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Objective-to overview, compare and generalize results of randomized clinical trials analyzing different oxytocin doses to prevent postpartum hemorrhage, initiate and maintain uterine contraction after Caesarean delivery. Methods-'PubMed', 'EMBASE', 'CENTRAL', and 'CINAHL' electronic databases were searched for clinical trials analyzing the effectiveness of different dose of oxytocin given intravenously during surgery for uterine contraction and to reduce postpartum hemorrhage. A systematic review of relevant literature sources was performed. Results-our search revealed 813 literature sources. A total of 15 randomized clinical trials, comparing different doses of oxytocin bolus and infusion used after caesarean delivery have met the selection criteria. Conclusion-oxytocin bolus 0.5-3 UI is considered an effective prophylactic dose. Recommended effective prophylactic oxytocin infusion dose is 7.72 IU/h, but it is unanswered whether we really need a prophylactic infusion of oxytocin if we choose effective bolus dose size and rate. Adverse hemodynamic effects were observed when a 5 UI oxytocin bolus was used. However, topics such as bolus dose size, infusion dose size and requirement as well as bolus injection rate, still remain unanswered. The doses that are recommended in the guidelines of peripartum hemorrhage prophylaxis are not confirmed by randomized controlled double-blind trials and more research should cover this topic.

Prophylactic Dose of Oxytocin for Uterine Atony during Caesarean Delivery: A Systematic Review