Surgical safety checklist compliance process as a moral hazard: An institutional ethnography.

BACKGROUND: Charting is an essential component of professional nursing practice and is arguably a key element of patient safety in surgery: without proper, objective, and timely documentation, both benign and tragical errors can occur. From surgery on wrong patients to wrong limbs, to the omission of antibiotics administration, many harms can happen in the operating room. Documentation has thus served as a safeguard for patient safety, professional responsibility, and professional accountability. In this context, we were puzzled by the practices we observed with respect to charting compliance with the surgical safety checklist (SSC) during a study of surgical teams in a large, urban teaching hospital in Canada (pseudonym 'C&C'). METHODS: This article leverages institutional ethnography and a subset of data from a larger study to describe and explain the social organisation of the system that monitored surgical safety compliance at C&C from the standpoint of operating room nurses. This data included fieldnotes from observations of 51 surgical cases, on-the-spot interviews with nurses, formal interviews with individuals who were involved in the design and implementation of the SSC, and open-ended questions from two rounds of survey of OR teams. FINDINGS: We found that the compliance form and not the SSC itself formed the basis for reporting. To meet hospital accuracy in charting goals and legislated compliance documentation reporting requirements nurses 'pre-charted' compliance with the surgical checklist. The adoption of this workaround technically violated nursing charting principles and put them in ethically untenable positions. CONCLUSIONS: Documenting compliance of the SSC constituted a moral hazard, constrained nurses' autonomy and moral agency, and obscured poor checklist adherence. The findings highlight how local and extra local texts, technologies and relations create ethical issues, raise questions about the effectiveness of resulting data for decision-making and contribute to ongoing conversations about nursing workarounds.

The ritualisation of the surgical safety checklist and its decoupling from patient safety goals.

Patient harm, patient safety and their governance have been ongoing concerns for policymakers, care providers and the public. In response to high rates of adverse events/medical errors, the World Health Organisation (WHO) advocated the use of surgical safety checklists (SSC) to improve safety in surgical care. Canadian health authorities subsequently made SSC use a mandatory organisational practice, with public reporting of safety indicators for compliance tied to pre-existing legislation and to reimbursements for surgical procedures. Perceived as the antidote for socio-technical issues in operating rooms (ORs), much of the SSC-related research has focused on assessing clinical and economic effectiveness, worker perceptions, attitudes and barriers to implementation. Suboptimal outcomes are attributed to implementations that ignored contexts. Using ethnographic data from a study of SSC at an urban teaching hospital (C&C), a critical lens and the concepts of ritual and ceremony, we examine how it is used, and theorise the nature and implications of that use. Two rituals, one improvised and one scripted, comprised C&C's SSC ceremony. Improvised performances produced dislocations that were ameliorated by scripted verification practices. This ceremony produced causally opaque links to patient safety goals and reproduced OR/medical culture. We discuss the theoretical contributions of the study and the implications for patient safety.

Alveolar Echinococcus in a 70-year-old man in Ontario.

Background: Alveolar echinococcus, caused by the tapeworm Echinococcus multilocularis, mimics hepatic malignancy, and carries a mortality rate exceeding 90% in untreated patients. Methods: Diagnosis of E. multilocularis infection is established through clinical, radiographic, and microbiological assessments. Currently available laboratory diagnostics in Ontario are fresh tissue microscopy and histopathology. However, genus-specific Echinococcus enzyme-linked immunosorbent assay (ELISA) serology as well as confirmatory testing with species-specific serology and E. multilocularis polymerase chain reaction (PCR) can be obtained from external reference laboratories. Results: The article presents the first case report of human alveolar echinococcus in Ontario. We outline the multidisciplinary approach of diagnosis as well as surgical and medical management of E. multilocularis infection in a 70-year-old man in Ontario. We describe prior literature of alveolar echinococcus in Canadian settings and highlight its emerging nature with recent human case clusters in the Prairies and reports of E. multilocularis in recent veterinary literature in Ontario. Conclusion: E. multilocularis is an emerging parasitic infection in Canadian settings including Ontario. Clinicians should be aware of the emergence of this invasive infection, especially in those with close contact to canids.

