When it’s OK to defer a cardio stress test

Stress testing may not always be necessary for those with non-urgent chest pain, say cardiologists.

Their two-year follow-up study involving more than 10,000 people with stable chest pain shows a quarter of non-invasive cardiac tests can be safely deferred.

Published in JAMA Cardiology, the study randomised participants to have either an exercise stress test (often with an imaging study of heart blood flow or