BACKGROUND:Trauma educational opportunities for general surgery residents in Canada are uncharacterized. We aimed to characterize these opportunities for and identify factors associated with such opportunities. METHODS:We performed a prospective cross-sectional study characterizing trauma educational opportunities within Canadian trauma programs. Data were collected during 1 summer week and 1 winter week. We summarized educational opportunities by trauma site and season and used multivariable modelling to evaluate factors associated with increased likelihood of procedure opportunities. RESULTS:Nine academic trauma centres participated. Most consults (93.9%) and trauma team activations (TTAs) (72.3%) were for blunt injuries, and most presentations were during the summer (67.2% TTAs + consults, 69.3% TTAs). Trauma services cared for a median of 14 (interquartile range [IQR] 10-20) inpatients, 4 (IQR 1-6) patients in the intensive care unit, and 0 (IQR 0-2) patients admitted to another service but subsequently followed by a trauma physician (i.e., consulting patients), which varied across hospitals (p < 0.001). Consult, TTA, nonoperative, and operative procedure volumes varied across sites. The most common operative procedures were laparotomies (36.4%), with 1.33 laparotomies per week per site. For nonlaparotomy operations, the maximum volume was 6 over 2 weeks. More operations occurred during summer (74.2%) than winter. Multivariable modelling determined that penetrating mechanisms (odds ratio [OR] 1.87, 95% confidence interval [CI] 1.11-3.15) and TTAs with a trauma surgeon present (OR 2.37, 95% CI 1.59-3.54) were associated with increased likelihood of procedures. CONCLUSION:Trauma educational opportunities remain heterogeneous across Canada. Higher volumes of patients with trauma were seen during the summer. Penetrating mechanism and TTAs with a trauma surgeon present appear to increase opportunities to perform procedures. Our results can inform general surgery training programs to optimize resident trauma training in Canada.

Abdominal compartment syndrome (ACS) is defined as a sustained intra-abdominal pressure ≥ 20 mm Hg, associated with new organ dysfunction. Postoperative ACS can occur following repair of hernias with loss-of-domain. Such loss-of-domain hernias are well described involving incisional hernias, less described involving Bochdalek congenital diaphragmatic hernias (CDHs), but not yet described involving paraesophageal hernias (PEHs) or Morgagni CDHs. We describe a case of postoperative ACS following laparoscopic repair of a PEH and Morgagni CDH. This case demonstrates that prophylactic omentectomy should be considered in select patients undergoing repair of large PEHs or CDHs, as ACS is a rare but potential complication.

Background: General surgeons play an important role in the provision of trauma care in Canada and the current extent of their trauma experience during training is unknown. We sought to quantify the operative and nonoperative educational experiences among Canadian general surgery trainees.Methods: We conducted a multicentre retrospective study of major operative exposures experienced by general surgery residents, as identified using institutional trauma registries and subsequent chart-level review, for 2008-2018. We also conducted a site survey on trauma education and structure.Results: We collected data on operative exposure for general surgery residents from 7 programs and survey data from 10 programs. Operations predominantly occurred after hours (73% after 1700 or on weekends) and general surgery residents were absent from a substantial proportion (25%) of relevant trauma operations. The structure of trauma education was heterogeneous among programs, with considerable site-specific variability in the involvement of surgical specialties in trauma care. During their training, graduating general surgery residents each experienced around 4 index trauma laparotomies, 1 splenectomy, 1 thoracotomy, and 0 neck explorations for trauma.Conclusion: General surgery residents who train in Canada receive variable and limited exposure to operative and nonoperative trauma care. These data can be used as a baseline to inform the application of competency-based medical education in trauma care for general surgery training in Canada. Contexte: Les chirurgiennes et chirurgiens generalistes jouent un role important dans la prestation de soins de traumatologie au Canada, et l'etendue actuelle de leur experience en traumatologie durant la formation est inconnue. Nous avons voulu quantifier les experiences pedagogiques operatoires et non operatoires chez les stagiaires en chirurgie generale du Canada.Methodes: Nous avons mene une etude retrospective multicentrique sur les expositions operatoires majeures que vivent les residentes et residents en chirurgie generale, reperees dans les registres de traumatologie des etablissements et dans le cadre d'un examen subsequent des dossiers, pour la periode de 2008-2018. Nous avons aussi mene une enquete sur la formation en traumatologie et la structure de celle-ci.Resultats: Nous avons recueilli des donnees sur l'exposition operatoire des residentes et residents en chirurgie generale de 7 programmes ainsi que des donnees d'enquete de 10 programmes. Les interventions chirurgicales avaient principalement lieu en dehors des heures normales (73 % apres 17 h ou la fin de semaine), et les residentes et residents etaient absents d'une proportion considerable (25 %) des interventions de traumatologie pertinentes. La structure de la formation sur le sujet etait heterogene entre les programmes, avec une importante variation d'un etablissement a l'autre dans la participation des specialites chirurgicales dans les soins de traumatologie. Durant leur formation, les residentes et residents en chirurgie generale qui terminaient leurs etudes avaient chacun participe a environ 4 laparotomies initiales de traumatologie, 1 splenectomie, 1 thoracotomie et 0 exploration du cou pour un trauma.Conclusion: Les residentes et residents en chirurgie generale formes au Canada sont exposes de facon variable et limitee aux soins de traumatologie operatoires et non operatoires. Ces donnees peuvent servir de valeur de reference pour orienter l'application d'une formation medicale fondee sur les competences en traumatologie dans la formation en chirurgie generale au Canada.

