Comparing of Peak Longitudinal Strain and Post Systolic Shortening in
Detecting Ischemia at Rest in Stable Coronary Artery Disease: An
Angiography Verified Study
Background: Coronary artery disease is a major public health problem.
Early diagnosis and treatment of coronary artery disease is crucial.
There is a need for a practical, reliable and cost-effective
non-invasive imaging tool. We aimed to evaluate the rest ischemia with
speckle tracking echocardiography (STE) compare to the two methods in
patients who were scheduled coronary angiography according to the stress
tests. Methods: We included fifty patients with stable angina pectoris
who were scheduled for conventional coronary angiography after the
stress tests in our study. Speckle tracking echocardiography was
performed just before coronary angiography. The association of 2
parameters with coronary artery disease was investigated and compared.
Results: Among 50 patients recruited for the study, 38 of them had
severe CAD (>50%), whereas 12 patients had non-significant
CAD. Post systolic shortening (PSS) was significantly related with CAD
(p<0.0001). The relationship of PLS with the area at risk was
found to be statistically insignificant but global longitudinal strain
(GLS) was significantly lower in patients with severe CAD (p=0.011)
Conclusion: PSS may detect coronary ischemia in patients with stable
coronary artery disease and it is more sensitive and specific in
patients with stable CAD. PSS is a very useful, practical and easy
applicable non invasive tool for the detection of severe coronary artery
disease at rest.