Comparison of peritonsillar levobupivacaine and bupivacaine infiltration for post-tonsillectomy pain relief in children: placebo-controlled clinical study.

Objectives: To compare the effects of preincisional peritonsillar infiltration of levobupivacaine and bupivacaine on post-tonsillectomy pain in children.

Methods: Sixty children undergoing elective tonsillectomy or adenotonsillectomy were randomly allocated into three groups before tonsillectomy: peritonsillar infiltrations with 0.25% levobupivacaine with 1:200,000 epinephrine (group levobupivacaine, n=20), 0.