Lead Sponsor

Centre Hospitalier Universitaire, Amiens

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Age \> 18 years old.
•Non-major scheduled abdominal surgery.
•Patient will receive Sufentanil intraoperatively for induction and maintenance of general anesthesia
•Written or oral informed consent to participate in the study.

•Intraoperative complications that are life-threatening or require the surgical procedure to be discontinued.
•Repeat surgery at the same surgical site in less than 3 months.
•Pregnancy.
•Ambulatory surgery.
•Endoscopic surgery.
•Surgery with loco-regional or perimedullary anesthesia without general anesthesia
•Intraoperative use of an opioid other than Sufentanil.
•Hypersensitivity to sufentanil
•Legally protected patients (under judicial protection, guardianship, curatorship).
•Patients suffering from psychiatric pathologies.
•Patients suffering from neurodegenerative pathologies.
•Patients for whom self-assessment of pain using an numerical rating scale (0-10) is not feasible (language barrier, etc…)