Historique: Causée par le ténia Echinococcus multilocularis, l'échinococcose alvéolaire, qui imite le cancer du foie, est associée à un taux de décès de plus de 90 % chez les patients non traités. Méthodologie: Le diagnostic d'infection par l'E multilocularis est posé par une évaluation clinique, radiographique et microbiologique. La microscopie sur tissus frais et l'histopathologie sont les diagnostics microbiologiques actuellement offerts en Ontario. Cependant, il est possible d'obtenir une analyse sérologique par la méthode d'immunoabsorption enzymatique (ELISA) spécifique du genre Echinococcus ainsi que des tests de confirmation par analyse sérologique spécifique à l'espèce et par amplification en chaîne par polymérase (PCR) de l'E multilocularis auprès de laboratoires de référence externes. Résultats: L'article présente le premier rapport de cas d'échinococcose alvéolaire humaine en Ontario. Les chercheurs soulignent l'approche multidisciplinaire du diagnostic, de même que la prise en charge chirurgicale et médicale de l'infection à E multilocularis chez un homme de 70 ans de l'Ontario. Ils décrivent les publications scientifiques antérieures sur l'échinococcose alvéolaire au Canada et soulignent l'émergence de cette maladie parasitaire dans une récente grappe de cas humains des Prairies, de même que les comptes rendus de cas d'E multilocularis dans les récentes publications vétérinaires de l'Ontario. Conclusion: L'E multilocularis est une infection parasitaire en émergence au Canada, y compris en Ontario. Les cliniciens devraient être informés de l'émergence de cette infection invasive, notamment chez les personnes en contact étroit avec des canidés.

It's not the arrow, it's the archer: the role of the surgeon leader in a safety driven-era.

BACKGROUND: In an era where team communication and patient safety are paramount, standardized tools have been deemed critical to safe, efficient practice. In some cases-perhaps most notably in the surgical safety checklist (SSC)-these tools have been elevated as the key to safe patient care. However, effects of the SSC on patient safety in practice remain mixed. We explore the role and impact of the surgeon leader in the use of structured communication tools to understand how surgeon engagement impacts intraoperative teamwork. METHODS: Using a constructivist grounded theory approach, OR staff members (surgeons, anesthetists, nurses and perfusionists) were recruited to participate in a one-on-one semi-structured interview. The interview explored participant experiences working in the OR, focusing on the role and impact of the surgeon as leader. RESULTS: Engaged use of the surgical safety checklist by the attending surgeon had the potential to improve teamwork in the operating room. Surgeons who used the checklist to engage with their team and facilitate group discussion were able to avoid tensions later in the operation typically arising from lack of situation awareness and familiarity with team member experience levels. Surgeons who engaged with the SSC as more than a memory aid were able to foster a better team environment. CONCLUSIONS: Surgeons can harness their role as leader in the operating room by engaging with structured communication tools such as the SSC to foster improved teamwork.

Performance evaluation of a North American center using the established global benchmark for laparoscopic liver resections: A retrospective study.

BACKGROUND: The global benchmark cut-offs were set for laparoscopic liver resection procedures: left lateral sectionectomy, left hepatectomy, and right hepatectomy. We aimed to compare the performance of our North American center with the established global benchmarks. METHODS: This is a single-center study of adults who underwent laparoscopic liver resection between 2010 to 2022 at the Toronto General Hospital. Fourteen benchmarking outcomes were assessed: operation time, intraoperative blood transfusion, estimated blood loss, blood loss ≥500 mL, blood loss ≥1000mL, open-conversion, postoperative length of stay, return to operation, postoperative morbidity, postoperative major-morbidity, 30-day mortality, 90-day mortality, R1 resection, and failure to rescue. Low-risk benchmark cases were defined as follows: patients aged 18 to 70 years, American Society of Anesthesiologist score ≤ 2, tumor size <10 cm, and Child-Pugh score ≤A. Cases involving bilio-enteric anastomosis, hilar dissection, or concomitant major procedures were excluded from the low-risk category. Cases that did not meet the criteria for low-risk selection were considered high-risk cases. RESULTS: A total of 178 laparoscopic liver resection cases were analyzed (109 left lateral sectionectomies, 45 left hepatectomies, 24 right hepatectomies). Forty-four (25%) cases qualified as low-risk cases (23 left lateral sectionectomies, 16 left hepatectomies, 5 right hepatectomies). The postoperative major morbidity and 90-day mortality after left lateral sectionectomy, left hepatectomy, and right hepatectomy for the low-risk cases were 0%, 0%, and 0%, and 0%, 0%, and 0%, respectively. For the high-risk cases post-2017, the outcomes in the same order were 0%, 0%, and 12%; 0%, 0%, and 0%, respectively. For the high-risk cases operated pre2017, the outcomes in the same order were 9%∗, 16%∗, and 18%; 2%∗, 0%, and 9%∗ (asterisks indicate not meeting the global cut-off), respectively. CONCLUSION: A North American center was able to achieve outcomes comparable to the established global benchmark for laparoscopic liver resection.

