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Yao M, Fang B, Yang J, Wang S, Chen F. Simultaneous determination of 14 analgesics in postoperative analgesic solution by HPLC-DAD and LC-MS/MS. BMC Chem 2024; 18:10. [PMID: 38200560 PMCID: PMC10782708 DOI: 10.1186/s13065-024-01113-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024] Open
Abstract
A green, efficient, sensitive and accurate detection method by HPLC-DAD and LC-MS/MS was developed and validated for the quantification of morphine, hydromorphone, oxycodone, ketamine tramadol, dezocine, ropivacaine, remifentanil, butorphanol, bupivacaine, droperidol, fentanyl, lornoxicam and sufentanil. The 14 mixtures were chromatographed via HPLC-DAD method which employed 0.05 mol/L potassium dihydrogen phosphate solution-acetonitrile as the mobile phase, the analytes were gradient elution on a SinoChrom ODS-BP C18 column with a total separation time of 35 min, and 14 mixtures showed a good linear relationship in the linear range. The Limit of Quantitation (LOQ) ranged from 0.10 to 20.0 µg/mL, the inter-day and intra-day precision of each analyte is within 1.1-2.0% and 0.4-1.3%, and the average absolute recovery of all compounds was above 98%. The LC-MS/MS method was used to successfully separate the 14 mixtures within 10 min which employed 0.1% formic acid-acetonitrile as the mobile phase, the analytes were gradient elution on a ACQUITY UPLC-BEH C18 column with a total separation time of 13 min, and 14 mixtures showed a good linear relationship in the linear range. The LOQ ranged from 0.005 to 0.2 ng/mL, the inter-day and intra-day precision of each analyte is within 1.2-4.1% and 0.6-3.3%, and the average absolute recovery of all compounds was above 93%. The proposed method has been successfully applied in the clinic and provides a strong technical basis for the quantitative detection of these 14 mixtures for detecting drug abuse, and for studying the stability and compatibility of analgesic solutions. The proposed methods were validated against ICH guidelines.
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Affiliation(s)
- Manman Yao
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, 442008, People's Republic of China
- School of Pharmacy, Hubei University of Medicine, Shiyan, Hubei, 442000, People's Republic of China
| | - Baoxia Fang
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, 442008, People's Republic of China
| | - Jinguo Yang
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, 442008, People's Republic of China
| | - Sicen Wang
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, 442008, People's Republic of China.
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, Shanxi, People's Republic of China.
| | - Fuchao Chen
- Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, Hubei, 442008, People's Republic of China.
- School of Pharmacy, Hubei University of Medicine, Shiyan, Hubei, 442000, People's Republic of China.
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, Shanxi, People's Republic of China.
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Walker DM, Shiu-Yee K, Chen S, DePuccio MJ, Jackson RD, McAlearney AS. Community Coalitions' Perspectives on Engaging with Hospitals in Ohio to Address the Opioid Crisis. Popul Health Manag 2022; 25:729-737. [PMID: 36315182 PMCID: PMC10024063 DOI: 10.1089/pop.2022.0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Community coalitions have been leading the multisector response to the opioid epidemic in the Unites States. However, with the medicalization of opioid use disorder and changing health care policies, hospitals have moved to the forefront, becoming more active in collaborating with community coalitions. Little is currently known about how community coalitions view and approach collaborating with hospitals despite its importance for understanding and advancing interorganizational approaches to combating the opioid epidemic. Using data from semistructured interviews (n = 119) conducted from November 2019 to January 2020 as part of the HEALing Communities Study (ClinicalTrials.gov: NCT04111939), the authors examined how community coalition members perceive hospital collaborations and explored the opportunities and challenges of these partnerships. They characterized 3 emergent themes: coalition approaches to collaborating with hospitals, barriers to collaboration, and opportunities for sustainable relationships. This new evidence highlights the value that coalitions place on hospital collaborations, as well as mechanisms that may help support ongoing partnerships.
