to differences in perception of autonomy.

Imposter Syndrome in Surgical Trainees: Clance Imposter Phenomenon Scale Assessment in General Surgery Residents.

BACKGROUND: Imposter syndrome occurs when high-achieving individuals have a pervasive sense of self-doubt combined with fear of being exposed as a fraud, despite objective measures of success. This threatens mental health and well-being. The prevalence and severity of imposter syndrome has not been studied among general surgery residents on a large scale. The primary outcomes of this study were the prevalence and severity of imposter syndrome. STUDY DESIGN: The Clance Impostor Phenomenon Scale was administered to residents at 6 academic general surgery residency programs. Multivariable analysis was performed to identify significant differences among groups and predictive characteristics of imposter syndrome. RESULTS: One hundred and forty-four residents completed the assessment (response rate 46.6%; 47.2% were male). Only 22.9% had "none to mild" or "moderate" imposter syndrome. A majority (76%) had "significant" or "severe" imposter syndrome. There were no significant differences in mean scores among male and female residents (p = 0.69). White residents had a mean score of 71.3 and non-White residents had a mean score of 68.3 (p = 0.24). There was no significant difference between PGY1 to PGY5 or research residents (p = 0.72). There were no significant differences based on US Medical Licensing Examination or American Board of Surgery In-Service Training Examination scores (p = 0.18 and p = 0.37, respectively). CONCLUSIONS: Imposter syndrome is prevalent among general surgery residents, with 76% of residents reporting either significant or severe imposter syndrome. There were no predictive characteristics based on demographics or academic achievement, suggesting that there is something either inherent to those choosing general surgery training or the general surgery training culture that leads to such substantive levels of imposter syndrome.

Perioperative Cost Differences Between Laparoscopic Sleeve Gastrectomy and Laparoscopic Roux-en-Y Gastric Bypass: A Single Institutional Review.

Background: Minimizing bariatric surgery care costs is important since more than 250,000 patients undergo bariatric surgery annually in the United States. The study objective was to compare perioperative costs for the two most common bariatric procedures: laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB). In addition, we sought to identify predictors of high-cost perioperative care. Methods: Adult patients who underwent LSG or LRYGB from 2012 to 2017 were identified using our institutional bariatric surgery database. Perioperative costs, defined as costs incurred from the time of entering the preoperative unit until exiting the postanesthesia care unit, were obtained through billing data. Median perioperative cost components of LSG and LRYGB were compared using Mann-Whitney tests. Multivariable logistic regression was performed to investigate patient-level predictors of high-cost care, defined as the top tercile of perioperative costs. Results: We included 546 bariatric surgery patients with a mean age and body mass index (BMI) of 49.7 years and 45.9 kg/m2, respectively. There were no significant differences in median perioperative costs between LSG and LRYGB ($14,942 versus $15,016; P = .80). Stapler use was the largest cost contributor for both procedures, accounting for 27.7% and 29.2% of costs for LSG and LRYGB, respectively. In multivariable analyses, preoperative patient characteristics, including BMI, were not associated with high-cost perioperative care. Conclusions: Perioperative costs for LSG and LRYGB were similar in our single institution study. Reducing costs outside of the operating room, including those related to ED visits and complications, may be more impactful than focusing on cost reduction directly related to perioperative care.

Experiences of Gender Discrimination and Sexual Harassment Among Residents in General Surgery Programs Across the US.

