Tranexamic Acid in Vaginal Reconstructive Surgery

The intervention of 50 cc TXA (2 mg/mL) local infiltration is determined after carefully reviewing the literature. Scarafoni et al. recommends that the local TXA should not exceed at a concentration of 5-10 mg/mL to avoid cytotoxicity that may affect the wound re-epithelialization (22). In a prospective study on facelift bleeding, Kochuba et al. demonstrates that local TXA (1-2 mg/mL) with total 100 mg and 200 mg TXA safely and effectively decreased bleeding, operating room time, and drain output compared with traditional local anesthetic technique (14). Fathimani et all reports the local use of modified tumescent anesthesia solution with low TXA concentration (2 mg/dL) and total average dosage of TXA ranging 120-1000 mg is safe and promising in achieving less ecchymosis, edema, and seroma in common facial cosmetic surgical procedures (31). With a total dosage of 100 mg TXA and a volume of 50 cc injection, the concentration is calculated to be 2 mg/dL.

The intervention of 50 cc Vasopressin (0.1U/mL) local infiltration is determined from several systematic reviews. Hafidh et al. shows that injection of diluted Vasopressin (3.6 to 10 units) with various concentration during hysterectomy significantly reduces the intraoperative blood loss when compared to placebo, and without increasing the hazard of cardiovascular toxicities. Cui et al. reports similar results, but including other vaginal surgeries. The common preparation for dilute Vasopressin is 0.1 U/mL or 1.0 U/mL from a 1cc vial of 20 U/mL Vasopressin. The advantage of 0.1 U/mL concentration is to avoid a relatively large bolus of concentrated 1.0 U/mL Vasopressin injected intravascularly by accident. A cumulative total dose of 4 to 6 units of Vasopressin administered in a dilute solution is proposed to be an upper limit. Therefore, the cumulative total dose of 5 units Vasopressin from 50 cc (0.1U/mL) is in the safe therapeutic range.