Intravenous Lidocaine in the Prevention of Postoperative Vomiting in Elective Tonsil Surgery

Use of Intravenous Lidocaine in the Prevention of Postoperative Vomiting in Elective Tonsil Surgery, With or Without Adenoids

There some evidence regarding the effect of lidocaine for the prevention of nausea and vomiting in adults.

The investigators want to know whether with intravenous lidocaine a adjunct for general anesthesia for children between 2 and 12 years who are undergoing tonsillectomy, with or without adenoids has the same effect.

Inclusion Criteria:

• Children between 2 and 12 years
• ASA I or II
• Programmed for elective tonsillectomy with or without adenoidectomy under general anesthesia

Exclusion Criteria:

• Obesity, defined as body mass index (BMI) ≥ 95th percentile for age and sex.
• Use of antiemetic drugs during the 24 hours before surgery.
• Gastroesophageal reflux.
• History of allergy to any of the drugs used in the study.
• Down Syndrome.