IRCT20160307026950N22 IRCT 2020-07-21 Esfahan University of Medical Sciences Evaluation of the effect of Midazolam and Dexmedetomidine in Laminectomy surgery under spinal anesthesia Comparative study of hemodynamic changes, amount of bleeding, satisfaction of surgeon and patient in the use of two drugs, Midazolam and Dexmedetomedin, in laminectomy surgery under spinal anesthesia 2020-07-22 anticipated 105 Complete https://irct.ir/trial/49404 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization in this study is simple and using a randomization table so that 105 patients with entry conditions are selected and each is given a three-digit code and these codes are entered in the table and then for each From the intervention groups, we randomly select 35 patients using these codes from the table, Blinding description: Drugs and placebo are prepared and coded in the same way. The patient, the injecting specialist, the surgeon, and the respondent are unaware of the contents of the injected drug and are blind. 3 Laminctomy surgery. Intervention 1: Intervention Group A: Patients receive 0.2 mg of Midazolam per kilogram of body weight per hour after spinal anesthesia. Intervention 2: Intervention Group B: Patients receive 0.1 micro grams of Dexmedetomidine per kilogram of body weight per hour after spinal anesthesia. Intervention 3: Control group C: Patients receive 50 ml of normal saline per hour after spinal anesthesia. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information