IRCT20200427047226N2 IRCT 2020-07-24 Mazandaran University of Medical Sciences Comparative Study of the Effect of maternal voice and midazolam on anxiety, Blood Pressure and Heart Rate in pediatric patients undergoing surgery Comparative Study of the Effect of maternal voice and midazolam on anxiety, Blood Pressure and Heart Rate in pediatric patients undergoing surgery 2020-08-22 anticipated 60 Complete https://irct.ir/trial/49351 interventional Randomization: Not randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Blinding description: The first patient referred as a candidate to participate in the study is randomly assigned to one of the case and control groups, and the next patients are alternately assigned to the case and control groups, so that each group consists of 30 people. However, the person in charge of collecting samples in the operating room is unaware of the type of intervention for the patient. 2 Tonsillectomy surgery. Intervention 1: Intervention group: Group V includes the mother's voice, which is recorded on the mobile phone using smart Voice Recorder 1.7 software. In this study, the purpose is to play the recorded voice of the mother by talking to the child according to the child's habit. Playing the mother's voice for the child from the time the child separates from the parents until the start of the surgery is a normal conversation with the child. It should be noted that the duration of this Voice is between 10 and 15 minutes. Intervention 2: Control group: Group M consists of oral midazolam about half an hour before surgery at a dose of 0.5 mg per kg body weight with 20 cc of water. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information