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Women who undergo mastectomy for breast cancer may be prone to prolonged opioid use (POU). However, risk factors for long-term opioid use after mastectomy remain unclear. This study seeks to identify risk factors for POU after mastectomy.A single-institution database was queried for women who underwent mastectomy for breast cancer between January 2016 and December 2017. Patients were stratified based on opioid use 90 or ≥ 90 days after mastectomy or completion of their reconstruction. Clinicopathologic and operative parameters as well as preoperative and postoperative opioid usage were compared.Patients with opioid use ≥ 90 days after last procedure (POU) had a history of preoperative opioid use (29.3% vs 8.2%, p = 0.002), were more likely to have concomitant psychiatric illness (70% vs 35.6%, p 0.001), and had received adjuvant chemotherapy (43.1% vs 24.7%, p = 0.03). Patients with POU also had greater daily opioid doses prescribed upon discharge (59.6 mg vs 44.6 mg, p 0.001). On multivariable analysis, preoperative opioid use (OR 3.61, 95% CI 1.16-11.22, p = 0.03), daily oral morphine equivalents prescribed at discharge (OME-D) (OR 1.02, 95% CI 1.01-1.05, p = 0.003), and psychiatric illness (OR 4.48, 95% CI 1.85-10.89, p 0.001) were independently associated with POU. Among opioid-naïve patients, 37% were found to have POU. Among these patients, OME at discharge (OR 1.02, 95% CI 1.003-1.04, p = 0.02) and psychiatric illness (OR 3.23, 95% CI 1.25-8.31, p = 0.02) independently predicted POU.Preoperative opioid use, psychiatric illness, and daily OME at discharge independently predict POU after mastectomy. |
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