Rationale and design of an evidence-based tool to guide preoperative evaluation and management.

Background: In the United States, over-testing and over-treatment are recognised causes of excess cost and patient harm. Healthcare value, defined as health outcomes achieved relative to the costs of care, has become a focus to improve the quality and affordability of healthcare.

Aim: To describe the rationale for, and development of a standardised clinical preoperative decision-support tool. An evidence-based, preoperative clinical decision tool was developed to guide preoperative testing and management of high-risk medications. Patient data before and after implementation of the tool will be analysed to determine its effectiveness in reducing preoperative testing.

Discussion: Preoperative testing is an area that presents an opportunity to increase healthcare value and decrease healthcare spending. Guidelines are available to standardise preoperative assessment but their adoption and acceptance into practice has been slow. To systematise preoperative assessment within our healthcare system, we reviewed current published literature and guidelines and synthesised them into an electronic, evidence-based, decision-support tool. After distribution of the tool to clinicians in our healthcare system, we will assess its impact on healthcare value, costs and outcomes. We believe that an evidence-based preoperative tool, seamlessly and efficiently integrated into clinician workflow, can improve preoperative patient care.