Opioid Use after Breast-Conserving Surgery: Prospective Evaluation of Risk Factors for High Opioid Use.

BACKGROUND: Responsible opioid prescribing for postoperative pain control is critical. We sought to identify both patient and surgical factors associated with increased opioid use after breast-conserving surgery (BCS).

METHODS: Patients (N = 316) undergoing BCS were surveyed to determine postoperative opioid use. Univariate and multivariate analyses were used to determine factors contributing to increased opioid use (highest quartile of use). All opioid prescriptions were converted to oral morphine equivalents (OME) for analysis.

RESULTS: The mean opioid prescription was 33.2 OMEs. Fourteen patients (4.4%) did not receive a narcotic prescription at discharge. Seventy-eight patients (24.7%) did not take any opioids after discharge. Those in the highest quartile of use consumed more than 50 OMEs. Surgical factors, such as bilateral oncoplastic surgery (60.8 OMEs vs. 33.1 OMEs, p = 0.0001), axillary lymph node dissection (ALND) (61.5 vs. 30.5, p = 0.0003), and drain use (2 drains 71.1, 1 drain 40.4, no drains 26.2, p = 0.0001), were associated with higher opioid use. In a multivariate analysis, smoking, preoperative opioid use, bilateral oncoplastic surgery, high postoperative reported pain score, placement of at least one surgical drain, and receiving a discharge prescription greater than 150 OMEs were associated with the highest quartile of opioid use.

CONCLUSIONS: Smoking, preoperative opioid use, bilateral oncoplastic surgery, ALND, use of surgical drains, high reported postoperative pain score, and receiving a higher OME discharge prescription are associated with higher postoperative opioid use. Given the wide variability of analgesic needs, these criteria should be used to guide the appropriate tailoring of opioid prescriptions.