• Pain physician · Sep 2015

    Incidence and Demographics of Post-Operative Naloxone Administration: A 13-Year Experience at a Major Tertiary Teaching Institution.

    • Yury Khelemsky, Rishi Kothari, Neville Campbell, and Shahbaz Farnad.
    • Icahn School of Medicine at Mount Sinai Department of Anesthesiology Division of Pain Medicine, New York, NY.
    • Pain Physician. 2015 Sep 1; 18 (5): E827-9.

    BackgroundPerioperative use of opioids is associated with the risk of opioid-induced respiratory depression. Naloxone is a competitive opioid antagonist typically administered to reverse opioid-induced respiratory depression. Postoperative administration of naloxone may be considered a proxy for significant postoperative opioid-induced respiratory depression and data regarding its use may be utilized as a quality measure. Few large studies have been done to characterize the population and define an incidence of naloxone recipients in the postoperative inpatient setting.ObjectivesWe aimed to characterize the demographics of patients receiving postoperative naloxone, as well as the incidence of administration in the first 72 post-operative hours at a large urban academic medical center in the United States.Study DesignThis is a retrospective cohort study.SettingMajor urban tertiary teaching institution.MethodsThe robust electronic record database of The Department of Anesthesiology at The Icahn School of Medicine at Mount Sinai, as well as the institution's data warehouse were instrumental in allowing almost 450,000 surgical cases performed between 2001 and 2014 to be screened for naloxone administration within the first 72 postoperative hours. Organ harvests, outside of OR intubations, cancelled cases, and patients age less than or equal to 18 were excluded from the total case count.ResultsNaloxone was administered 433 times in a total of 442,699 postoperative cases. This yielded an incidence of 0.1%. Additionally, the demographics of the group receiving naloxone were described. The mean age was 60, mean body mass index (BMI) was 27, 60% were women, and the mean American Society of Anesthesiologists (ASA) status was 3. Average time to naloxone administration was 21 hours (standard deviation 7) after surgery. Thirteen percent of the cases were emergent. Breakdown of anesthetic technique revealed that 81% of the cases were performed under general anesthesia, 7% with monitored anesthesia care (MAC), and 12% under neuraxial anesthesia. This study lays the groundwork for further elucidating risk factors for postoperative administration of naloxone.LimitationsThis is a retrospective study.ConclusionThe overall incidence of postoperative naloxone administration over a 13 year period in approximately 450,000 patients was 0.1%. Demographics of this group were older, ASA 3 women, qualifying as overweight, but not obese, undergoing elective surgery with a general anesthetic technique. Average time to administration was 21 hours postoperatively.

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