Contextualizing the tone of the operating room in practice: drawing on the literature to connect the dots.

The study of teamwork in the operating room has made significant strides in uncovering key constructs which shape safe and effective intraoperative care. However, in recent years, there have been calls to understand teamwork in the operating room more fully by embracing the complexity of the intraoperative environment. We propose the construct of tone as a useful lens through which to understand intraoperative teamwork. In this article, we review the literature on culture, shared mental models, and psychological safety, linking each to the construct of tone. By identifying tone as a theoretical orientation to demonstrate the overlap between these concepts, we aim to provide a starting point for new ways to understand intraoperative team dynamics.

Beyond the Surgical Safety Checklist: Using Intraoperative Handoff to Facilitate Team Situation Awareness in the OR.

BACKGROUND: The surgical safety checklist (SSC) has been credited with improving team situation awareness (SA) in the operating room. Although the SSC may support team SA at the outset of the operative case, intraoperative handoff provides an opportunity for either SA breakdown or, more preferably, SA reinforcement. High-functioning surgical teams demonstrate a high level of continued SA, whereas teams deficient in SA are more likely to be affected by surgical errors and adverse events. To date, no interprofessional intraoperative tools exist to support team SA beyond the SSC. METHODS: This study was divided into 2 phases. The first used qualitative methods to (1) characterize intraoperative handoff processes across surgery, nursing, anesthesia, and perfusion, and (2) identify cultural factors that shaped handoff practices. Data for phase one were collected over 38 observation days and 41 brief interviews. Phase 2, informed by phase 1, used a modified Delphi process to create a tool for use during intraoperative handoff. Data were analyzed iteratively. RESULTS: Handoff practices were not standardized and rarely involved the entire team. In addition we uncovered cultural factors-specifically assumptions held by participants-that hindered team communication during handoff. Assumptions included: (1) team members are interchangeable, (2) trained individuals are able to determine when it is appropriate to handoff without consulting the OR team. Despite claims of improved teamwork resulting from the SSC, many participants held a fragmented view of the OR team, resulting in communication challenges during handoff. Findings from both phases of our study informed the development of multidisciplinary intraoperative handoff tools to facilitate shared team situation awareness and a shared mental model. CONCLUSIONS: Intraoperative handoff occurs frequently, and offers the opportunity for either renewed or fractured team SA beyond the SSC.

Germline BRCA2 variants in advanced pancreatic acinar cell carcinoma: A case report and review of literature.

BACKGROUND: Pancreatic acinar cell carcinoma (PACC) is a rare tumor. Up to 45% of PACCs have alterations in the DNA damage repair pathway and 23% harbor rearrangements in the BRAF or RAF1 genes. We present a PACC case with a germline BRCA2 likely pathogenic variant (LPV) to highlight the impact of genomic testing on treatment decisions and patient outcomes. In our larger case series, we provide clinic-based information on additional 10 PACC patients treated in our center. CASE SUMMARY: A 70-year-old male was diagnosed with advanced PACC. At presentation, he was cachectic with severe arthralgia despite prednisolone and a skin rash that was later confirmed to be panniculitis. He was treated with modified FOLFIRINOX (mFFX) with the knowledge of the germline BRCA2 LPV. Following 11 cycles of mFFX, a computed tomography (CT) scan demonstrated significant tumor response in the pancreatic primary and hepatic metastases, totaling 70% from baseline as per Response Evaluation Criteria in Solid Tumors. Resolution of the skin panniculitis was also noted. We identified two additional PACCs with druggable targets in our case series. Our data contribute to practical evidence for the value of germline and somatic profiling in the management of rare diseases like PACC. CONCLUSION: This patient and others in our larger case series highlight the importance of genomic testing in PACC with potential utility in personalized treatment.

Tranexamic acid versus placebo to reduce perioperative blood transfusion in patients undergoing liver resection: protocol for the haemorrhage during liver resection tranexamic acid (HeLiX) randomised controlled trial.

