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https://www.selleckchem.com/products/Vorinostat-saha.html Tranexamic acid (TXA) has shown to reduce perioperative blood loss after bilateral total knee arthroplasty (TKA). But dosage and schedule of administration are not clear in literature. This study was aimed to compare prospectively blood loss and transfusion requirement in bilateral TKA with 3-dose regimen versus a single intra-operative dose of intravenous TXA. This prospective non-randomised controlled trial included 25 patients undergoing bilateral simultaneous TKA who received three doses of 1 g intravenous TXA (group 1). First dose was given prior to deflation of the tourniquet, followed by two more doses 6 h apart. The control group included 25 matched patients (group 2) receiving a single dose of 1 g intravenous TXA just prior to deflation of the tourniquet. Mean drop in haemoglobin was less in group 1 as compared to group 2, but this difference was not statistically significant (2.51 vs 2.93g/dL,  = 0.210). Similarly mean drop in haematocrit was more in group 2 as compared to group 1, though it was not statistically significant (9.34 vs. 9.18,  = 0.868). The need for blood transfusions was more in group 2 compared to group 1, but this difference was not statistically significant (  = 0.601). Higher frequency of ecchymosis around the surgical site was noted in group 2 as compared to group 1, for which prophylactic low-molecular-weight heparin had to be stopped post-operatively, but this difference was not statistically significant (  = 0.065). The study has failed to show any significant beneficial effect of three doses of TXA in TKA as compared to a single dose. Though a trend towards reduction in mean haemoglobin drop and decreased need for stopping LMWH in post-operative period was seen, the results were not statistically significant. II, prospective non-randomised controlled trial. II, prospective non-randomised controlled trial. Hip hemiarthroplasty (HA) is a standard surgical procedure for elderly

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