IRCT20180603039966N1 IRCT 2018-08-31 Gorgan University of Medical Sciences Comparison the effect of interathecal injection of pethidine versus bupivacaine on hemodynamics Comparison the effect of interathecal injection of pethidine versus bupivacaine on hemodynamics in hip surgery. 2018-07-23 anticipated 60 Complete https://irct.ir/trial/32051 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Randomization description: Randomization is going to be performed using sequentially numbered, sealed, non-opaque envelopes, Blinding description: Considering the design of the research and the method of randomization and implementation of latent structure, just the supervisor is aware of the syringe contents which is labeled with A or B. In this research, not only the patients, but also the observer(Resident of anesthesiology who perform the block and record the vital signs) and the statistical analyst are also unaware of the syringe contents and which letter(A or B) belong to which intervention groups. So this research is a triple blinded which is performed via sequentially numbered, sealed, non-opaque envelopes. 3 Fractures of the hip and femor. Intervention 1: Intervention group1: patients with hip or femor fractures, who are candidates for surgery, are going to be anesthetized by intrathechal injection of 1 mg/kg Pethidine(Aburaihan pharmaceutical Co.), which is diluted by normal saline until it reaches 2 mL volume. Intervention 2: Intervention group 2: patients with hip or femor fractures, who are candidates for surgery, are going to be anesthetized by intrathechal injection of 2 mL room temperatured Bupivacaine 0.5%(equall to 10 mg of bupivacaine) produced by Mylan Co. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information