INTRODUCTION: Despite use of operative and non-operative interventions to reduce blood loss during liver resection, 20%-40% of patients receive a perioperative blood transfusion. Extensive intraoperative blood loss is a major risk factor for postoperative morbidity and mortality and receipt of blood transfusion is associated with serious risks including an association with long-term cancer recurrence and overall survival. In addition, blood products are scarce and associated with appreciable expense; decreasing blood transfusion requirements would therefore have health system benefits. Tranexamic acid (TXA), an antifibrinolytic, has been shown to reduce the probability of receiving a blood transfusion by one-third for patients undergoing cardiac or orthopaedic surgery. However, its applicability in liver resection has not been widely researched. METHODS AND ANALYSIS: This protocol describes a prospective, blinded, randomised controlled trial being conducted at 10 sites in Canada and 1 in the USA. 1230 eligible and consenting participants will be randomised to one of two parallel groups: experimental (2 g of intravenous TXA) or placebo (saline) administered intraoperatively. The primary endpoint is receipt of blood transfusion within 7 days of surgery. Secondary outcomes include blood loss, postoperative complications, quality of life and 5-year disease-free and overall survival. ETHICS AND DISSEMINATION: This trial has been approved by the research ethics boards at participating centres and Health Canada (parent control number 177992) and is currently enrolling participants. All participants will provide written informed consent. Results will be distributed widely through local and international meetings, presentation, publication and ClinicalTrials.gov. TRIAL REGISTRATION NUMBER: NCT02261415.

The anatomy of enjoyment: the flow experience and cardiac surgery.

PURPOSE OF REVIEW: In a time of record levels of physician burnout coupled with a global pandemic, protecting physician wellness is critical. The experience of cognitive flow has been found to enhance both wellness and performance. Although flow has been vastly explored in other fields including elite sport, it has not been deeply investigated or applied in cardiac surgery. Here we discuss flow and flow-promoting techniques employed in other fields that may be beneficial within cardiac surgery. RECENT FINDINGS: Flow is a prevalent experience among surgeons, amplified during operations. Possible strategies to cultivate flow may be separated into individual skills training, such as mindfulness practice and stress management, institutional changes, such as ensuring adequate resources and protected spaces, and strategies targeting the intersectionality of individuals and systems, such as how workplace culture shapes an individual's experience. These techniques may be applicable within cardiac surgery, especially in training. SUMMARY: Flow has been identified as a key component of a happy and meaningful life, and a potential protector against burnout. Harnessing the benefits of flow may help promote flourishing, particularly in demanding fields, such as cardiac surgery.

Pulling our lens backwards to move forward: an integrated approach to physician distress.

The medical community has recently acknowledged physician stress as a leading issue for individual wellness and healthcare system functioning. Unprecedented levels of stress contribute to physician burnout, leaves of absence and early retirement. Although recommendations have been made, we continue to struggle with addressing stress. One challenge is a lack of a shared definition for what we mean by 'stress', which is a complex and idiosyncratic phenomenon that may be examined from a myriad of angles. As such, research on stress has traditionally taken a reductionist approach, parsing out one aspect to investigate, such as stress physiology. In the medical domain, we have traditionally underappreciated other dimensions of stress, including emotion and the role of the environmental and sociocultural context in which providers are embedded. Taking a complementary, holistic approach to stress and focusing on the composite, subjective individual experience may provide a deeper understanding of the phenomenon and help to illuminate paths towards wellness. In this review article, we first examine contributions from unidimensional approaches to stress, and then outline a complementary, integrated approach. We describe how complex phenomena have been tackled in other domains and discuss how holistic theory and the humanities may help in studying and addressing physician stress, with the ultimate goal of improving physician well-being and consequently patient care.

"Some version, most of the time": The surgical safety checklist, patient safety, and the everyday experience of practice variation.

BACKGROUND: This study investigated checklist compliance to highlight where assumptions about the Surgical Safety Checklist might not be met in practice. METHODS: We used ethnographic methods to investigate the practice of the Surgical Safety Checklist in one hospital. Fifty-one observation days, eight semi-structured interviews, and two surveys of operating room staff over two years were conducted. Data were collected and analyzed iteratively. RESULTS: Despite the near 100% compliance rates reported to the Ministry of Health, practice of the Surgical Safety Checklist varied widely: 82% of Briefings, 76% of Time-Outs, and 22% of Debriefings included some sort of team huddle. Gaps between policy and practice were identified at four different levels: compliance with the stages and items; responsibility for the checklist; documentation of adherence; and interprofessional teamwork. CONCLUSIONS: Checklist compliance data are insufficient to understand how complex interventions impact care delivery. Greater and continued attention to practice in healthcare is needed.

