The goal of this clinical trial is to compare in patients who need an implantation of a veinous access device the sedation with anesthesiologic drugs and with hypnosis using virtual reality material. The main question it aims to answer is:

• is hypnosis using virtual reality as safe and powerfull than usual anesthesiologic drugs.

Participants will complete a preoperative and postoperative questionnaire. They will be contacted by phone pre and postoperatively.

If there is a comparison group: Researchers will compare drug induced sedation and hypnosis induced by virtual reality to see if they are similar in efficacy and sides effects.

This study has two arms. All patients has the same preparation to surgery. They had lorazepam 2.5 mg 30 minutes before the surgery. In operative theater, they are randomly chosen between anesthetic protocol (sufentanyl 5mg intravenous) or digital sedation (Sedakit(R) ) with hypnosis induced by virtual reality.

Patients complete an anxiety test (hamilton scale) 2 days before the surgery and 2 days after the surgery. They are called by an external psychiatrist 1 day before the surgery and 3 days after to evaluate the anxiety link to the procedure.

Inclusion Criteria:

• need for a venous device implantation

Exclusion Criteria:

• need for a general anaesthesia
• unability to give oral consent
• under 18 years

an article will be published with the results. the results will probably be exposed in a future congress.

the data will be available after the official publication for one year

official asking and scientific interest in this study.

the participation in one of the 2 arms is determined randomly just before the implantation