The proposal for inclusion is presented by the anesthetist performing the anesthetic consultation. Consent form and explanatory notes are given to the patient. The patient has a period of reflection of at least 48 hours in the case of a scheduled endoscopy for signing the consent. For urgent cases a period of 24 hours will be accepted. The patient is informed that the proceedings will be recorded to allow the calculation of the total number of coughing episodes and their duration.