The Use and Impact of a Decision Support Tool for Appendicitis Treatment.

OBJECTIVE: Since introducing new and alternative treatment options may increase decisional conflict, we aimed to describe the use of the decision support tool (DST) and its impact on treatment preference and decisional conflict. SUMMARY BACKGROUND DATA: For the treatment of appendicitis, antibiotics are an effective alternative to appendectomy, with both approaches associated with a different set of risks (e.g., recurrence vs surgical complications) and benefits (e.g., more rapid return to work vs decreased chance of readmission). Patients often have limited knowledge of these treatment options and decision support tools that include video-based educational materials and questions to elicit patient preferences about outcomes may be helpful. Concurrent to the Comparing Outcomes of Drugs and Appendectomy (CODA) trial, our group developed a DST for appendicitis treatment (www.appyornot.org). METHODS: A retrospective cohort including people who self-reported current appendicitis and used the AppyOrNot DST between 2021-2023. Treatment preferences before- and after- use of the DST, demographic information, and Ottawa Decisional Conflict Scale (DCS) were reported after completing the DST. RESULTS: 8,243 people from 66 countries and all 50 US states accessed the DST. Before the DST, 14% had a strong preference for antibiotics and 31% for appendectomy, with 55% undecided. After using the DST, the proportion in the undecided category decreased to 49% (P<0.0001). 52% of those who completed the Ottawa Decisional Conflict Score (DCS) (n=356) reported the lowest level of decisional conflict (<25) after using the DST; 43% had a DCS score of 25-50, 5.1% had a DCS score of >50 and 2.5% had and DCS score of >75. CONCLUSION: The publicly available DST appyornot.org reduced the proportion that was undecided about which treatment they favored and had a modest influence on those with strong treatment preferences. Decisional conflict was not common after use. The use of this DST is now a component of a nationwide implementation program aimed at improving the way surgeons share information about appendicitis treatment options. If its use can be successfully implemented, this may be a model for improving communication about treatment for patients experiencing emergency health conditions.

Surgeons' knowledge regarding perioperative pain management in patients with opioid use disorder: a survey among 260 members of the American College of Surgeons.

BACKGROUND: Patients with opioid use disorder (OUD) are increasing, challenging surgeons to adjust post-operative pain management guidelines. A literature review identified limited information on how to best care for these patients. The purpose of this study was to determine surgical perioperative management of OUD, challenges, and support needed for optimal care. METHODS: This study utilized an anonymous voluntary survey that was distributed to members of the American College of Surgeons through the association's electronic weekly newsletter. The survey was advertised weekly for three consecutive weeks. The survey included questions regarding surgeons' management of perioperative pain in patients with opioid use disorder and perceived barriers in treatment. RESULTS: A total of 260 surgeons responded representing all specialties except ophthalmology. General surgery (66.5%) and plastic and reconstructive surgery (7.5%) represented the majority of responders. Ninety-five percent of surgeons reported treating a patient who used opioids in the past month and 86% encountered a patient with OUD. Nearly half (46%) reported being uncomfortable managing postoperative pain in patients with OUD. Most (67%) were not aware of any guidelines or standards pertaining to perioperative management of patients with OUD. While consultation was sought by 86% of surgeons, analyses identified lack of timely response and a lack of care coordination among specialists. Lack of knowledge and fear of harm (contributing further to addiction) were the most common themes. CONCLUSION: Nearly half of surgeons report discomfort caring for patients with OUD with the vast majority involving a consulting service to assist with their care. Most surgeons believe that it would be helpful to have guidelines regarding the care of these patients. This provides an opportunity for increased education and training on the perioperative management of patients with OUD and further collaboration with addiction medicine, psychiatry and pain management colleagues.

Learning from the implementation of a surgical opioid reduction initiative in an integrated health system: a qualitative study among providers and patients.