Importance: Mistreatment is a common experience among surgical residents and is associated with burnout. Women have been found to experience mistreatment at higher rates than men. Further characterization of surgical residents' experiences with gender discrimination and sexual harassment may inform solutions. Objective: To describe the types, sources, and factors associated with (1) discrimination based on gender, gender identity, or sexual orientation and (2) sexual harassment experienced by residents in general surgery programs across the US. Design, Setting, and Participants: This cross-sectional national survey study was conducted after the 2019 American Board of Surgery In-Training Examination (ABSITE). The survey asked respondents about their experiences with gender discrimination and sexual harassment during the academic year starting July 1, 2018, through the testing date in January 2019. All clinical residents enrolled in general surgery programs accredited by the Accreditation Council for Graduate Medical Education were eligible. Exposures: Specific types, sources, and factors associated with gender-based discrimination and sexual harassment. Main Outcomes and Measures: Primary outcome was the prevalence of gender discrimination and sexual harassment. Secondary outcomes included sources of discrimination and harassment and associated individual- and program-level factors using gender-stratified multivariable logistic regression models. Results: The survey was administered to 8129 eligible residents; 6956 responded (85.6% response rate)from 301 general surgery programs. Of those, 6764 residents had gender data available (3968 [58.7%] were male and 2796 [41.3%] were female individuals). In total, 1878 of 2352 female residents (79.8%) vs 562 of 3288 male residents (17.1%) reported experiencing gender discrimination (P < .001), and 1026 of 2415 female residents (42.5%) vs 721 of 3360 male residents (21.5%) reported experiencing sexual harassment (P < .001). The most common type of gender discrimination was being mistaken for a nonphysician (1943 of 5640 residents [34.5%] overall; 1813 of 2352 female residents [77.1%]; 130 of 3288 male residents [4.0%]), with patients and/or families as the most frequent source. The most common form of sexual harassment was crude, demeaning, or explicit comments (1557 of 5775 residents [27.0%] overall; 901 of 2415 female residents [37.3%]; 656 of 3360 male residents [19.5%]); among female residents, the most common source of this harassment was patients and/or families, and among male residents, the most common source was coresidents and/or fellows. Among female residents, gender discrimination was associated with pregnancy (odds ratio [OR], 1.93; 95% CI, 1.03-3.62) and higher ABSITE scores (highest vs lowest quartile: OR, 1.67; 95% CI, 1.14-2.43); among male residents, gender discrimination was associated with parenthood (OR, 1.72; 95% CI, 1.31-2.27) and lower ABSITE scores (highest vs lowest quartile: OR, 0.57; 95% CI, 0.43-0.76). Senior residents were more likely to report experiencing sexual harassment than interns (postgraduate years 4 and 5 vs postgraduate year 1: OR, 1.77 [95% CI, 1.40-2.24] among female residents; 1.31 [95% CI, 1.01-1.70] among male residents). Conclusions and Relevance: In this study, gender discrimination and sexual harassment were common experiences among surgical residents and were frequently reported by women. These phenomena warrant multifaceted context-specific strategies for improvement.

At-home hands-on surgical training during COVID19: proof of concept using a virtual telementoring platform.

INTRODUCTION: Surgeons in practice have limited opportunities to learn new techniques and procedures. Traditionally, in-person hands-on courses have been the most common means for surgeons to gain exposure to new techniques and procedures. The COVID19 pandemic caused a cessation in these courses and left surgeons with limited opportunities to continue their professional development. Thus, SAGES elected to create an innovative hands-on course that could be completed at home in order to provide surgeons with opportunities to learn new procedures during the pandemic. METHODS: This course was initially planned to be taught as an in-person hands-on course utilizing the Acquisition of Data for Outcomes and Procedure Transfer(ADOPT) method 1. We identified a virtual telementoring platform, Proximie Ltd(London, UK), and a company that could create a model of an abdominal wall in order to perform a Transversus Abdominis Release, KindHeart™(Chapel Hill, NC, USA). The course consisted of pre-course lectures and videos to be reviewed by participants, a pre-course call to set learning goals, the hands-on telementoring session from home, and monthly webinars for a year. RESULTS: The ADOPT hands-on hernia course at home was successfully completed on October 23rd of 2020. All participants and faculty were successfully able to set up their model and utilize the telementoring platform, but 15% required assistance. Post course-surveys showed that participants felt that the course was successful in meeting their educational goals and felt similar to prior in-person courses. CONCLUSIONS: SAGES was successfully able to transition and in-person hands-on course to a virtual at-home format. This innovative approach to continuing professional development will be necessary during the times of the COVID19 pandemic, but may be a helpful option for rural surgeons and others with travel restrictions in the future to continue their professional development without the need to travel away from their practice.

Instructional methods of attendings as exhibited during intraoperative takeovers: A pilot study.

