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Clinical Trial Summary

In this double blind study, after taking an informed consent, 60 children aged between 7 and 12 years old assigned for tonsillectomy with or without adenoidectomy will be randomly divided into three groups. The first group 30 children will receive 0.025 mg/kg midazolam IV followed by 0.1 mg/kg morphine as a premedication 20 to 30 min before surgical incision. In the second group30 children who will receive the same dose of midazolam followed by saline premedication. All groups will be compared for pain score using visual analog scale (VAS) after recovery and hourly for 8 hours and during first drinking. Heart rate (HR), blood pressure and peripheral oxygen saturation (SPO2) will be recorded before premedication, every 10 min after premedication then every 5 min during and after anesthesia. 6 point sedation score and 4 points behavioral score will be monitored every 5 min after sedation. Four-point wake-up score will be recorded every 5 min. Time of first analgesic requirement and total morphine consumption during the first post-operative 8 hours will be recorded.


Clinical Trial Description

Tonsillectomy is a minor procedure but it causes sever post-operative pain. This pain is difficult to be controlled with opioids because the fear from respiratory depression in pediatric age group with postoperative oral bleeding. The World Heath Organization (WHO) guidelines clearly state that fear and lack of knowledge regarding the use of opioids in children should not be a barrier for effective analgesia (1). ). However, these procedures are usually day case and the use of oral morphine at home may be risky in some groups of this population (2). So decrease the analgesic requirements following these procedures will increase both satisfaction and safety. The trials for the use of morphine as a preemptive analgesia, in awake patient, have been limited to intramuscular (IM) or oral use which has a slow onset and unpredictable absorption. The use of preoperative IV morphine is not popular because of the unpleasant sensations following its administration. I will use small dose midazolam 0.025 gm/kg before morphine to prevent this sensation. In this double blind study, after taking an informed consent, 60 children aged between 7 and 12 years old assigned for tonsillectomy with or without adenoidectomy will be randomly divided into three groups. The first group 30 children will receive 0.025 mg/kg midazolam IV followed by 0.1 mg/kg morphine as a premedication 20 to 30 min before surgical incision. In the second group30 children who will receive the same dose of midazolam followed by saline premedication. Inhalational anesthesia with sevoflurane and nitrous oxide will be used in all patients. Exclusion criteria are those with bronchial asthma, obstructive sleep apnea, allergy to medications used in the study and those who are unfit for surgery or anesthesia for any reason like coagulopathy or chest infection.

All groups will be compared for pain score using visual analog scale (VAS) after recovery and hourly for 8 hours and during first drinking. HR, blood pressure and SPO2 will be recorded before premedication, every 10 min after premedication then every 5 min during and after anesthesia. 6 point sedation score and 4 points behavioral score will be monitored every 5 min after sedation. Four-point wake-up score will be recorded every 5 min. Time of first analgesic requirement and total morphine consumption during the first post-operative 8 hours will be recorded. Base line oxygen saturation, incidence of postoperative hypoxia, bleeding, nausea and vomiting will be recorded. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT02995304
Study type Interventional
Source Dr. Soliman Fakeeh Hospital
Contact Amr A Keera, MD
Phone 00966544639362
Email [email protected]
Status Not yet recruiting
Phase N/A
Start date December 2016

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