Ventral incisional hernias are common indications for elective repair and frequently complicated by recurrence. Surgical meshes, which may be synthetic, bio-synthetic, or biological, decrease recurrence and, resultingly, their use has become standard. While most patients are greatly benefited, mesh represents a permanently implanted foreign body. Mesh may be implanted within the intra-peritoneal, preperitoneal, retrorectus, inlay, or onlay anatomic positions. Meshes may be associated with complications that may be early or late and range from minor to severe. Long-term complications with intra-peritoneal synthetic mesh (IPSM) in apposition to the viscera are particularly at risk for adhesions and potential enteric fistula formation. The overall rate of such complications is difficult to appreciate due to poor long-term follow-up data, although it behooves surgeons to understand these risks as they are the ones who implant these devices. All surgeons need to be aware that meshes are commercial devices that are delivered into their operating room without scientific evidence of efficacy or even safety due to the unique regulatory practices that distinguish medical devices from medications. Thus, surgeons must continue to advocate for more stringent oversight and improved scientific evaluation to serve our patients properly and protect the patient–surgeon relationship as the only rationale long-term strategy to avoid ongoing complications.

OBJECTIVE: This study aims to develop a set of curriculum recommendations to support trauma training in Canadian general surgery residency programs. DESIGN: A modified Delphi study was conducted with a panel of trauma and surgical education experts. Proposed curriculum components were developed from Canadian trauma surgery exposure and educational needs assessment data. Panelists were asked to rate each potential curriculum component for inclusion (mandatory or exemplary) or exclusion in the ideal and feasible trauma training curriculum. S ETTING: This national Delphi study was conducted in the Canadian trauma education context. PARTICIPANTS: A panel of trauma experts and surgeons holding leadership positions in training programs and professional societies across Canada were invited to participate. RESULTS: Nineteen panelists representing all geographic regions of Canada achieved consensus on a set of curriculum components. The panel was largely in agreement with the RCPSC trauma competencies. At the end of the study, 71 items were considered mandatory for all programs (such as dedicated trauma rotations, trauma resuscitation and operative skills courses, structured trauma teaching within academic half day, and simulation experiences), and 21 items were considered exemplary (such as program funding for trauma courses, and opportunities to participate in trauma research and quality improvement projects). CONCLUSIONS: This study suggests a framework of education components for curricular reform for trauma training in Canadian general surgery residency programs. Such recommendations include rotations, formal courses and certifications, education resources, and simulation experiences to supplement limited clinical exposure. (c) 2023 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.)