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Affiliation(s)
- Daniel M. Walker
- Department of Family and Community Medicine, College of Medicine, The Ohio State University, Columbus, Ohio, USA
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Karen Shiu-Yee
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Sadie Chen
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Matthew J. DePuccio
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Rebecca D. Jackson
- Center for Clinical and Translational Science and the Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Ann Scheck McAlearney
- Department of Family and Community Medicine, College of Medicine, The Ohio State University, Columbus, Ohio, USA
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, Columbus, Ohio, USA
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Sabin LL, Mesic A, Le BN, Halim N, Cao CTH, Bonawitz R, Nguyen HV, Larson A, Nguyen TTT, Le AN, Gill CJ. Costs and Cost-Effectiveness of mCME Version 2.0: An SMS-Based Continuing Medical Education Program for HIV Clinicians in Vietnam. GLOBAL HEALTH: SCIENCE AND PRACTICE 2022; 10:GHSP-D-22-00008. [PMID: 36041848 PMCID: PMC9426988 DOI: 10.9745/ghsp-d-22-00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 05/24/2022] [Indexed: 11/15/2022]
Abstract
This cost analysis found that a mobile phone-based continuing medical education (mCME) intervention, involving daily text messages with links to relevant materials, for HIV clinicians in northern Vietnam was relatively low-cost and cost-effective, particularly for future nationwide models. Such mobile approaches to CME are worthy of attention in resource-constrained settings. Background: The Mobile Continuing Medical Education (mCME) 2.0 project was a randomized controlled trial that found that a 6-month text message-based CME intervention improved both the use of online medical training resources and medical knowledge among a cadre of HIV clinicians in Vietnam. This companion study analyzed intervention costs and cost-effectiveness. Methods: We conducted (1) a financial analysis based on costs incurred during the trial’s planning and implementation; (2) an economic analysis to consider resource utilization; and (3) cost-effectiveness analyses to estimate cost inputs relative to impact: increase in self-study (measured by visits to online courses) and increase in knowledge (measured by exam score improvement) (in 2016 US$). Finally, we estimated the economic cost of a 9-month national program and a 10-year scaled-up model (in 2021 US$). Results: The total financial cost of the intervention was US$49,552; the main cost drivers were personnel time (71.4%) and technology inputs (14.9%). The total economic cost was estimated at US$92,212, with the same key cost inputs (representing 77.7% and 8.0%, respectively, of total costs). The financial cost per 10% increase in accessing online courses was US$923, while the cost of improving knowledge, measured by a 10% improvement in mean exam score across the study population, was US$32,057 (US$605 per intervention clinician). The comparable total economic cost of each improvement, respectively, was US$1,770 and US$61,452 (US$1,159 per intervention clinician). A future 9-month national program was estimated to cost US$37,403, while the full 10-year scaled-up program was estimated at US$196,446. Conclusions: This analysis indicates that leveraging mobile technology could be a feasible way to provide distance learning to health professions across Vietnam at a relatively low cost. Given the need for practical ways to expand CME in resource-constrained regions of the world, this approach warrants further study and possible adoption.
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Affiliation(s)
- Lora L Sabin
- Department of Global Health, Boston University School of Public Health, Boston, MA, USA.
| | - Aldina Mesic
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Bao Ngoc Le
- Consulting Research for Community Development, Hanoi, Vietnam
| | - Nafisa Halim
- Department of Global Health, Boston University School of Public Health, Boston, MA, USA
| | - Chi Thi Hue Cao
- Vietnam Administration for AIDS Control, Ministry of Health, Hanoi, Vietnam
| | - Rachael Bonawitz
- Department of Global Health, Boston University School of Public Health, Boston, MA, USA
| | - Ha Viet Nguyen
- Center for Population Research Information and Databases, General Office for Population and Family Planning, Ministry of Health, Hanoi, Vietnam
| | - Anna Larson
- Department of Global Health, Boston University School of Public Health, Boston, MA, USA
| | - Tam Thi Thanh Nguyen
- Center for Population Research Information and Databases, General Office for Population and Family Planning, Ministry of Health, Hanoi, Vietnam
| | | | - Christopher J Gill
- Department of Global Health, Boston University School of Public Health, Boston, MA, USA
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Walker DM, Childerhose JE, Chen S, Coovert N, Jackson RD, Kurien N, McAlearney AS, Volney J, Alford DP, Bosak J, Oyler DR, Stinson LK, Behrooz M, Christopher MC, Drainoni ML. Exploring perspectives on changing opioid prescribing practices: A qualitative study of community stakeholders in the HEALing Communities Study. Drug Alcohol Depend 2022; 233:109342. [PMID: 35151024 PMCID: PMC8957585 DOI: 10.1016/j.drugalcdep.2022.109342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Community-based perspectives are needed to more broadly inform policy-makers, public health practitioners, prescribers, and pharmacists about community-led and broader efforts to reduce opioid overprescribing, and ultimately reduce prescription opioid use disorder, overdoses and fatalities. The aim of this study is to explore community-based perspectives on efforts to change opioid prescribing practices in their communities. METHODS Semi-structured interviews were conducted with 388 community stakeholders across four states (Kentucky, Massachusetts, New York, Ohio) from November 2019 to January 2020 about community approaches and goals of community-led responses to the opioid crisis. Data analysis combined deductive and inductive approaches to identify themes and sub-themes related to improving opioid prescribing practices. RESULTS Three major themes and different subthemes were characterized: (1) acknowledging progress (i.e., healthcare providers being part of the solution, provider education, and prescription drug monitoring programs); (2) emergent challenges (i.e., physician nonadherence with safer opioid prescribing guidelines, difficulty identifying appropriate use of opioids, and concerns about accelerating the progression from opioid misuse to drug abuse); and (3) opportunities for change (i.e., educating patients about safer use and proper disposal of opioids, expanding prescriber and pharmacist education, changing unrealistic expectations around eliminating pain, expanding and increasing insurance coverage for alternative treatment options). CONCLUSIONS Community stakeholders appeared to support specific opportunities to reduce prescription opioid misuse and improve safer prescribing. The opportunities included culture change around pain expectations, awareness of safe disposal, additional provider education, and increased coverage and acceptability of non-opioid treatments.
