The use of speckle-tracking stress echocardiography in the early diagnosis of unstable angina

Abstract

Speckle-tracking echocardiography and stress echocardiography are effective non-invasive
methods for the early diagnosis of unstable angina. Speckle-tracking enables the detection
of myocardial dysfunction before a reduction in ejection fraction and improves prognostic
assessment, particularly in obstructive coronary artery lesions. A reduction in the global
longitudinal strain of the left ventricle helps identify myocardial dysfunction with high sensitivity
and positive prognostic value. Stress echocardiography is a diagnostic method that helps
identify predictors of adverse cardiovascular events, and negative test results are associated
with better patient survival. The optimal combination of these methods enhances the accuracy
of diagnosing and predicting cardiovascular mortality.