Long-term outcomes of laparoscopic liver resection for hepatocellular carcinoma: A propensity score matched analysis of a high-volume North American center.

BACKGROUND: Laparoscopic liver resections for malignancy are increasing worldwide, and yet data from North America are lacking. We aimed to assess the long-term outcomes of patients undergoing laparoscopic liver resection and open liver resection as a treatment for hepatocellular carcinoma. METHODS: Patients undergoing liver resection for hepatocellular carcinoma between January 2008 and December 2019 were retrospectively studied. A propensity score matching was performed using patient demographics, laboratory parameters, etiology of liver disease, liver function, and tumor characteristics. Primary outcomes included overall survival and cumulative incidence of recurrence. Kaplan-Meier and competing risk cumulative incidence were used for survival analyses. Multivariable Cox regression and Fine-Gray proportional hazard regression were performed to determine hazard for death and recurrence, respectively. RESULTS: Three hundred and ninety-one patients were identified (laparoscopic liver resection: 110; open liver resection: 281). After propensity score matching, 149 patients remained (laparoscopic liver resection: 57; open liver resection: 92). There were no significant differences between groups with regard to extent of hepatectomy performed and tumor characteristics. The laparoscopic liver resection group experienced a lower proportion of ≥Clavien-Dindo grade III complications (14% vs 29%; P = .01). In the matched cohort, the 1-, 3-, and 5-year overall survival rate in the laparoscopic liver resection versus open liver resection group was 90.9%, 79.3%, 70.5% vs 91.3%, 88.5%, 83.1% (P = .26), and the cumulative incidence of recurrence 31.1%, 59.7%, 62.9% vs 18.9%, 40.6%, 49.2% (P = .06), respectively. CONCLUSION: This study represents the largest single institutional study from North America comparing long-term oncologic outcomes of laparoscopic liver resection and open liver resection as a treatment for primary hepatocellular carcinoma. The combination of reduced short-term complications and equivalent long-term oncologic outcomes favor the laparoscopic approach when feasible.

Can preoperative liver MRI with gadoxetic acid help reduce open-close laparotomies for curative intent pancreatic cancer surgery?

OBJECTIVES: To evaluate gadoxetic acid-enhanced liver MRI (EOB-MRI) versus contrast-enhanced computed tomography (CECT) for preoperative detection of liver metastasis (LM) and reduction of open-close laparotomies for pancreatic ductal adenocarcinoma (PDAC). METHODS: Sixty-six patients with PDAC had undergone preoperative EOB-MRI and CECT. LM detection by EOB-MRI and CECT and their impact on surgical planning, open-close laparotomies were compared by clinical and radiology reports and retrospective analysis of imaging by two blinded independent readers. Histopathology or imaging follow-up was the reference standard. Statistical analysis was performed at patient and lesion levels with two-sided McNemar tests. RESULTS: EOB-MRI showed higher sensitivity versus CECT (71.7% [62.1-80.0] vs. 34% [25.0-43.8]; p = 0.009), comparable specificity (98.6%, [96.9-99.5] vs. 100%, [99.1-100], and higher AUROC (85.1%, [80.4-89.9] vs. 66.9%, [60.9-73.1]) for LM detection. An incremental 7.6% of patients were excluded from surgery with a potential reduction of up to 13.6% in futile open-close laparotomies due to LM detected on EOB-MRI only. CONCLUSIONS: Preoperative EOB-MRI has superior diagnostic performance in detecting LM from PDAC. This better informs surgical eligibility with potential reduction of futile open-close laparotomies from attempted curative intent pancreatic cancer surgery.

Fractured in surgery: Understanding stress as a holistic and subjective surgeon experience.

BACKGROUND: Physician stress impacts patient care and provider wellness. Researchers have largely used reductionist approaches to study stress (e.g. focusing on physiology). This study sought to understand surgeons' subjective experiences of stress in the workplace, using a holistic perspective. METHODS: Using a constructivist grounded theory methodology, semi-structured interviews were conducted with 24 staff surgeons at the University of Toronto, purposively sampled for specialties and experience levels. RESULTS: The stress experience was reconceptualized as a variable and multidimensional state of fracture, comprised of physiologic, cognitive, emotional, sociocultural, and environmental facets. CONCLUSIONS: Reconceptualizing surgeon stress as a multidimensional state of fracture may help surgeons recognize the contributing facets and identify appropriate strategies for promoting wellness and optimizing performance.

