Impact on Postoperative Pain of Three Single-use Adult Supraglottic Airway Devices in Short General Anesthetic Under Controlled Ventilation

Inclusion Criteria: * The patient must have given their free and informed consent and signed the consent form * The patient must be a member or beneficiary of a health insurance plan * Adult patients \> 18 * ASA score I-III * Patient scheduled to undergo elective surgery lasting less than two hours under general anaesthetic without tracheal intubation * The subject is participating in an interventional study, or is in a period of exclusion determined by a previous study * The subject refuses to sign the consent * It is impossible to give the subject informed information * The patient is under safeguard of justice or state guardianship * The patient is pregnant or breastfeeding * Emergency surgery * Sore thoat ≤ 1 month * Risk of aspiration of gastric contents * Body mass index (BMI) \> 35 * Patients with expected airway difficulties * Contra-indication for any of the devices (symptomatic hiatal hernias, pathological obesity, poly trauma or serious injury, delayed gastric emptying, use of opiates during fasting) * Patients who are not fasting for routine and emergency anesthesia * Trismus, limited mouth opening, abscess or pharyngoperilaryngeal mass