Outpatient Left Laparoscopic Colectomy

Inclusion Criteria: * American Society of Anesthesiologists Classification (ASA) score I and II, * Patient with an indication for scheduled left colectomy due to neoplastic (stage 1) or diverticulitis, * Patient residing less than 30 minutes from La Rochelle hospital, * Presence of a companion from the anaesthesia consultation onwards, * Presence of an attendant at the patient's discharge, * Perfect understanding of outpatient care, pathology and surgical procedure of the patient and accompanying person, * Informed of the study. Exclusion Criteria: * ASA score 3 et 4, * Indication for a straight or transverse colectomy, * Neoplasia evolution \> stage 1, * Presence of anticoagulant treatment, * Intraoperative bleeding \> 500ml, * Conversion to laparotomy, * Severe anesthetic complication (Anaphylaxis, Difficult Intubation), * Persons deprived of their liberty by a judicial or administrative decision, * Persons of full age who are subject to a legal protection measure, * Persons unable to consent, * Persons who are not members of or beneficiaries of a social security scheme, * Patient's refusal to participate in the study.