Acute care surgery (ACS) is an area of surgical specialization within general surgery and a model for clinical care delivery that has proliferated over the last 2 decades. Models of ACS in Canada exist in both academic and community settings and are used to manage patients in need of emergency general surgery (EGS) care, with or without the provision of trauma care. The implementation of the ACS model has changed the landscape of patient care, surgical education and the workforce, providing an option for some general surgeons to exclude EGS care from their regular practice. The rise of ACS as a concentration of surgical skill and content expertise has resulted in the establishment of dedicated ACS fellowship training programs. This is a landmark in the evolution of general surgery, as well as a stepping stone on the path to improving patient care, surgical education and scholarly endeavour in this field.

Background Severe complicated intra-abdominal sepsis (SCIAS) has an increasing incidence with mortality rates over 80% in some settings. Mortality typically results from disruption of the gastrointestinal tract, progressive and self-perpetuating bio-mediator generation, systemic inflammation, and multiple organ failure. A further therapeutic option may be open abdomen (OA) management with negative peritoneal pressure therapy (NPPT) to remove inflammatory ascites and attenuate the systemic damage from SCIAS, although there are definite risks of leaving the abdomen open whenever it might possibly be closed. This potential therapeutic paradigm is the rationale being assessed in the Closed Or Open after Laparotomy (COOL trial) ( https://clinicaltrials.gov/ct2/show/NCT03163095 ). Initially, the COOL trial received Industry sponsorship; however, this funding mandated the use of a specific trademarked and expensive NPPT device in half of the patients allocated to the intervention (open) arm. In August 2022, the 3 M/Acelity Corporation without consultation but within the terms of the contract canceled the financial support of the trial. Although creating financial difficulty, there is now no restriction on specific NPPT devices and removing a cost-prohibitive intervention creates an opportunity to expand the COOL trial to a truly global basis. This document describes the evolution of the COOL trial, with a focus on future opportunities for global growth of the study. Methods The COOL trial is the largest prospective randomized controlled trial examining the random allocation of SCIAS patients intra-operatively to either formal closure of the fascia or the use of the OA with an application of an NPPT dressing. Patients are eligible if they have free uncontained intraperitoneal contamination and physiologic derangements exemplified by septic shock OR severely adverse predicted clinical outcomes. The primary outcome is intended to definitively inform global practice by conclusively evaluating 90-day survival. Initial recruitment has been lower than hoped but satisfactory, and the COOL steering committee and trial investigators intend with increased global support to continue enrollment until recruitment ensures a definitive answer. Discussion OA is mandated in many cases of SCIAS such as the risk of abdominal compartment syndrome associated with closure, or a planned second look as for example part of “damage control”; however, improved source control (locally and systemically) is the most uncertain indication for an OA. The COOL trial seeks to expand potential sites and proceed with the evaluation of NPPT agnostic to device, to properly examine the hypothesis that this treatment attenuates systemic damage and improves survival. This approach will not affect internal validity and should improve the external validity of any observed results of the intervention. Trial registration : National Institutes of Health ( https://clinicaltrials.gov/ct2/show/NCT03163095 ).

Kirkpatrick, Major Andrew W. CD, MD, MHSc, FACS; Coccolini, Federico MD, PhD; Minor, Samuel MD, FRSCS, FACS Author Information

