Artery Calcium Scans Change Statin Decisions Without Altering Cardiovascular Outcomes
A trial involving nearly 5,800 adults has challenged a key question in cardiovascular prevention: how should doctors identify patients who will benefit from statins?
Researchers compared artery calcium scans, which measure plaque buildup, with traditional cardiovascular risk assessments. The two approaches were associated with the same observed rate of major cardiovascular events, but they differed substantially in how many people were advised to take statins. Scan-based assessments prompted statin recommendations for far fewer participants.
Adherence was notably higher among patients whose advice was based on their scan results. These patients were nearly three times as likely to take their statins as those who received recommendations through the traditional risk-assessment approach.
The findings suggest that calcium scans could help clinicians target treatment more selectively, potentially reducing unnecessary prescriptions while giving patients a more concrete basis for starting medication. At the same time, the results raise questions about how scan findings influence patient motivation and whether improved adherence can offset the smaller number of people recommended for treatment. The trial’s similarity in cardiovascular-event rates also indicates that the two approaches did not produce a detectable difference in the main outcome studied.