Role of prophylactic tranexamic acid in reducing blood loss during cesarean section: A double-blind placebo-controlled randomized controlled trial

A BSTRACT Background: Postpartum hemorrhage (PPH) is defined by the World Health Organization as blood loss of ≥500 mL within 24 h of delivery. Globally, hemorrhage accounts for 27.1% of maternal deaths, making it the leading direct cause of maternal death. PPH has been identified in more than two-thirds of reported hemorrhage-related deaths, causing 38% of maternal deaths in India. Tranexamic acid, an antifibrinolytic, has been used to control bleeding after PPH is identified. Materials and Methods: Antenatal women admitted for elective cesarean section were randomized into two arms: the case group (received one gram of tranexamic acid 20 min prior to skin incision) and the control group (received a placebo), each group consisting of 36 participants. Clinical Trials Registry – India (CTRI) registration number – CTRI/2021/02/031579. Results: The mean (±standard deviation [SD]) intraoperative blood loss in the case group was 241.25 (±67.83) mL, and in the control group, it was 344.92 (±146.67) mL ( P = 0.001), while postoperative blood loss did not differ significantly between the groups ( P = 0.1470). In terms of the difference in hemoglobin, there was a significant difference between the two groups ( P = 0.001). No significant maternal or neonatal side effects were found. Conclusion: Preoperative tranexamic acid, when given in elective cesarean section, significantly reduces intraoperative blood loss.