Exploration of a quality improvement process to standardised preoperative tests for a surgical procedure to reduce waste.

Background: Preoperative tests are done to determine a patient's fitness for anaesthesia and surgery.

Local Problem: Although routine tests before surgery in the absence of specific clinical indications are not recommended, we observed high volumes of routine preoperative tests were performed in our institution. We describe a process to implement a standardised preoperative investigational approach to reduce unnecessary testing before surgeries.

Methods: A series of six Plan-Do-Study-Act (PDSA) cycles was conducted for root cause analysis and process mapping, development of standardised tool (GRID), collection of baseline data, education and feedback, pilot testing and implementation and uptake of GRID.Root cause analysis revealed a lack of awareness of guidelines and a lack of a standardised tool to guide preoperative testing. We undertook a pilot quality improvement project to reduce unnecessary testing before knee and hip arthroplasty by developing and implementing a standardised tool (GRID) and engaging all stakeholders.

Interventions: A clinical development team (CDT) was formed, including all the stakeholders. Our CDT focused on a continuous rapid cycle improvement strategy.

Results: After implementation of the tool in a subgroup of patients undergoing elective hip or knee arthroplasty, unnecessary coagulation tests (activated partial thromboplastin time and the international normalised ratio), electrolyte/renal panel tests and electrocardiograms were reduced by 81% (91%-17%), 81% (41%-7%) and 68% (35%-11%), respectively. No surgery was delayed or cancelled due to tests not performed before surgery.

Conclusions: A standardised preoperative investigational approach based on patients' medical conditions rather than routine testing can reduce unnecessary tests before surgery. Further, implementing guidelines is more complex than developing guidelines. Hence, continuous PDSA cycles are essential to evaluate the processes in a quality improvement project. It can take time to build teams and have shared goals; however, once this is achieved, the success of a quality improvement project is certain.