IRCT20170516033992N11 IRCT 2022-07-06 Oroumia University of Medical Sciences Comparison of the postoperative analgesia between the caudal and ilioinguinal/ iliohypogastric blocks Comparison of the postoperative analgesia between the caudal and ilioinguinal/ iliohypogastric blocks in pediatric inguinal hernia repair surgery 2022-08-23 anticipated 60 Complete https://irct.ir/trial/64587 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Other, Randomization description: Patients will be divided into two groups using block randomization based on generated numbers by Random allocation software. Thus, in this software, first, the number of groups and the total number of the sample size will be entered, and then in the block section, the Block randomization method will be selected. Patients will be allocated to one of two block methods based on generated numbers, Blinding description: The study will be conducted as a double-blind clinical trial. The patient and the researcher who will be evaluating the outcomes will be blind to the allocation of patients into two blocks. Blocks will be performed by an anesthesiologist (other than the outcome assessor) and the name of blocks will be encoded with the letters A and B. 3 Postoperative pain. Intervention 1: Intervention group: group 1: Patients will be under general anesthesia with midazolam 0.05 mg/kg, fentanyl 1 microgram/kg, lidocaine 1 mg/kg, and propofol 3 mg/kg. Then, the caudal block will be performed using a 22-gauge needle from the sacral hiatus space with 1 ml/kg bupivacaine 0.2% and epinephrine 5 micrograms/kg at the lateral decubitus position before surgery. Intervention 2: Intervention group: group 2: Patients will be under general anesthesia with midazolam 0.05 mg/kg, fentanyl 1 microgram/kg, lidocaine 1 mg/kg, and propofol 3 mg/kg. Then, an ilioinguinal/iliohypogastric block will be performed with 0.1 cc/kg of bupivacaine 0.2% and epinephrine 5 micrograms/kg before surgery. No - There is not a plan to make this available Justification or reason for not sharing IPD is Confidentiality of patient information