Abstract · Background: Severe complicated intra-abdominal sepsis (SCIAS) has an increasing incidence with mortality rates over 80% in some settings. Mortality typically results from disruption of the gastrointestinal tract, progressive and self-perpetuating bio-mediator generation, systemic inflammation, and multiple organ failure. A further therapeutic option may be open abdomen (OA) management with negative peritoneal pressure therapy (NPPT) to remove inflammatory ascites and attenuate the systemic damage from SCIAS, although there are definite risks of leaving the abdomen open whenever it might possibly be closed. This potential therapeutic paradigm is the rationale being assessed in the Closed Or Open after Laparotomy (COOL-trial)(https://clinicaltrials.gov/ct2/show/NCT03163095). Initially, the COOL-trial received Industry sponsorship; however, this funding mandated the use of a specific trademarked and expensive NPPT device in half of patients allocated to the intervention (open) arm. In August 2022, the 3M/Acelity Corporation without consultation but within the terms of the contract cancelled the financial support of the trial. Although creating financial difficulty, there is now no restriction on specific NPPT devices and removing a cost-prohibitive intervention creates an opportunity to expand the COOL trial to a truly global basis. This document describes the evolution of the COOL trial, with a focus on future opportunities for global growth of the study. · Methods: The COOL trial is the largest prospective randomized controlled trial examining the random allocation of SCIAS patients intra-operatively to either formal closure of the fascia or use of the OA with application of an NPPT dressing. Patients are eligible if they have free uncontained intra-peritoneal contamination and physiologic derangements exemplified by septic shock OR severely adverse predicted clinical outcomes. The primary outcome is intended to definitively inform global practice by conclusively evaluating 90-day survival. Initial recruitment has been lower than hoped but satisfactory, and the COOL steering committee and trial investigators intend with increased global support to continue enrollment until recruitment ensures a definitive answer. · Discussion: OA is mandated in many cases of SCIAS such as the risk of abdominal compartment syndrome associated with closure, or a planned second look as for example part of ‘damage control’, however improved source control (locally and systemically) is the most uncertain indication for an OA. The COOL-trial trial seeks to expand potential sites and proceed with evaluation of NPPT agnostic to device, to properly examine the hypothesis that this treatment attenuates systemic damage and improves survival. This approach will not affect internal validity and should improve the external validity of any observed results of the intervention. · Trial registration: National Institutes of Health (https://clinicaltrials.gov/ct2/show/NCT03163095).

Background:In situ simulation provides an excellent tool for training, education, and quality improvement in trauma care.The benefits have been well described, but there is potential for harm or delay in patient care when running an unscheduled simulation with working staff members.The objective of this study is to assess trauma team member's perceptions regarding the value of in situ simulation relative to its perceived impact on patient care.Methods: A longitudinal survey was conducted between February 2019 and July 2020 and included all members of the multidisciplinary trauma team at a level 1 trauma centre in Nova Scotia, Canada.After each monthly in situ simulation, participants were given a 10-question survey with answers on a 5-point Likert scale.Results: One hundred and three surveys were completed.Survey respondents included physicians, trainees, and allied health staff.Simulations were found to infrequently compromise patient care, and minimal patient harm was described.The participants believed that in situ simulations improved many important aspects of trauma care, including communication and identification of latent safety issues.When the required time to complete an in situ simulation increased when COVID protocols were put into practice, the perceived major benefits of in situ simulation relative to its potential harm did not change.Conclusion: Trauma in situ training is perceived to be a good learning opportunity that identifies safety issues and improves patient care.It is not perceived to cause delays or compromise patient care, even when additional time is required for simulation training.

Based on the results of this multicenter study of severe liver injuries from 10 trauma centers across North America, we recommend that ERCP be reserved for bile leaks with >300 ml of bilious drain output. Smaller leaks can be managed with percutaneous drainage alone. BACKGROUND Optimal management of bile leaks (BLs) after severe liver injury is unknown. Study objectives were to define current practices in diagnosis and management of BL to determine which patients may benefit from endoscopic retrograde cholangiopancreatography (ERCP). METHODS American Association for the Surgery of Trauma grade ≥III liver injuries from 10 North American trauma centers were included in this retrospective study (February 2011 to January 2021). Groups were defined as patients who developed BL versus those who did not. Subgroup analysis of BL patients was performed by management strategy. Bivariate analysis compared demographics, clinical/injury data, and outcomes. Receiver operating characteristic curves were performed to investigate the relationship between bilious drain output and ERCP. RESULTS A total of 2,225 patients with severe liver injury met the study criteria, with 108 BLs (5%). Bile leak patients had higher American Association for the Surgery of Trauma grade of liver injury (p < 0.001) and were more likely to have been managed operatively from the outset (69% vs. 25%, p < 0.001). Bile leak was typically diagnosed on hospital day 6 [4–10] via surgical drain output (n = 37 [39%]) and computed tomography scan (n = 34 [36%]). On the BL diagnosis day, drain output was 270 [125–555] mL. Endoscopic retrograde cholangiopancreatography was the most frequent management strategy (n = 59 [55%]), although 32 patients (30%) were managed with external drains alone. Bile leak patients who underwent ERCP, surgery, or percutaneous transhepatic biliary drain had higher drain output than BL patients who were managed with external drains alone (320 [180–720] vs. 138 [85–330] mL, p = 0.010). Receiver operating characteristic curve analysis of BL demonstrated moderate accuracy (area under the receiver operating characteristic curve, 0.636) for ERCP at a cutoff point of 390 mL of bilious output on the day of diagnosis. CONCLUSION Patients with BL >300 to 400 mL were most likely to undergo ERCP, percutaneous transhepatic biliary drain, or surgical management. Once external drainage of BL has been established, we recommend ERCP be reserved for patients with BL >300 mL of daily output. Prospective multicenter examination will be required to validate these retrospective data. LEVEL OF EVIDENCE Therapeutic and Care Management; Level IV.

