<qa>  What is the common practice in surgery hypnosedation?In the Paris Saint joseph Hospital facility, several anesthesiologists and nurse anesthetists are trained in medical hypnosis. Now, a common practice in surgery hypnosedation inguinal hernia, thyroid and para-thyroid surgery and endoscopy colonoscopy, gastroesophageal gastroduodenal endoscopy .On a period of 3 years, 414 acts were carried out under hypnosedation. When digestive endoscopy adding sedation is not systematic and, if the patient is comfortable enough without conscious sedation, only hypnoanalgesia is used use of hypnosis in the prevention or relief of acute pain or chronic. 