Effectiveness of Combined Preoperative Sublingual Misoprostol and Intravenous Tranexamic Acid on Intraoperative Blood Loss During Elective Caesarean Section: A Randomised, Blinded, Placebo-Controlled Trial
Cureus(2023)
Abstract
Introduction: The objective of this study was to evaluate the effect of preoperative administration of sublingual misoprostol and intravenous tranexamic acid (TXA) on intraoperative blood loss during elective caesarean sections. Methods: This was a double-blinded, randomised, placebo-controlled study involving 116 women scheduled for elective caesarean sections. The treatment arm, group 1 (n=58), received 1000 mg of intravenous tranexamic acid 10-15 minutes before skin incision and 600 mcg of sublingual misoprostol after subarachnoid anaesthesia and before skin incision. Group 2 (n=58) received placebos; both groups had oxytocin injections at the delivery of the placenta. The data were analyzed using IBM & REG; Statistical Package for the Social Sciences (SPSS) version 24 (IBM Corp., Armonk, NY). Results: The primary outcome was the intraoperative blood loss and the difference between preoperative and postoperative hematocrit values in both groups. The mean intraoperative blood loss was significantly lower in the study group than in the control group (308.552 & PLUSMN; 42.991 mL versus 736.414 & PLUSMN; 171.889 mL, p<0.001). The differences between the preoperative and post-operative hematocrit values were also significantly lower in the study group than in the control group (2.212% & PLUSMN; 0.805% versus 5.660% & PLUSMN; 2.496%, p<0.001). Conclusion: Preoperative administration of 1000 mg of intravenous tranexamic acid and 600 mcg of sublingual misoprostol significantly reduced blood loss related to elective caesarean delivery.
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Key words
intraoperative blood loss, tranexamic acid, postpartum haemorrhage, misoprostol, hematocrit value, elective surgery, caesarean section
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