BACKGROUND: Surgical opioid overprescribing can result in long-term use or misuse. Between July 2018 and March 2019, the multicomponent intervention, Minimizing Opioid Prescribing in Surgery (MOPiS) was implemented in the general surgery clinics of five hospitals and successfully reduced opioid prescribing. To date, various studies have shown a positive outcome of similar reduction initiatives. However, in addition to evaluating the impact on clinical outcomes, it is important to understand the implementation process of an intervention to extend sustainability of interventions and allow for dissemination of the intervention into other contexts. This study aims to evaluate the contextual factors impacting intervention implementation. METHODS: We conducted a qualitative study with semi-structured interviews held with providers and patients of the general surgery clinics of five hospitals of a single health system between March and November of 2019. Interview questions focused on how contextual factors affected implementation of the intervention. We coded interview transcripts deductively, using the Consolidated Framework for Implementation Research (CFIR) to identify the relevant contextual factors. Content analyses were conducted using a constant comparative approach to identify overarching themes. RESULTS: We interviewed 15 clinicians (e.g., surgeons, nurses), 1 quality representative, 1 scheduler, and 28 adult patients and identified 3 key themes. First, we found high variability in the responses of clinicians and patients to the intervention. There was a strong need for intervention components to be locally adaptable, particularly for the format and content of the patient and clinician education materials. Second, surgical pain management should be recognized as a team effort. We identified specific gaps in the engagement of team members, including nurses. We also found that the hierarchical relationships between surgical residents and attendings impacted implementation. Finally, we found that established patient and clinician views on opioid prescribing were an important facilitator to effective implementation. CONCLUSION: Successful implementation of a complex set of opioid reduction interventions in surgery requires locally adaptable elements of the intervention, a team-centric approach, and an understanding of patient and clinician views regarding changes being proposed.

Measuring Quality at the Surgeon Level.

Patients expect high-quality surgical care and increasingly are looking for ways to assess the quality of the surgeon they are seeing, but quality measurement is often more complicated than one might expect. Measurement of individual surgeon quality in a manner that allows for comparison among surgeons is particularly difficult. While the concept of measuring individual surgeon quality has a long history, technology now allows for new and innovative ways to measure and achieve surgical excellence. However, some recent efforts to make surgeon-level quality data publicly available have highlighted the challenges of this work. Through this chapter, the reader will be introduced to a brief history of surgical quality measurement, learn about the current state of quality measurement, and get a glimpse into what the future holds.

Development of the Illinois Surgical Quality Improvement Collaborative (ISQIC): Implementing 21 Components to Catalyze Statewide Improvement in Surgical Care.

INTRODUCTION: In 2014, 56 Illinois hospitals came together to form a unique learning collaborative, the Illinois Surgical Quality Improvement Collaborative (ISQIC). Our objectives are to provide an overview of the first three years of ISQIC focused on (1) how the collaborative was formed and funded, (2) the 21 strategies implemented to support quality improvement (QI), (3) collaborative sustainment, and (4) how the collaborative acts as a platform for innovative QI research. METHODS: ISQIC includes 21 components to facilitate QI that target the hospital, the surgical QI team, and the peri-operative microsystem. The components were developed from available evidence, a detailed needs assessment of the hospitals, reviewing experiences from prior surgical and non-surgical QI Collaboratives, and interviews with QI experts. The components comprise 5 domains: guided implementation (e.g., mentors, coaches, statewide QI projects), education (e.g., process improvement (PI) curriculum), hospital- and surgeon-level comparative performance reports (e.g., process, outcomes, costs), networking (e.g., forums to share QI experiences and best practices), and funding (e.g., for the overall program, pilot grants, and bonus payments for improvement). RESULTS: Through implementation of the 21 novel ISQIC components, hospitals were equipped to use their data to successfully implement QI initiatives and improve care. Formal (QI/PI) training, mentoring, and coaching were undertaken by the hospitals as they worked to implement solutions. Hospitals received funding for the program and were able to work together on statewide quality initiatives. Lessons learned at one hospital were shared with all participating hospitals through conferences, webinars, and toolkits to facilitate learning from each other with a common goal of making care better and safer for the surgical patient in Illinois. Over the first three years, surgical outcomes improved in Illinois. DISCUSSION: The first three years of ISQIC improved care for surgical patients across Illinois and allowed hospitals to see the value of participating in a surgical QI learning collaborative without having to make the initial financial investment themselves. Given the strong support and buy-in from the hospitals, ISQIC has continued beyond the initial three years and continues to support QI across Illinois hospitals.

Association between Surgical Technical Skills and Clinical Outcomes: A Systematic Literature Review and Meta-Analysis.

