الفهرس 
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Abstract
Tonsillectomy is one of the most frequently performed ambulatory surgical procedures in children. The introduction of an electro-dissection surgical technique has virtually eliminated immediate postoperative hemorrhage. However, it may cause more pain, discomfort and poor oral intake due to more local inflammation, nerve irritation, and laryngeal muscle spasm. Reduction of pain after surgery IS an important part of the management of tonsillectomy patients. Postoperative pain control is especially difficult in children who often refuse oral, intramuscular, or rectal administration of drugs. A technique of peritonsillar infiltration with local anesthetics was adopted to overcome this obstacle. The drug commonly used in perisurgical analgesia is bupivacaine, which is a long- acting potent local anesthetic agent.