Topical Tranexamic Acid Does Not Reduce Hematoma in Reduction Mammaplasty: A Double-Blind Randomized Controlled Trial.

Background: Breast reduction mammaplasty is among the most common procedures in plastic surgery, with a 1% to 7% postoperative hematoma incidence reported. Tranexamic acid (TXA) has been shown to reduce perioperative bleeding and need for transfusion when administered intravenously or topically, but it remains underused in plastic surgery. This study aims to investigate whether topical administration of topical TXA reduces postoperative hematoma following breast reduction mammaplasty.

Methods: A double-blind randomized controlled trial of 98 patients (196 breasts) undergoing bilateral primary reduction mammaplasty at a single academic institution was performed. Patients were used as internal matched controls, with one breast randomized to receive 1000 mg of topical TXA before closure, and the other receiving saline. All members of the surgical team and the patient were blinded as to which breast received the study drug. Postoperative complications, including hematoma within 30 days of surgery, drain outputs, and duration of drain use, were compared between treatment and placebo breasts.

Results: The overall hematoma rate was 1.5%. There was no significant association between application of TXA and development of a hematoma ( P = 0.56) or other complications. The hematoma rate of patients enrolled in the trial was similar to the overall rate of hematoma during the study period (1.5% versus 2.4%; P = 0.511). In a multivariate model, TXA was not significantly associated with differences in drain output after controlling for resection weight, age, and duration of drain use ( P = 0.799). No adverse effects or thromboembolic events from TXA were observed.

Conclusion: Topical application of TXA does not decrease the incidence of hematoma following reduction mammaplasty.

Clinical Question/level Of Evidence: Therapeutic, I.