Impaired Mobility, ASA Status and Administration of Tramadol are Risk Factors for Postoperative Delirium in Patients Aged 75 Years or More After Major Abdominal Surgery

Abstract

PD is a frequent and severe postoperative event in elderly patients after major abdominal surgery. A perioperative geriatric assessment should be recommended to patients with an American Society of Anesthesiologists status of 3-4 and preoperative impaired mobility to facilitate the management of PD. In these patients, the postoperative administration of tramadol should be avoided.