Background: A systematic literature review and meta-analysis was conducted to assess the association between intraoperative surgical skill and clinical outcomes. Methods: Peer-reviewed, original research articles published through August 31, 2021 were identified from PubMed and Embase. From the 1,513 potential articles, seven met eligibility requirements, reporting on 151 surgeons and 17,932 procedures. All included retrospective assessment of operative videos. Associations between surgical skill and outcomes were assessed by pooling odds ratios (OR) using random-effects models with the inverse variance method. Eligible studies included pancreaticoduodenectomy, gastric bypass, laparoscopic gastrectomy, prostatectomy, colorectal, and hemicolectomy procedures. Results: Meta-analytic pooling identified significant associations between the highest vs. lowest quartile of surgical skill and reoperation (OR: 0.44; 95% confidence interval [CI]: 0.23, 0.83), hemorrhage (OR: 0.66; 95% CI, 0.65, 0.68), obstruction (OR: 0.33; 95% CI, 0.30, 0.35), and any medical complication (OR: 0.23, 95% CI, 0.19, 0.27). Nonsignificant inverse associations were noted between skill and readmission, emergency department visit, mortality, leak, infection, venous thromboembolism, and cardiac and pulmonary complications. Conclusions: Overall, surgeon technical skill appears to predict clinical outcomes. However, there are surprisingly few articles that evaluate this association. The authors recommend a thoughtful approach for the development of a comprehensive surgical quality infrastructure that could significantly reduce the challenges identified by this study.

An Evaluation of Peer-Rated Surgical Skill and its Relationship With Detrusor Muscle Sampling in Transurethral Resection of Bladder Tumor.

OBJECTIVE: To assess the reliability of peer-review of TURBT videos as a means to evaluate surgeon skill and its relationship to detrusor sampling. METHODS: Urologists from an academic health system submitted TURBT videos in 2019. Ten blinded peers evaluated each surgeon's performance using a 10-item scoring instrument to quantify surgeon skill. Normalized composite skill scores for each surgeon were calculated using peer ratings. For surgeons submitting videos, we retrospectively reviewed all TURBT pathology results (2018-2019) to assess surgeon-specific detrusor sampling. A hierarchical logistic regression model was fit to evaluate the association between skill and detrusor sampling, adjusting for patient and surgeon factors. RESULTS: Surgeon skill scores and detrusor sampling rates were determined for 13 surgeons performing 245 TURBTs. Skill scores varied from -6.0 to 5.1 [mean: 0; standard deviation (SD): 2.40]. Muscle was sampled in 72% of cases, varying considerably across surgeons (mean: 64.5%; SD: 30.7%). Among 8 surgeons performing >5 TURBTs during the study period, adjusted detrusor sampling rate was associated with sending separate deep specimens (odds ratio [OR]: 1.97; 95% confidence interval [CI]: 1.02-3.81, P = .045) but not skill (OR: 0.81; 95% CI: 0.57-1.17, P = .191). CONCLUSION: Surgeon skill was not associated with detrusor sampling, suggesting there may be other drivers of variability of detrusor sampling in TURBT.

Intraoperative Assessment of Non-Technical Skills for Surgeons (NOTSS) and Qualitative Description of their Effects on Intraoperative Performance.

OBJECTIVE: The aims of this study were (1) to evaluate the feasibility of using the Non-Technical Skills for Surgeons (NOTSS) rating tool in assessing surgeons' non-technical skills behaviors in live operations, and (2) to describe the effect of NOTSS on intraoperative performance. SETTING DESIGN: This study was conducted in an academic hospital in North America. Two observers independently conducted direct non-participant observations using the NOTSS rating tool to assess non-technical skills, and to document examples of effective or ineffective non-technical skills behaviors. Observers took field notes to document non-technical skill gaps that were not captured by the NOTSS rating tool, and situations or scenarios that presented challenges for accurate assessment. Interclass correlation estimates and 95% confidence intervals were calculated to assess the validity of the NOTSS rating tool. Deductive thematic qualitative data analysis was used for field notes and NOTSS behavior descriptions. PARTICIPANTS: Participants were general surgeons performing either minimally invasive (robotic assisted or laparoscopic surgery), or open procedures. RESULTS: We observed 18 surgeries, involving 6 surgeons, 11 residents and one fellow resulting in 37 hours of direct observations. The mean NOTSS score was 3.8 (SD 0.41) for situation awareness, 3.75 (SD 0.47) for decision-making, 3.71 (SD 0.39) for communication and teamwork, and 3.76 (SD 0.38) for leadership. The inter-rater reliability ranged between 0.65 and 0.80 for each NOTSS categories. The observers documented examples of effective non-technical skills behaviors and examples of behaviors that need improvement. Furthermore, we described the effect of each observed behavior on intraoperative performance. One challenge to NOTSS use in live surgery was that observers had to infer situation awareness, decision-making, and coping with pressure as these were not easily observed without attending surgeons articulating their underlying thought process. CONCLUSION: The use of the NOTSS tool in live surgery is a valid and practical tool to document observed behaviors and their effect on intraoperative performance in order to provide constructive feedback to surgeons. One notable limitation is that without specific articulation by the surgeon of their underlying thought process the observer must infer specific elements. By documenting specific real-world events with high inter-rater reliability and adequate surgeon score variation the process can be used to provide useful feedback for improvement.

