The PDW is developed and maintained by The Vanderbilt Anesthesiology & Perioperative Informatics Research (VAPIR) Division, led by Jonathan P. Wanderer, MD, MPhil and Jesse M. Ehrenfeld, MD, MPH. We focus on utilization of information technology within the perioperative environment to improve patient safety and the quality of care delivered. The multidisciplinary group, which has grown from just three full-time research support staff in 2010 to eight in 2015, manages more than 80 active clinical research projects and has taken the lead on developing methodologies for evaluating the impact of technology and information management systems within the operating room. We currently have detailed information on over 900,000 anesthetics and support a variety of critical hospital functions.