Out-patiente Management for Gangrenous Acute Appendicitis: The PENDI-CSI II Randomized Clinical Trial.

Inclusion Criteria: * Acute gangrenous appendicitis confirmed during surgery. * Patient who meets the criteria to be discharged on an outpatient basis * Signature of informed consent. * Older than 14 years of age Exclusion Criteria: * \- Uncomplicated appendectomy. * Intra-operative purulent or faecaloid peritonitis * Appendicular abscess or plastron diagnosed by imaging. * Paralytic ileus preventing oral tolerance. * Need for placement of abdominal drainage. * ASA IV and some selected ASA III. * Immunosuppression. * Patients with active neoplasia. * Pregnancy. * Doubts in the definitive diagnosis. * Suspicion of inflammatory bowel disease. * No family support. * Failure to sign the informed consent form. * Impossibility to comply with the follow-up.