Postdischarge Nonsteroidal Anti-Inflammatory Drugs Are not Associated with Risk of Hematoma after Lumpectomy and Sentinel Lymph Node Biopsy with Multimodal Analgesia

BACKGROUND: Nonsteroidal anti-inflammatory drugs (NSAIDs) are increasingly used in ambulatory breast surgery. The risk of hematoma associated with intraoperative ketorolac is low, but whether concomitant routine discharge with NSAIDs increases the risk of hematoma is unclear. METHODS: We retrospectively identified patients who underwent lumpectomy and sentinel lymph node biopsy (SLNB), and compared the 30-day risk of hematoma between patients discharged with opioids (opioid period: January 2018–August 2018) and patients discharged with NSAIDs with or without opioids (NSAID period: January 2019–April 2020). The association between study period and hematoma risk was assessed using multivariable models. Covariates included intraoperative ketorolac, home aspirin, and race/ethnicity. During the NSAID period, a survey was used to assess analgesic consumption on postoperative days 1–5. RESULTS: In total, 2724 patients were identified: 858 (31%) in the opioid period and 1866 (69%) in the NSAID period. In the NSAID period, 867 (46%) received NSAIDs and opioids, and 999 (54%) received NSAIDs only. Receipt of intraoperative ketorolac was higher in the NSAID period (78 vs. 64%, P < 0.001). The risks of any hematoma (4.1 vs. 3.6%, P = 0.6) and reoperation for bleeding (0.5 vs. 0.6%, P = 0.8) were similar between groups. Study period was not associated with hematoma risk (odds ratio 0.87, 95% confidence interval 0.56–1.35, P = 0.5). Among survey respondents (41%), nonopioid analgesic consumption did not increase after opioids were removed from the discharge regimen (median, 6 pills/group, P = 0.06). CONCLUSIONS: NSAIDs are associated with a low risk of hematoma after lumpectomy and SLNB, and should be prescribed instead of opioids, unless contraindicated.