Outcomes of regional anesthesia in cancer patientsCata, Juan P.Current Opinion in Anesthesiology: October 2018 - Volume 31 - Issue 5 - p 593–600 doi: 10.1097/ACO.0000000000000636 REGIONAL ANESTHESIA: Edited by Nabil M. Elkassabany Abstract Author InformationAuthors Article MetricsMetrics Purpose of review To summarize the current evidence on the impact of regional anesthesia or analgesia on cancer recurrence. Recent findings Preclinical investigations suggest that regional anesthesia could have a positive impact on reducing cancer growth and progression. Regional anesthesia is also associated with better immunological and stress-related outcomes in patients undergoing major oncological surgery. Most recent retrospective studies do not show any benefit of regional anesthesia or analgesia on cancer recurrence or recurrence-free survival. Summary The available clinical evidence does not support the use of any anesthesia technique to improve the cancer-related survival after major oncological surgery. The results from four randomized controlled trials will shed light on this critical topic in perioperative medicine. Department of Anesthesiology and Perioperative Medicine, The University of Texas –MD Anderson Cancer Center; Anesthesia and Surgical Oncology Research Group, Houston, Texas, USA Correspondence to Juan P. Cata, MD, Department of Anesthesiology and Perioperative Medicine, The University of Texas – MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77401, USA. Tel: +713 792 4582; e-mail: firstname.lastname@example.org Copyright © 2018 YEAR Wolters Kluwer Health, Inc. All rights reserved.