Enhanced recovery after surgery (ERAS ) Society abdominal and thoracic surgery recommendations: A systematic review and comparison of guidelines for perioperative and pharmacotherapy core items.

Introduction: Worldwide, ERAS Society guidelines have ushered in a new era of perioperative care. The purpose of this systematic review is to compare published core elements and pharmacotherapy recommendations embedded within ERAS Society abdominal and thoracic surgery (ATS) guidelines. Determining whether a consensus exists for pharmacological core items would make future guideline preparation for similar surgeries more standardized and could improve patient care by reducing unnecessary protocol variations.