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- Academic Editors
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Background: Although exercise stress electrocardiography (ECG) is a
popular tool for detecting coronary artery disease (CAD), the induced
ST-depression without coronary artery stenosis (FST) remains a challenge for
accurate diagnosis. Exercise-induced ST depression is related to poor prognosis
even in non-obstructive disease; however, its determinants have not been fully
defined. We sought to investigate whether ventriculo-vascular interactional
indexes such as arterial stiffness index, exercise hemodynamic parameters and
echocardiographic left ventricular (LV) functional parameters were related to
FST. Methods: In the current study, 609 participants who underwent both
supine bicycle exercise echocardiography and brachial-ankle pulse wave velocity
(baPWV) measurement without exercise-induced regional wall motion abnormalities
(RWMA) were analyzed. Referral reasons for stress test were CAD detection or
evaluation of patency of previous revascularization. Stepwise graded supine
bicycle exercise was performed with simultaneous ECG recording and
echocardiography after full conventional resting echocardiography. The FST was
defined as newly developed