BACKGROUND: This pilot study examined intraoperative instructional techniques during "takeovers," defined as the act of an attending taking control of a case from a resident. This work describes what happens during takeovers and identifies possible reasons for takeovers. METHODS: Intraoperative audio-video recordings during 25 laparoscopic inguinal hernia repair procedures were collected. Participants included 2 postgraduate year-5 residents and 5 attendings. Postoperative evaluation forms were completed by attendings. Coding schemes for takeovers during hernia reduction and mesh placement steps were developed using conventional and directed content analysis in an iterative process by study team members, including individuals with expertise in education, surgery, and surgical education. RESULTS: Takeovers occurred in 72% of cases. Frequency of takeovers was not related to case difficulty or differences in resident technical skill levels, nor did they decrease over the duration of the 2-month rotation. Takeovers most commonly occurred when a resident struggled to progress the case. They also occurred when anatomy was unclear or when the attending wanted to teach a specific skill. Differences were identified among attendings regarding frequency of takeovers. The majority of takeover behaviors were directed at instructing residents; however, attendings' teaching techniques did not vary by resident. CONCLUSION: Attending teaching habits appear to be independent of resident skills and depend on the attending's teaching style rather than residents' learning needs. Findings highlight the need for faculty development to help surgical educators learn how to tailor instruction to individual trainees. Additionally, future research is needed to establish the effectiveness of instruction through takeovers in the operating room.

Prospective, multicenter study of P4HB (Phasix™) mesh for hernia repair in cohort at risk for complications: 3-Year follow-up.

BACKGROUND: This study represents a prospective, multicenter, open-label study to assess the safety, performance, and outcomes of poly-4-hydroxybutyrate (P4HB, Phasix™) mesh for primary ventral, primary incisional, or multiply-recurrent hernia in subjects at risk for complications. This study reports 3-year clinical outcomes. MATERIALS AND METHODS: P4HB mesh was implanted in 121 patients via retrorectus or onlay technique. Physical exam and/or quality of life surveys were completed at 1, 3, 6,12, 18, 24, and 36 months, with 5-year (60-month) follow-up ongoing. RESULTS: A total of n = 121 patients were implanted with P4HB mesh (n = 75 (62%) female) with a mean age of 54.7 ± 12.0 years and mean BMI of 32.2 ± 4.5 kg/m2 (±standard deviation). Comorbidities included: obesity (78.5%), active smokers (23.1%), COPD (28.1%), diabetes mellitus (33.1%), immunosuppression (8.3%), coronary artery disease (21.5%), chronic corticosteroid use (5.0%), hypo-albuminemia (2.5%), advanced age (5.0%), and renal insufficiency (0.8%). Hernias were repaired via retrorectus (n = 45, 37.2% with myofascial release (MR) or n = 43, 35.5% without MR), onlay (n = 8, 6.6% with MR or n = 24, 19.8% without MR), or not reported (n = 1, 0.8%). 82 patients (67.8%) completed 36-month follow-up. 17 patients (17.9% ± 0.4%) experienced hernia recurrence at 3 years, with n = 9 in the retrorectus group and n = 8 in the onlay group. SSI (n = 11) occurred in 9.3% ± 0.03% of patients. CONCLUSIONS: Long-term outcomes following ventral hernia repair with P4HB mesh demonstrate low recurrence rates at 3-year (36-month) postoperative time frame with no patients developing late mesh complications or requiring mesh removal. 5-year (60-month) follow-up is ongoing.

Unnecessary use of radiology studies in the diagnosis of inguinal hernias: a retrospective cohort study.

BACKGROUND: The diagnosis of inguinal hernias is predominantly based on physical exam, although imaging may be used in select cases. The objective of this study was to determine the frequency of unnecessary imaging used in the diagnosis of inguinal hernias. METHODS: Patients who underwent elective inguinal hernia repair at a large academic health system in the U.S. from 2010 to 2017 were included. Within this cohort, we identified patients who received imaging 6 months prior to surgery. Through chart review of physical exam findings and imaging indications, we categorized patients into four imaging categories: unrelated, necessary, unnecessary, and borderline. Multivariable logistic regression analysis was used to identify factors associated with receipt of unnecessary imaging. RESULTS: Of 2162 patients who underwent inguinal hernia surgery, 249 patients had related imaging studies 6 months prior to surgery. 47.0% of patients received unnecessary imaging. 66.9% and 33.1% of unnecessary studies were ultrasounds and CT scans, respectively. 24.5% of patients had necessary studies, while 28.5% had studies with borderline indications. On multivariable analysis, having a BMI between 25.0 and 29.9 kg/m2 was associated with receipt of unnecessary studies. Primary care providers and ED physicians were more likely to order unnecessary imaging. CONCLUSIONS: Nearly 50% of all patients who receive any related imaging prior to surgery had potentially unnecessary diagnostic radiology studies. This not only exposes patients to avoidable risks, but also places a significant economic burden on patients and our already-strained health system.

