Preoperative screening, evaluation, and optimization of the patient's medical status before outpatient surgerySweitzer, Bobbie JeanCurrent Opinion in Anaesthesiology: December 2008 - Volume 21 - Issue 6 - p 711–718 doi: 10.1097/ACO.0b013e3283126cf3 Ambulatory anesthesia: Edited by Girish Joshi Abstract Author Information Purpose of the review: Preoperative evaluation and optimization of a patient's medical conditon are important components of anesthesia practice. With ever increasing numbers of patients with serious comorbidities having complex procedures as outpatients, the task of gathering information and properly preparing for their care is challenging. Improvements in assessment and management can potentially reduce adverse events, improve patient and caregiver satisfaction, and reduce costs. Recent findings: A growing body of literature and evidence-based practices and guidelines can assist clinicians who work in the expanding field of preoperative medicine. Care providers from various specialties in medicine are developing innovative methods, tools, and knowledge to advance science and processes. Data-driven practices are beginning to close the information gap that has plagued this field of medical practice. Summary: Preparation of patients before surgery is a necessary and vital component of perioperative medicine. Practices are developing to guide effective interventions that benefit patients and healthcare systems. Outpatients present special challenges to preoperative assessment. Anesthesia and Critical Care, University of Chicago, Anesthesia Perioperative Medicine Clinic, Chicago, Illinois, USA Correspondence to Bobbie Jean Sweitzer Director, Anesthesia Perioperative Medical Clinic, Associate Professor of Anesthesia and Critical Care, Associate Professor of Medicine University of Chicago, Chicago, IL 60637, USA © 2008 Lippincott Williams & Wilkins, Inc.