comparison of blood loss for femoral shaft surgeries between tranexamic acid using and controlled h

background&aim;:blood loss reducing approaches improve surgery outcomes through making appropriate operation field and reducing transfusion needing . in this study two blood loss reducing techniques compare with together. method & material:in a randomized clinical trial study 60 patients candidate for elective femoral shaft operation were included in two groups.the first group induced hypotension had done and the second group received tranexamic acid.anesthesia technique and surgeon were as the same for both groups.bleeding amount calculated on basis site operation and reservoir observing ,pads counting,traputic interventions such as cristaloids or colloids and blood transfusion had done as needed.results evaluated by man-witney exam. results:dry field and surgeons satisfaction were in good score for 23 cases (76%)and21(70%) and average score in groups respectively.blood loss reducing was no significant differences. conclusion:both of studied techniques could reduce bleeding and improve operation field and surgeon satisfaction,meanwhile there was no significant difference in two approaches. key words:controlled hypotension ,tranexamic acid ,bleeding