New Study Reveals Strategies to Minimize Unnecessary Preoperative Tests

Overview

As patients prepare for surgery, they often undergo various tests such as blood draws and heart rhythm evaluations in the weeks leading up to their procedures. However, recent research indicates that not all patients require these assessments, particularly when the results do not influence surgical management or patient outcomes. A new study highlights effective methods for hospitals to concentrate testing resources on patients who genuinely need them, thus reducing unnecessary procedures and conserving both financial and clinical resources.

Research Findings

Published in JAMA Surgery, the study conducted by researchers from the University of Michigan and Brigham and Women's Hospital evaluated a program aimed at decreasing superfluous preoperative tests at U-M Health. The focus was on minimizing four specific tests for low-risk patients undergoing outpatient surgeries, including the removal of breast lumps, diseased gallbladders, or hernia repairs.

Prior to the intervention, 37% of these patients underwent at least one unnecessary test; however, by the conclusion of the study, this figure dropped to 14%. Additionally, the overall percentage of patients receiving these four tests before surgery decreased from 51% to 27%. Importantly, the reduction in testing did not adversely affect patients who genuinely needed these assessments based on their health status and surgical risk. The rates of emergency department visits and hospitalizations in the weeks following surgery remained consistent, suggesting that the reduction in unnecessary testing did not compromise surgical safety or outcomes.

Implementation and Collaboration

The success of this study is attributed not only to the reduction of unnecessary testing but also to the collaborative approach taken to implement and measure the intervention. According to the study's senior author, the initiative involved educating healthcare providers on the evidence supporting reduced testing in specific patient populations and engaging them in determining how to best implement these changes.

To achieve this, the U-M Health team, led by Lesly Dossett, M.D., M.P.H., organized multiple sessions with clinicians to build consensus on which patients required specific tests. Clinicians utilized decision-support tools, including flowcharts and grids, to assess the necessity of tests based on individual patient characteristics. The targeted tests included complete blood cell counts (CBCs), basic metabolic panels (BMPs), comprehensive metabolic panels (CMPs), and electrocardiograms.

Patients were evaluated using a standardized scale employed by anesthesia professionals to gauge the risk of complications during anesthesia. Those rated at the lowest two levels were exempt from undergoing the four tests unless specifically ordered by a specialist. Even patients in higher risk categories could avoid certain tests based on their overall health conditions.

Future Directions

The initiative's success at U-M Health has prompted plans to expand this testing strategy to additional surgical specialties and assess its broader implications. The research team is collaborating with 16 other hospitals across Michigan to replicate the intervention and evaluate its effectiveness in various healthcare settings. This statewide study aims to determine whether the methodology that proved successful at U-M Health can be generalized and to analyze the financial benefits of reducing unnecessary preoperative testing.

Conclusion

By fostering a culture of evidence-based practice and collaboration among healthcare providers, the study underscores the potential for significant improvements in preoperative testing protocols, ultimately benefiting both patients and healthcare systems.