In a randomized double-blind prospective clinical trial performed in Imam Reza Hospital Emergency Department, 80 infants and children aged 2-10 years with wounds requiring local anesthesia for performing sutures will be included. Prior to the study, parental written informed consents will be obtained. Sampling will be performed confidentially and randomly. Patients will be divided into groups 1 and 2 as follows:
Group 1: patients having received oral diphenhydramine for sedation.
Group 2: patients having received oral ketamine, midazolam, and atropine for sedation.
Medicine acceptance by the child and his/her anxiety will be registered via questioning the parents. If local anesthesia is required, those with anxiety scale of more than 1 will enter the study.
Infiltration of the local anesthetic will be registered based on the tranquility degree every 5 minutes. For scores more than 4, or at least 45 minutes later, the tranquilizer will be administered.
After the patient sitting on the examination bed, nasal mask will be placed. Consciousness status of the patient will be monitored regularly. All the oral administration of the medicines will be performed under the supervision of an emergency medicine. All behavioral patterns of the child including cry, consciousness, and movement throughout the procedure will be registered and evaluated based on the Houpt scale by a third colleague.
In addition to the evaluation of the behaviors of the child, treatment will be performed based on the Houpt scale.
After two weeks from the hospital discharge, the probable behavioral changes within two weeks will be registered via telephone connection with the parents.
The obtained data will be analyzed using SPSS 16 and to the study the relation between the variables, Chi-square and Mann-Whitney U test will be used. A P value less than 0.05 will be considered statistically significant.