Annals Internal Medicine, Author Interviews, Biomarkers, Heart Disease / 23.12.2019
Biomarker Predicts Perioperative Cardiovascular Complications
MedicalResearch.com Interview with:
Dr. PJ Devereaux MD, PhD, FRCP(C)
Director of the Division of Cardiology
Scientific Leader
Anesthesiology, Perioperative Medicine, and Surgical Research Group
Population Health Research Institute
McMaster University
MedicalResearch.com: What is the background for this study?
Response: There is an ethical obligation to provide patients with an accurate estimation of the potential benefits of surgery and the potential risks, to facilitate informed decision making about the appropriateness of surgery. There are two common approaches to risk estimation.
First, physicians commonly use clinical risk indices. Based upon a patient’s clinical history (e.g., history of prior heart attack or stroke) an estimate of perioperative risk is determined. Research demonstrates that these clinical risk indices have suboptimal risk discrimination capabilities, and they will underestimate risk in many patients.
The second approach that has commonly been used is to have patients undergo an expensive and time consuming non-invasive cardiac test (e.g., stress nuclear cardiac study). Although these non-invasive cardiac tests can enhance risk estimation in some patients who will have a perioperative cardiac event, these tests more commonly exaggerate risk in patients who will not have a complication. (more…)