Mental Skills in Surgery: Lessons Learned From Virtuosos, Olympians, and Navy Seals.

OBJECTIVE: The present study investigated the role of mental skills in surgery through the unique lens of current surgeons who had previously served as Olympic athletes, elite musicians, or expert military personnel. BACKGROUND: Recent work has demonstrated great potential for mental skills training in surgery. However, as a field, we lag far behind other high-performance domains that explicitly train and practice mental skills to promote optimal performance. Surgery stands to benefit from this work. First, there is a need to identify which mental skills might be most useful in surgery and how they might be best employed. METHODS: Using a constructivist grounded theory approach, semi-structured interviews were conducted with 17 surgeons across the United States and Canada who had previously performed at an elite level in sport, music, or the military. RESULTS: Mental skills were used both to optimize performance in the moment and longitudinally. In the moment, skills were used proactively to enter an ideal performance state, and responsively to address unwanted thoughts or emotions to re-enter an acceptable performance zone. Longitudinally, participants used skills to build expertise and maintain wellness. CONCLUSIONS: Establishing a taxonomy for mental skills in surgery may help in the development of robust mental skills training programs to promote optimal surgeon wellness and performance.

Cognitive flow in health care settings: A systematic review.

INTRODUCTION: The state of cognitive flow, colloquially known as being 'in the zone', has been linked with enhanced performance, happiness, career satisfaction and decreased burnout. However, the concept has not been adopted strongly in health care training, continuing professional development, or daily practice. A systematic review with a narrative synthesis was undertaken to map the evidence for flow in health care. METHODS: A search was conducted in MEDLINE, PsycInfo, and EMBASE in July 2019 and updated in October 2020 for manuscripts discussing flow in all health care disciplines. Articles published between 1806 and 13 October 2020 were included. Two authors independently reviewed titles and abstracts (and subsequently full texts where necessary) for inclusion. Disagreements were resolved by consensus. Data were extracted on location, manuscript type, population and context, measures, and key findings. RESULTS: A total of 4923 unique abstracts were initially retrieved, and 15 articles were included in the final review. We report on the experience, benefits and strategies to support flow in health care. Flow may benefit providers by enhancing career enjoyment, wellness and performance, while mitigating exhaustion, burnout, and stress. Although research from other domains has focused on supporting flow through individualised training, our results highlight the importance of system and environmental factors. CONCLUSIONS: Supporting professional and trainee flow in health care requires a holistic approach, including individual training and system-level interventions.

Positron Emission Tomography Combined With Computed Tomography vs. No Positron Emission Tomography Combined With Computed Tomography for the Management of Patients With Resectable Colorectal Cancer Liver Metastases and Synchronous Extrahepatic Disease.

INTRODUCTION: Selected patients with colorectal cancer liver metastases (CRLM) and synchronous extrahepatic disease (EHD) are considered for surgery. OBJECTIVES: To evaluate the change in surgical management and long-term survival (disease-free survival [DFS] and overall survival [OS]) for patients with CRLM and EHD who undergo positron emission tomography combined with computed tomography (PET-CT) vs no PET-CT. METHODS: Patients with CRLM were enrolled in a trial evaluating the effect of PET-CT (vs no PET-CT) on surgical management, DFS, and OS. This is a sub-study of the trial, including only patients with synchronous EHD. Cox proportional hazard models were used to calculate risks for recurrence and death. Survival were described by Kaplan-Meier method and compared with log-rank test. RESULTS: Of 25 patients with EHD (PET-CT arm: 14/270 (5%) and no PET-CT arm: 11/134 (8%)), PET-CT changed surgical management in 14%, all of which avoided liver resection due to more extensive disease. Complete metastasectomy was achieved in 36% (5/14) and 72% (8/11), respectively. Respectively, PET-CT vs no PET-CT had statistically similar median DFS, 5.6 months (95% confidence interval (CI) 3.6-18) vs 7.6 months (95% CI 2.9-15) and median OS, 42 months (95% CI 25-48) vs 29 months (95% CI 17-41). EHD was associated with worse DFS (hazard ratio HR = 1.89, 95% CI 1.41-2.52) and OS (HR = 2.47, 95% CI 1.6-3.83). CONCLUSIONS: Preoperative PET-CT for the management of resectable CRLM did not improve long-term outcomes among patients who had synchronous EHD; however, it changed surgical management in a relatively significant proportion of patients.