Bupivacaine to Reduce Pain and Narcotic Use After Mohs Micrographic Surgery.

Abstract

Limited data exists for bupivacaine injection after Mohs micrographic surgery (MMS). Evaluate how bupivacaine affects postoperative pain and narcotic use. In this multicenter, single-blinded, prospective randomized controlled trial, patients received bupivacaine or saline (placebo) immediately after MMS with flap reconstructions identified by American Academy of Dermatology expert consensus as high-risk for pain and narcotic use. For 48 hours postoperatively, patients logged analgesic use, pain scores (0-10), and whether pain was controlled. One hundred seventy-four patients were included. Narcotic analgesic use was higher in the placebo group during the first 24 hours (odds ratio 2.18; confidence interval [CI]: 1.08-4.41; p = .03), second 24 hours (odds ratio 2.18; CI: 0.91-5.29; p = .08), and 48 hours combined (odds ratio 2.58; CI: 1.28-5.24; p < .01). Pain scores were lower in the bupivacaine group during the first 8 hours (mean difference 1.6; CI: 0.73-2.38; p < .001). Overall analgesic use (narcotic and non-narcotic) and percentage of patients reporting pain under control were similar between groups. There were no significant differences in demographics or surgical characteristics. No adverse events occurred. Single-dose bupivacaine decreased postoperative pain and narcotic analgesic use after MMS with reconstructions likely to cause significant pain. Bupivacaine may have a role in postoperative pain management and reducing narcotic use in this population.