Sam Lahidji1,2, Elizabeth Oliva3, Mary Jarzebowski1,2, Seshadri C Mudumbai4, Tamar Lake1,2, Vijay Krishnamoorthy5, Karthik Raghunathan5,6, William E Bryan6. 1. Veterans Affairs Ann Arbor Healthcare System, Michigan. 2. Department of Anesthesiology, University of Michigan Medical School, Ann Arbor. 3. National Opioid Overdose Education and Naloxone Distribution Coordinator, US Department of Veterans Affairs Office of Mental Health and Suicide Prevention. 4. Anesthesia Service, Veterans Affairs Palo Alto Healthcare System; Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, California. 5. Critical Care and Perioperative Epidemiologic Research Unit, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina. 6. Veterans Affairs Durham Healthcare System, North Carolina.
Abstract
Background: Naloxone prescribing among patients undergoing surgery is not well described. This cohort study was designed to examine patients' risk factors for opioid overdose and their association with naloxone prescribing among veterans undergoing total knee arthroplasty (TKA) after a systemwide Overdose Education and Naloxone Distribution (OEND) initiative. Methods: A retrospective analysis of Veterans Health Administration (VHA) records was performed and consisted of 38,011 veterans undergoing primary TKA from 2013 to 2016. Patient overdose risk was determined using a validated risk index for overdose or serious opioid-induced respiratory depression (RIOSORD) based on patient diagnoses, health care utilization, and prescription drug use. Naloxone dispensing was examined from the year before surgery until 7 days after discharge. These rates were examined the year prior to implementation of a national OEND initiative (2013), the year of implementation (2014), and 2 years following implementation (2015-2016). Results: In 2013, 3.3% of patients presenting for TKA had moderate or high risk for overdose and none were prescribed naloxone. By 2016, after OEND implementation, 2.2% of patients presenting for TKA had moderate or high risk for overdose, but only 10.9% of the moderate-risk and 12.7% of the high-risk patients were prescribed naloxone. Conclusions: Patients presenting for TKA routinely have risk factors for opioid overdose and significant proportions are at moderate or high risk for overdose. Despite this, most patients at moderate and high risk do not receive perioperative naloxone. Risk mitigation strategies using validated tools such as RIOSORD may help identify surgical patients at greatest risk for opioid overdose who could benefit from OEND.
Background: Naloxone prescribing among patients undergoing surgery is not well described. This cohort study was designed to examine patients' risk factors for opioid overdose and their association with naloxone prescribing among veterans undergoing total knee arthroplasty (TKA) after a systemwide Overdose Education and Naloxone Distribution (OEND) initiative. Methods: A retrospective analysis of Veterans Health Administration (VHA) records was performed and consisted of 38,011 veterans undergoing primary TKA from 2013 to 2016. Patient overdose risk was determined using a validated risk index for overdose or serious opioid-induced respiratory depression (RIOSORD) based on patient diagnoses, health care utilization, and prescription drug use. Naloxone dispensing was examined from the year before surgery until 7 days after discharge. These rates were examined the year prior to implementation of a national OEND initiative (2013), the year of implementation (2014), and 2 years following implementation (2015-2016). Results: In 2013, 3.3% of patients presenting for TKA had moderate or high risk for overdose and none were prescribed naloxone. By 2016, after OEND implementation, 2.2% of patients presenting for TKA had moderate or high risk for overdose, but only 10.9% of the moderate-risk and 12.7% of the high-risk patients were prescribed naloxone. Conclusions: Patients presenting for TKA routinely have risk factors for opioid overdose and significant proportions are at moderate or high risk for overdose. Despite this, most patients at moderate and high risk do not receive perioperative naloxone. Risk mitigation strategies using validated tools such as RIOSORD may help identify surgical patients at greatest risk for opioid overdose who could benefit from OEND.
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Authors: Gabriel A Brat; Denis Agniel; Andrew Beam; Brian Yorkgitis; Mark Bicket; Mark Homer; Kathe P Fox; Daniel B Knecht; Cheryl N McMahill-Walraven; Nathan Palmer; Isaac Kohane Journal: BMJ Date: 2018-01-17