Study the interest of hypnosis techniques by virtual reality based on the use of a virtual reality headset with the AQUA® application on the reduction of pre-operative stress in patients candidates for total thyroidectomy

Inclusion Criteria:

• Patient> 18 years old
• Man or woman
• Patient candidate for a total thyroidectomy, or a thyroid totalization
• Preoperative Euthyroidism
• Can justify outpatient care: score of the American Society of Anesthesiology (ASA) 1, 2 or 3 stable; accompanied for return at home; can be watched by a loved one the night after returning home; reachable by telephone; living within an hour of transportation from a hospital and having a good level of understanding.
• No history of parathyroid or recurrent pathology
• Signature of informed consent before any specific procedure related to the study
• Subject affiliated with a health security system

Exclusion Criteria:

• Patient with a submerged goiter (lower edge of the thyroid not seen on the preoperative cervical ultrasound)
• Patient with uncontrolled infectious pathology
• Pregnant or breastfeeding woman or lack of contraception during genital activity
• Patient with illnesses or conditions that hinder their ability to understand follow and / or comply with study procedures
• Patient with personality disorders and / or psychiatric pathology
• Patient deprived of liberty or placed under the authority of a guardian