Natural language processing and entrustable professional activity text feedback in surgery: A machine learning model of resident autonomy.

BACKGROUND: Entrustable Professional Activities (EPAs) contain narrative 'entrustment roadmaps' designed to describe specific behaviors associated with different entrustment levels. However, these roadmaps were created using expert committee consensus, with little data available for guidance. Analysis of actual EPA assessment narrative comments using natural language processing may enhance our understanding of resident entrustment in actual practice. METHODS: All text comments associated with EPA microassessments at a single institution were combined. EPA-entrustment level pairs (e.g. Gallbladder Disease-Level 1) were identified as documents. Latent Dirichlet Allocation (LDA), a common machine learning algorithm, was used to identify latent topics in the documents associated with a single EPA. These topics were then reviewed for interpretability by human raters. RESULTS: Over 18 months, 1015 faculty EPA microassessments were collected from 64 faculty for 80 residents. LDA analysis identified topics that mapped 1:1 to EPA entrustment levels (Gammas >0.99). These LDA topics appeared to trend coherently with entrustment levels (words demonstrating high entrustment were consistently found in high entrustment topics, word demonstrating low entrustment were found in low entrustment topics). CONCLUSIONS: LDA is capable of identifying topics relevant to progressive surgical entrustment and autonomy in EPA comments. These topics provide insight into key behaviors that drive different level of resident autonomy and may allow for data-driven revision of EPA entrustment maps.

Ultrasound-guided microwave ablation in the treatment of inguinal neuralgia.

Chronic groin pain can be due to a variety of causes and is the most common complication of inguinal hernia repair surgery. The etiology of pain after inguinal hernia repair surgery is often multifactorial though injury to or scarring around the nerves in the operative region, namely the ilioinguinal nerve, genital branch of the genitofemoral nerve, and the iliohypogastric nerve, is thought to be a key factor in causing chronic post-operative hernia pain or inguinal neuralgia. Inguinal neuralgia is difficult to treat and requires a multidisciplinary approach. Radiologists play a key role in the management of these patients by providing accurate image-guided injections to alleviate patient symptoms and identify the pain generator. Recently, ultrasound-guided microwave ablation has emerged as a safe technique, capable of providing durable pain relief in the majority of patients with this difficult to treat condition. The objectives of this paper are to review the complex nerve anatomy of the groin, discuss diagnostic ultrasound-guided nerve injection and patient selection for nerve ablation, and illustrate the microwave ablation technique used at our institution.

Surgeon Variability Impacts Costs in Laparoscopic Cholecystectomy: the Volume-Cost Relationship.

BACKGROUND: Physician variation in adherence to best practices contributes to the high costs of health care. Understanding surgeon-specific cost variation in common surgical procedures may inform strategies to improve the value of surgical care. METHODS: Laparoscopic cholecystectomies at a single institution were identified over a 5-year period and linked to an institutional cost database. Multiple linear regression was used to control for patient-, case-, and hospital-specific factors while assessing the impact of surgeon variability on cost. RESULTS: The final dataset contained 1686 patients. Higher surgeon volume (reported in tertiles) was associated with decreased costs ($5354 vs. $6301 vs. $7156, p < 0.01) and OR times (66 min vs. 85 min vs. 95 min, p < 0.01). After controlling for patient-, case-, and hospital-specific factors, non-MIS fellowship training type (p < 0.01) and low surgeon volume (p < 0.01) were associated with increased costs, while time in practice did not contribute to cost variation (p = NS). CONCLUSIONS: Surgeon variability contributes to costs in laparoscopic cholecystectomy. Some of this variability is associated with operative volume and fellowship training. Collaboration to limit this cost variability may reduce surgical resource utilization.