Subcutaneous and Topical Tranexamic Acid Use During Rhytidectomy.

[OBJECTIVE] Tranexamic acid is a potential rhytidectomy adjunct; however, its route of administration, benefits, and safety remain a topic of debate. The purpose of this study is to analyze the effects of topical and subcutaneous TXA during rhytidectomy.

[METHODS] This is a retrospective, 3-arm analysis of a single surgeon's practice from Aug. 2019 to Nov. 2023. 175 consecutive patients underwent rhytidectomy; 55 did not receive TXA (8/2019-12/2020), 65 received intraoperative topical 25 mg/mL TXA (1/2021-7/2022), and 55 received subcutaneous 5 mg/mL TXA (7/2022-11/2023). Measured outcomes included drain output, bruising, operative time, estimated blood loss, and complications.

[RESULTS] Subcutaneous and topical TXA had similar drain outputs (11.32 mL vs. 12.98 mL, respectively) and bruising scores (20.93 vs. 22.12, respectively). These were significantly less than the control group (24.05 mL, p < 0.001 and 36.28, p < 0.001, respectively). The subcutaneous group operative time (196.13 min) was less than the topical and control groups (212.72 min, p = 0.01; 207.90 min, p = 0.037, respectively) in patients who underwent rhytidectomy with platysmaplasty. EBL and seroma formation in the subcutaneous TXA group were significantly less than the control (23.92 mL vs. 31.67 mL, p = 0.011; 3.60% vs. 18.18%, p = 0.03, respectively). Hematoma, epidermolysis, and infection rates were similar between all groups.

[CONCLUSION] Both topical and subcutaneous TXA use during rhytidectomy are associated with reduced postoperative drain output and bruising without an increased risk of complications. Subcutaneous TXA has the added associated benefit of decreasing operative time, EBL, and seroma formation.

[LEVEL OF EVIDENCE] 3 Laryngoscope, 135:1685-1690, 2025.