An Evaluation of Multisense® to Ensure a Safe Return Home Following High-risk Gastrointestinal Surgery, Compared With Standard Care.

Inclusion Criteria : * Adults (aged 18 and over) * Patients scheduled for gastrointestinal surgery : * Major gastrointestinal cancer surgery (pancreas, liver, stomach, oesophagus, rectum) * Colorectal surgery (rectal resection, surgery on the rectum and anus other than rectal resection, minor or major surgery on the small intestine and colon) * Patients in non-critical care with a high risk of post-surgical complications (ASA score 2 or 3) * Patients who have a personal mobile phone and Wi-Fi connectivity at home * Patients who provide written informed consent to participate in the study * Patients who are members of or beneficiaries of a social security scheme * Patients who are proficient in French Exclusion Criteria : * Patients with a contraindication to the use of the device as described in the instructions for use (in particular: known skin allergy to adhesives or silicone, active implantable medical device such as a pacemaker or defibrillator, need for an MRI scan during the intended use of the device, intended application site of the device being tattooed, infected, ulcerated or damaged) * Any other condition which, in the investigator's opinion, would compromise the patient's safety or prevent compliance with the requirements of the protocol * Pregnant or breastfeeding patient * Adult under legal protection (under guardianship, curatorship or judicial protection) * Patient already participating in a clinical trial