Pediatric patients undergoing tonsillectomy and adenoidectomy usually have a high incidence of postoperative EA, which increases the risk of developing postoperative airway obstruction and respiratory depression due to anatomical characteristics of operative location and increased susceptibility to opioid analgesics. the study will compare between nebulized and intravenous bolus of dexmedetomidine as a prophylaxis against postanesthetic emergence agitation in children undergoing tonsillectomy, adenoidectomy or adeno-tonsillectomy procedures.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
120
Children will receive a nebulized dexmedetomidine 2 mic/ kg diluted in 3 ml of 0.9% saline 1 h before induction of anaesthesia by standard hospital jet nebulizer via a mouthpiece with a continuous flow of 100% oxygen at 6 L /min for 10-15 min. Treatment will be stopped when the nebulizer began to sputter. At end of nebulizer administration, they will be observed for 30 min before induction of general anaesthesia. then the children will be transferred to the operation room and will receive intravenous (IV) normal saline 0.9% in 10 ml volume over 10 minutes after anesthesia induction.
Children will receive nebulized 3 ml of 0.9% normal saline 1 h before induction of anaesthesia by standard hospital jet nebulizer via a mouthpiece with a continuous flow of 100% oxygen at 6 L /min for 10-15 min. then the children will be transferred to the operation room and will receive intravenous (IV) dexmedetomidine 1mic/kg diluted in 10 ml of 0.9% saline over 10 minutes after anesthesia induction.
Assiut University
Asyut, Egypt
RECRUITINGpostoperative Emergence agitation will be evaluated using the Paediatric Anaesthesia Emergence Delirium scale
Paediatric Anaesthesia Emergence Delirium (PAED) scale will be used to evaluate emergence agitation upon admission to the PACU (0 min, baseline) and at 5, 10, 20, 30, 45, and 60 min until discharge from the PACU. The highest EA scores observed during this period will be recorded. PAED score ≥ 10 will be considered to be a diagnostic endpoint for the development of agitation.
Time frame: 60 minutes
Postoperative pain
Postoperative pain will be recorded using FLACC scale at 5, 10, 20, 30, 45, and 60 min until discharge from the PACU.
Time frame: 60 minutes
emergence agitation (EA) onset
Emergence agitation onset time was defined as the interval from the extubation to the occurrence.
Time frame: 60 minutes
Emergence Agitation duration
Emergence agitation duration was the time from Emergence agitation onset to its cessation
Time frame: 60 minutes
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