An estrogen-sensitive fibroblast population drives abdominal muscle fibrosis in an inguinal hernia mouse model.

Greater than 25% of all men develop an inguinal hernia in their lifetime, and more than 20 million inguinal hernia repair surgeries are performed worldwide each year. The mechanisms causing abdominal muscle weakness, the formation of inguinal hernias, or their recurrence are largely unknown. We previously reported that excessively produced estrogen in the lower abdominal muscles (LAMs) triggers extensive LAM fibrosis, leading to hernia formation in a transgenic male mouse model expressing the human aromatase gene (Aromhum). To understand the cellular basis of estrogen-driven muscle fibrosis, we performed single-cell RNA sequencing on LAM tissue from Aromhum and wild-type littermates. We found a fibroblast-like cell group composed of 6 clusters, 2 of which were validated for their enrichment in Aromhum LAM tissue. One of the potentially novel hernia-associated fibroblast clusters in Aromhum was enriched for the estrogen receptor-α gene (Esr1hi). Esr1hi fibroblasts maximally expressed estrogen target genes and seemed to serve as the progenitors of another cluster expressing ECM-altering enzymes (Mmp3hi) and to upregulate expression of proinflammatory, profibrotic genes. The discovery of these 2 potentially novel and unique hernia-associated fibroblasts may lead to the development of novel treatments that can nonsurgically prevent or reverse inguinal hernias.

A Mixed-Methods Evaluation of Clinician Education Modules on Reducing Surgical Opioid Prescribing.

BACKGROUND: In this study, we developed online interactive clinician education modules highlighting best practices to minimize opioid prescribing at discharge after surgery. The modules were implemented as part of a multicomponent quality improvement initiative across a six-hospital health system. This article describes the development and evaluation of this educational intervention. MATERIALS AND METHODS: Clinician education modules targeting surgical prescribers, nurses, and pharmacists were developed and implemented by an interdisciplinary team. Clinicians were invited to participate in an evaluation survey after completing the modules. Survey items assessed clinicians' rating of the module and intention to change clinical practice because of the module. Quantitative and qualitative survey responses were analyzed by the study team. RESULTS: A total of 2119 clinicians completed the module and 1831 of these clinicians (86.4%) completed the survey. Of clinicians completing the survey, 65.6% reported that they intend to change clinical practice after completing the module. Intended changes were related to increased knowledge and awareness, provider empowerment, opioid prescribing practices, nonopioid prescribing practices, and patient education. Many clinicians who indicated they do not intend to change practice reported that their clinical practices were already in line with module recommendations. Some clinicians did not perceive the module to be relevant to their role. CONCLUSIONS: Module completion was associated with the intention to improve clinical practice in areas related to provider empowerment, opioid prescribing, nonopioid prescribing, and patient education. Evaluation data will inform future module improvements. There is an opportunity to ensure that all clinicians, including those who are not prescribers, recognize their role in opioid stewardship.

Association Between Surgeon Technical Skills and Patient Outcomes.