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Affiliation(s)
- Daniel M. Walker
- Department of Family and Community Medicine, College of Medicine, The Ohio State University, 460 Medical Center Dr., Suite 530, Columbus, OH, 43210, USA,CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA
| | - Janet E. Childerhose
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA,Department of Internal Medicine, College of Medicine, The Ohio State University, Martha Morehouse Pavilion, 2050 Kenny Road, Suite 2428, Columbus, OH, 43221, USA
| | - Sadie Chen
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA
| | - Nicolette Coovert
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA
| | - Rebecca D. Jackson
- Center for Clinical and Translational Science and the Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, The Ohio State University, 376 W. 10 Ave, Suite 205, Columbus, OH, 43210, USA
| | - Natasha Kurien
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA
| | - Ann Scheck McAlearney
- Department of Family and Community Medicine, College of Medicine, The Ohio State University, 460 Medical Center Dr., Suite 530, Columbus, OH, 43210, USA,CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA
| | - Jaclyn Volney
- CATALYST, The Center for the Advancement of Team Science, Analytics, and Systems Thinking in Health Services and Implementation Science Research, College of Medicine, The Ohio State University, 700 Ackerman Road, Suite 4000, Columbus, OH, 43202, USA
| | - Daniel P. Alford
- Grayken Center for Addiction, Clinical Addiction Research and Education Unit, Boston Medical Center and Boston University School of Medicine, 801 Massachusetts Ave, Rm 2060, Boston, MA, 02118, USA
| | - Julie Bosak
- Grayken Center for Addiction, Clinical Addiction Research and Education Unit, Boston Medical Center and Boston University School of Medicine, 801 Massachusetts Ave, Rm 2060, Boston, MA, 02118, USA
| | - Douglas R. Oyler
- Pharmacy Practice and Science Department, College of Pharmacy, University of Kentucky, 780 S. Limestone, Lee T. Todd, Jr. Bldg, Rm 285, Lexington, KY, 40506, USA
| | - Laura K. Stinson
- Pharmacy Practice and Science Department, College of Pharmacy, University of Kentucky, 780 S. Limestone, Lee T. Todd, Jr. Bldg, Rm 285, Lexington, KY, 40506, USA
| | - Melika Behrooz
- Social Intervention Group, Columbia University School of Social Work, 1255 Amsterdam Ave, New York, NY, 10027, USA
| | - Mia-Cara Christopher
- Social Intervention Group, Columbia University School of Social Work, 1255 Amsterdam Ave, New York, NY, 10027, USA
| | - Mari-Lynn Drainoni
- Boston Medical Center and Boston University School of Medicine, Boston, MA, 801 Massachusetts Ave, Rm 2014, Boston, MA, 02118, USA
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5
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Adalbert JR, Ilyas AM. A focus on the future of opioid prescribing: implementation of a virtual opioid and pain management module for medical students. BMC MEDICAL EDUCATION 2022; 22:18. [PMID: 34991556 PMCID: PMC8733773 DOI: 10.1186/s12909-021-03058-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 11/26/2021] [Indexed: 05/05/2023]
Abstract
BACKGROUND The United States opioid epidemic is a devastating public health crisis fueled in part by physician prescribing. While the next generation of prescribers is crucial to the trajectory of the epidemic, medical school curricula designated to prepare students for opioid prescribing (OP) and pain management is often underdeveloped. In response to this deficit, we aimed to investigate the impact of an online opioid and pain management (OPM) educational intervention on fourth-year medical student knowledge, attitudes, and perceived competence. METHODS Graduating students completing their final year of medical education at Sidney Kimmel Medical College of Thomas Jefferson University were sent an e-mail invitation to complete a virtual OPM module. The module consisted of eight interactive patient cases that introduced topics through a case-based learning system, challenging students to make decisions and answer knowledge questions about the patient care process. An identical pre- and posttest were built into the module to measure general and case-specific learning objectives, with responses subsequently analyzed using the Wilcoxon matched-pairs signed-rank test. RESULTS Forty-three students (19% response rate) completed the module. All median posttest responses ranked significantly higher than paired median pretest responses (p < 0.05). Comparing the paired overall student baseline score to module completion, median posttest ranks (Mdn = 206, IQR = 25) were significantly higher than median pretest ranks (Mdn = 150, IQR = 24) (p < 0.001). Regarding paired median Perceived Competence Scale metrics specifically, perceived student confidence, capability, and ability in opioid management increased from "disagree" (2) to "agree" (4) (p < 0.001), and student ability to meet the challenge of opioid management increased from "neither agree nor disagree" (3) to "agree" (4) (p < 0.001). Additionally, while 77% of students reported receiving OP training in medical school, 21% reported no history of prior training. CONCLUSION Implementation of a virtual, interactive module with clinical context is an effective framework for improving the OPM knowledge, attitudes, and perceived competence of fourth-year medical students. This type of intervention may be an important method for standardizing and augmenting the education of future prescribers across multiple institutions.
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Affiliation(s)
- Jenna R Adalbert
- Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, USA.
- Jefferson College of Population Health, Thomas Jefferson University, Philadelphia, PA, USA.
| | - Asif M Ilyas
- Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, USA
- Rothman Orthopaedic Institute Foundation for Opioid Research & Education, Philadelphia, USA
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Bednarczyk EM, Blondell RD, Wahler RG, Fiebelkorn KD, Waghmarae R, Lu C, Rogler BA, Dunn TE. A large‐scale, online, multiprofessional opioid prescriber training program. JOURNAL OF THE AMERICAN COLLEGE OF CLINICAL PHARMACY 2021. [DOI: 10.1002/jac5.1546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Edward M. Bednarczyk
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
| | - Richard D. Blondell
- Department of Family Medicine Jacobs School of Medicine and Biomedical Sciences, University at Buffalo Buffalo New York USA
| | - Robert G. Wahler
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
| | - Karl D. Fiebelkorn
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
| | - Romanth Waghmarae
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
| | - Chi‐Hua Lu
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
| | - Barbara A. Rogler
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
| | - Terry E. Dunn
- Department of Pharmacy Practice School of Pharmacy and Pharmaceutical Sciences, University at Buffalo Buffalo New York USA
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7
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Shallcross ML, Stulberg JJ, Schäfer WLA, Buckley BA, Huang R, Bilimoria KY, Johnson JK. A Mixed-Methods Evaluation of Clinician Education Modules on Reducing Surgical Opioid Prescribing. J Surg Res 2020; 257:1-8. [PMID: 32818777 DOI: 10.1016/j.jss.2020.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/05/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022]
Abstract
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.
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Affiliation(s)
- Meagan L Shallcross
- Department of Surgery and Center for Health Services and Outcomes Research, Surgical Outcomes and Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Jonah J Stulberg
- Department of Surgery and Center for Health Services and Outcomes Research, Surgical Outcomes and Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Surgery, Northwestern Memorial Hospital, Chicago, Illinois
| | - Willemijn L A Schäfer
- Department of Surgery and Center for Health Services and Outcomes Research, Surgical Outcomes and Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Barbara A Buckley
- Performance Improvement, Northwestern Memorial HealthCare, System Clinical Performance, Chicago, Illinois
| | - Reiping Huang
- Department of Surgery and Center for Health Services and Outcomes Research, Surgical Outcomes and Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Karl Y Bilimoria
- Department of Surgery and Center for Health Services and Outcomes Research, Surgical Outcomes and Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Surgery, Northwestern Memorial Hospital, Chicago, Illinois
| | - Julie K Johnson
- Department of Surgery and Center for Health Services and Outcomes Research, Surgical Outcomes and Quality Improvement Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
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