The rare (<2%) development of calcium deposits in soft tissue, known as dystrophic calcification (DC) with the use of Stimulan® (Biocomposites Ltd, Wilmington, NC) absorbable, calcium sulfate antibiotic beads (CSABs) in the setting of orthopedic surgery has previously been described. However, the use of CSAB in hernia repair is relatively novel and its association with the development of DC in this setting has not been previously reported. We describe a case where DC following abdominal wall reconstruction with CSAB was misinterpreted on CT imaging as an enteric fistula and almost resulted in an unnecessary emergency surgical procedure.

BACKGROUND:The risk of death after a postoperative complication - known as failure to rescue (FTR) - has been proposed to be superior to traditional benchmarking outcomes, such as complication and mortality rates, as a measure of system quality. The purpose of this study was to identify the current FTR rate in emergency general surgery (EGS) centres across Canada. We hypothesized that substantial variability exists in FTR rates across centres.METHODS:In this multicentre retrospective cohort study, we performed a secondary analysis of data from a previous study designed to evaluate operative intervention for nonappendiceal, nonbiliary disease by 6 EGS services across Canada (1 in British Columbia, 1 in Alberta, 3 in Ontario and 1 in Nova Scotia). Patients underwent surgery between Jan. 1 and Dec. 31, 2014. We conducted univariate analyses to compare patients with and without complications. We performed a sensitivity analysis examining the mortality rate after serious complications (Clavien-Dindo score 3 or 4) that required a surgical intervention or specialized care (e.g., admission to intensive care unit).RESULTS:A total of 2595 patients were included in the study cohort. Of the 206 patients who died within 30 days, 145 (70.4%) experienced a complication before their death. Overall, the mortality rate after any surgical complication (i.e., FTR) was 16.0%. Ranking of sites by the traditional outcomes of complication and mortality rates differed from the ranking when FTR rate was included in the assessment.CONCLUSION:There was variability in FTR rates across EGS services in Canada, which suggests that there is opportunity for ongoing quality-improvement efforts. This study provides FTR benchmarking data for Canadian EGS services.

Background: The COVID-19 pandemic has been linked to increased mental health issues and interpersonal violence. Both psychiatric diagnoses and young males are overrepresented in the trauma population. Our objective was to characterize injury characteristics and their relationship to psychiatric diagnoses after the COVID-19 lockdown at a trauma centre in Edmonton, Alberta. Specifically, we queried relationships between gender, age, length of stay and intentionally violent injuries, and we reviewed access to inpatient and outpatient mental health and addiction resources. Method(s): We performed a retrospective chart audit for trauma patients aged 18-64 years admitted to the University of Alberta Hospital Trauma Service from June 1 to Aug. 31, 2020. Variables included demographics, injury characteristics, psychiatric history, substance use disorder history and presence of psychiatry and addictions consultations. Treatment plans and follow-up were assessed. Frequencies and basic descriptives were calculated. Univariate analyses were performed to identify relationships between psychiatric or addiction diagnosis (or both) and injury patterns. Result(s): A total of 176 patients met the inclusion criteria. Patients were young (mean age 39.7 yr) and male (73%), and blunt injury was most common (82%). Sixty-three patients (36%) had a psychiatric (29 patients) or addiction (59 patients) history. Twenty-eight patients (15%) received consults to the psychiatry service. At discharge, follow-up included mental health team (10 patients, 36%), family physician (2 patients, 7%) or self-referral resources (8 patients, 29%). Eight patients were not provided follow-up. Fifty-nine patients (34%) had 1 or more addictions history. Nineteen patients (32%) received consultations to psychiatry (18 patients) or addictions (1 patient). Otherwise, 6 patients (10%) were provided community resources at tertiary survey, 6 patients (10%) declined offered resources and 6 patients (10%) had traumatic brain injury (addiction resources deferred). Twenty-five patients (42%) either were not offered resources or documentation was unclear. On univariate analysis of patients with psychiatry consult, age was similar, but females were more likely to be represented (42% v. 24%, p = 0.06). Average length of stay was 17 days versus 9.7 days (p = 0.05). Having a psychiatric consultation or addictions history (or both) was associated with a violent mechanism of injury (35% v. 18%, p < 0.02). Conclusion(s): Over one-third of trauma patients aged 18-64 years had a psychiatric or addiction history (or both) and were significantly more likely to have a violent injury mechanism. Psychiatric consultation was common, more so in female patients, and linked to increased length of stay. Community follow-up was suboptimal, especially for patients with addiction history. Resource access and provision must be optimized to improve care, reduce recidivism and target interpersonal violence during this time of increased individual and system stress..