Importance: Postoperative complications remain common after surgery, but little is known about the extent of variation in operative technical skill and whether variation is associated with patient outcomes. Objectives: To examine the (1) variation in technical skill scores of practicing surgeons, (2) association between technical skills and patient outcomes, and (3) amount of variation in patient outcomes explained by a surgeon's technical skill. Design, Setting, and Participants: In this quality improvement study, 17 practicing surgeons submitted a video of a laparoscopic right hemicolectomy that was then rated by at least 10 blinded peer surgeons and 2 expert raters. The association between surgeon technical skill scores and risk-adjusted outcomes was examined using data from the American College of Surgeons National Surgical Quality Improvement Program. The association between technical skill scores and outcomes was examined for colorectal procedures and noncolorectal procedures (ie, assessed on whether technical skills demonstrated during colectomy were associated with patient outcomes across other cases). In addition, the proportion of patient outcomes explained by technical skill scores was examined using robust regression techniques. The study was conducted from September 23, 2016, to February 10, 2018; data analysis was performed from November 2018 to January 2019. Exposures: Colorectal and noncolorectal procedures. Main Outcomes and Measures: Any complication, mortality, unplanned hospital readmission, unplanned reoperation related to principal procedure, surgical site infection, and death or serious morbidity. Results: Of the 17 surgeons included in the study, 13 were men (76%). The participants had a range from 1 to 28 years in surgical practice (median, 11 years). Based on 10 or more reviewers per video and with a maximum quality score of 5, overall technical skill scores ranged from 2.8 to 4.6. From 2014 to 2016, study participants performed a total of 3063 procedures (1120 colectomies). Higher technical skill scores were significantly associated with lower rates of any complication (15.5% vs 20.6%, P = .03; Spearman rank-order correlation coefficient r = -0.54, P = .03), unplanned reoperation (4.7% vs 7.2%, P = .02; r = -0.60, P = .01), and a composite measure of death or serious morbidity (15.9% vs 21.4%, P = .02; r = -0.60, P = .01) following colectomy. Similar associations were found between colectomy technical skill scores and patient outcomes for all types of procedures performed by a surgeon. Overall, technical skill scores appeared to account for 25.8% of the variation in postcolectomy complication rates and 27.5% of the variation when including noncolectomy complication rates. Conclusions and Relevance: The findings of this study suggest that there is wide variation in technical skill among practicing surgeons, accounting for more than 25% of the variation in patient outcomes. Higher colectomy technical skill scores appear to be associated with lower complication rates for colectomy and for all other procedures performed by a surgeon. Efforts to improve surgeon technical skills may result in better patient outcomes.

Preoperative patient education and patient preparedness are associated with less postoperative use of opioids.

BACKGROUND: Because many patients are first exposed to opioids after general surgery procedures, surgical stewardship for the use of opioids is critical in addressing the opioid crisis. We developed a multi-component opioid reduction program to minimize the use of opioids after surgery. Our objectives were to assess patient exposure to the intervention and to investigate the association with postoperative use and disposal of opioids. METHODS: We implemented a multi-component intervention, including patient education, the settings of expectations, the education of the providers, and an in-clinic disposal box in our large, academic, general surgery clinic. From April to December 2018, patients were surveyed by phone 30 to 60 days after their operation regarding their experience with postoperative pain management. The association between patient education and preparedness to manage pain was assessed using χ2 tests. Education, preparedness, and clinical factors were evaluated for association with quantity of pills used using ANOVA and multivariable linear regression. RESULTS: Of the 389 eligible patients, 112 responded to the survey (28.8%). Patients receiving both pre and postoperative education were more likely to feel prepared to manage pain than those who only received the education pre or postoperatively (91% vs 68%, P = .01). Patients who felt prepared to manage their pain used 9.1 fewer pills on average than those who did not (P = .01). Fourteen patients (24%) with excess pills disposed of them. Preoperative education was associated with disposal of excess pills (30% vs 0%, P < .05). CONCLUSION: Exposure to clinic-based interventions, particularly preoperatively, can increase patient preparedness to manage postoperative pain and decrease the quantity of opioids used. Additional strategies are needed to increase appropriate disposal of unused opioids.

Evaluating the implementation and effectiveness of a multi-component intervention to reduce post-surgical opioid prescribing: study protocol of a mixed-methods design.

INTRODUCTION: Opioids prescribed after surgery accounted for 5% of the 191 million opioid prescriptions filled in 2017. Approximately 80% of the opioid pills prescribed by surgical care providers remain unused, leaving a substantial number of opioids available for non-medical use. We developed a multi-component intervention to address surgical providers' role in the overprescribing of opioids. Our study will determine effective strategies for reducing post-surgical prescribing while ensuring adequate post-surgery patient-reported pain-related outcomes, and will assess implementation of the strategies. METHODS AND ANALYSIS: The Minimising Opioid Prescribing in Surgery study will implement a multi-component intervention, in an Illinois network of six hospitals (one academical, two large community and three small community hospitals), to decrease opioid analgesics prescribed after surgery. The multi-component intervention involves four domains: (1) patient expectation setting, (2) baseline assessment of opioid use, (3) perioperative pain control optimisation and (4) post-surgical opioid minimisation. Four surgical specialities (general, orthopaedics, urology and gynaecology) at the six hospitals will implement the intervention. A mixed-methods approach will be used to assess the implementation and effectiveness of the intervention. Data from the network's enterprise data warehouse will be used to evaluate the intervention's effect on post-surgical prescriptions and a survey will collect pain-related patient-reported outcomes. Intervention effectiveness will be determined using a triangulation design, mixed-methods approach with staggered speciality-specific implementation for contemporaneous control of opioid prescribing changes over time. The Consolidated Framework for Implementation Research will be used to evaluate the site-specific contextual factors and adaptations to achieve implementation at each site. ETHICS AND DISSEMINATION: The study aims to identify the most effective hospital-type and speciality-specific intervention bundles for rapid dissemination into our 56-hospital learning collaborative and in hospitals throughout the USA. All study activities have been approved by the Northwestern University Institutional Review Board (ID STU00205053).

