Postoperative Opioid Use Using Enhanced Recovery After Surgery Guidelines for Benign Gynecologic Procedures

Abstract

Study objective: To evaluate opioid use after benign gynecologic surgery after implementation of Enhanced Recovery After Surgery (ERAS) opioid prescribing recommendations.

Design: A prospective cohort study.

Setting: An academic tertiary care hospital.

Patients: All patients undergoing elective benign gynecologic surgery at a large academic institution between August 2017 and December 2017, 1 year after ERAS postoperative opioid prescribing recommendations were implemented for the benign gynecologic surgery department.

Interventions: A chart review determining opioid prescription quantity and a patient telephone survey 7 days after surgery were both performed. Total opioid use was calculated. Physician adherence to the institution's ERAS postoperative opioid prescribing recommendations after benign gynecologic surgery was then determined. Patients were classified as either in the physician adherent to ERAS group or the physician nonadherent to ERAS group. After this stratification, patients' total opioid use within each group was then compared.

Measurements and main results: A total of 241 consecutive benign gynecologic surgical procedures were reviewed. Opioids were prescribed for outpatient postoperative pain management in 186 (77.2%) of these procedures. Physician adherence to the ERAS postoperative opioid prescribing recommendations occurred in 150 (62.2%) of all surgical cases. The telephone survey was completed by 144 (59.8%) patients 7 days after their surgery. Among survey participants, a total of 13 783.5 morphine milligram equivalents (MMEs) or 64.7% of all opioids prescribed were unused 7 days after surgery. This is equivalent to 1838 oxycodone 5-mg tablets unused by the end of the study period. For all surgical procedure types, the ERAS-nonadherent group was prescribed statistically significantly more opioids per patient than the ERAS-adherent group (246.2 ± 22.8 MME vs 81.1 ± 6.2 MME, p < .005), resulting in more opioids unused among the ERAS-nonadherent group. Consequently, the ERAS-nonadherent group contributed 63.5% (8747.5 MMEs) of the total unused opioids by the end of the study period despite only making up 39.6% of the completed patient surveys.

Conclusion: Patients require significantly less opioids after benign gynecologic surgery than they are being prescribed. Physician adherence to the ERAS postoperative opioid recommendations is suboptimal and contributes significantly to the quantity of unused opioids after surgery for benign gynecologic indications. Almost two thirds of all opioids prescribed are not used by 1 week after benign gynecologic surgery.

Keywords: Enhanced Recovery After Surgery; Gynecologic surgery; Opioids.