Analgesic protocol
Thirty minutes before the end of the surgery, all patients received 1 g of paracetamol ad then were extubated before being moved to the post-anesthetic care unit (PACU) for close monitoring for 2 hours. In the PACU, intravenous morphine titration (2 mg every 5 min) was performed until the VAS value was less than 30. All patients were admitted for at least 24 hours postoperatively in the ENT department. They all received 1 g of paracetamol systematically every 6 hours during the first 24 hours. Nefopam (NEFOMED 20 mg in 30 minutes) was administered when VAS was greater than 30. An anesthesiologist blinded to the study groups collected intraoperative and postoperative parameters.