Association Between Hospital Safety Culture and Surgical Outcomes in a Statewide Surgical Quality Improvement Collaborative.

BACKGROUND: The "safety culture" within hospital systems is increasingly recognized as important to delivery of high-quality care. We examine the safety culture in a statewide hospital quality improvement collaborative and its associations with surgical outcomes. STUDY DESIGN: A modified Safety Attitudes Questionnaire was sent to administrators, quality improvement teams, nurses, anesthesiologists, and surgeons in 49 hospitals participating in the Illinois Surgical Quality Improvement Collaborative in 2015. Associations between positive safety culture, as measured by percentage of positive responses on the Safety Attitudes Questionnaire, and the following NSQIP 30-day adverse outcomes: hospital-level risk-adjusted morbidity, mortality, death, or serious morbidity and readmission rates. Linear regression models with hospitals clustered by system were used to assess the relationship between safety culture and patient outcomes. RESULTS: Operating room safety culture scores were highest (97.7% positive) compared with the other domains, and ratings of hospital management were lowest (75.9% positive). Hospital administrators consistently had the most positive perception of the safety culture (90.5% positive) and front-line providers were less positive: physicians (85.3%), advanced practice providers (88.1%), and nurses (80%). Teamwork was rated as a strength by patient care providers (physicians 88.3%, advanced practice providers 90.2%, and nurses 82.2%), but was perceived as weakest by administrators. Higher percentage of positive Safety Attitudes Questionnaire responses was significantly associated with lower risk of postoperative morbidity (p = 0.007) and death or serious morbidity (p = 0.04). No significant association between safety culture and the risk of mortality (p = 0.23) or readmissions (p = 0.52) was observed. CONCLUSIONS: Hospital safety culture can influence certain surgical patient outcomes. Improving the safety culture within a hospital can represent a previously unrecognized approach that can be leveraged to strengthen surgical quality improvement efforts at the hospital level.

Minimizing Opioid Prescribing in Surgery (MOPiS) Initiative: An Analysis of Implementation Barriers.

BACKGROUND: The United States is in the midst of an opioid epidemic. In response, our institution developed the Minimizing Opioid Prescribing in Surgery (MOPiS) initiative. MOPiS is a multicomponent intervention including: (1) patient education on opioid safety and pain management expectations; (2) clinician education on safe opioid prescribing; (3) prescribing data feedback; (4) patient risk screening to assess for addictive behavior; and (5) optimizations to the electronic health record (EHR). We conducted a preintervention formative evaluation to identify barriers and facilitators to implementation. MATERIALS AND METHODS: We conducted 22 semistructured interviews with key stakeholders (surgeons, nurses, pharmacists, and administrators) at six hospitals within a single health care system. Interviewees were asked about perceived barriers and facilitators to the components of the intervention. Responses were analyzed to identify common themes using the Consolidated Framework for Implementation Research. RESULTS: We identified common themes of potential implementation barriers and classified them under 12 Consolidated Framework for Implementation Research domains and three intervention domains. Time and resource constraints (needs and resources), the modality of educational material (design quality and packaging), and prescribers' concern for patient satisfaction scores (external policy and incentives) were identified as the most significant structural barriers. Resident physicians, pharmacists, and pain specialists were identified as potential key facilitating actors to the intervention. CONCLUSIONS: We identified specific barriers to successful implementation of an opioid reduction initiative in a surgical setting. In our MOPiS initiative, a preintervention formative evaluation enabled the design of strategies that will overcome implementation barriers specific to the components of our initiative.