This document outlines the components and development of clinical perfusion data (CPD) used during cardiopulmonary bypass procedures. It discusses how CPD has evolved from handwritten records to computerized databases to better organize patient information, physiological parameters, blood gas results, and perfusionist details. Maintaining complete and accurate CPD is important for documenting the surgical procedure, monitoring patient safety, and complying with legal and regulatory standards. The presentation concludes by demonstrating the current computerized CPD database system used at this medical center.