Mesh infection after abdominal wall reconstruction is a rare and usually devastating complication. Herein, we describe a unique case of a delayed and non-lethal Candida albicans mesh infection after abdominal wall reconstruction with placement of a biologic graft impregnated with antibiotics. Mesh explantation was not required, and the wound healed by secondary intention. This work suggests that locally delivered antibiotics may change the culprit microbes of skin infections to more unusual species such as Candida spp. Future research is required to study the effect of including antifungal agents in the locally delivered antimicrobials for abdominal wall reconstructions with biological meshes.

# Perceptions of a trauma team regarding in situ simulation {#article-title-2} In situ simulation shows promise as an effective training tool for trauma; however, its disruptive nature is a major downside. Although the benefits of in situ simulation in trauma have been described, the potential

s 2021 November 25;64 (6 Suppl 1) DOI: 10.1503/cjs.018821 Post-Pandemic and Beyond Virtual Conference Abstracts

Implication Statement The Department of Critical Care at Dalhousie University developed a smartphone app to improve the quality of learner orientation to the intensive care unit (ICU). The app increased satisfaction with orientation and was perceived as useful. It was ranked as the second most valued resource for orientation after other residents. There is potential to improve the experience of learners with this popular technology.

BACKGROUND:Access to the operating room (OR) is variable among emergency general surgery (EGS) services, with some having dedicated EGS ORs, and others only a shared queue. Currently in Canada, only a limited number of acute care surgery services have dedicated daytime operating room (OR) access; hence, we aimed to describe the burden of after-hours EGS operating in Canada and differences associated with OR access. METHODS:In this multicentre retrospective cohort study, we used data from a previously conducted study designed to evaluate nonappendiceal, nonbiliary disease across 8 Canadian hospitals. We performed a secondary analysis to describe booking priorities and timing of operative interventions, compare sites with and without access to a dedicated EGS daytime OR, and identify differences in morbidity and mortality based on timing of operative intervention. RESULTS:Among 1244 patients, operations were performed during weekday daytime in 521 cases (41.9%), in the evening in 279 (22.4%), on the weekend in 293 (23.6%) and overnight in 151 (12.1%). Operating room booking priority was more than 2 hours to 8 hours in 657 cases (52.8%), more than 8 hours to 24 hours in 334 (26.9%) and more than 24 hours to 48 hours in 253 (20.3%). Substantial variation in booking priority was observed for the same preoperative diagnoses. Sites with dedicated EGS ORs performed a greater proportion of cases during daytime versus overnight compared to sites without dedicated EGS ORs (198/237 [83.5%] v. 323/435 [74.2%], p = 0.006). No significant differences in outcome were found between cases performed during the daytime, evening and overnight. CONCLUSION:We found considerable variation in OR booking priority within the same preoperative diagnoses among EGS patients in Canada. Sites with dedicated EGS ORs performed more cases during weekday daytime compared to sites without dedicated EGS ORs; however, this study showed no evidence of compromised outcomes based on OR timing.