[…]

Summary Introduction Modification of internal thoracic artery flow occurs after its anastomosis in the left anterior descending coronary artery. Objective To evaluate the effect of ligation of the proximal branches of anastomosed internal thoracic artery flow on the left anterior descending in relation to velocities and coronary flow velocity reserve in patients with left ventricular ejection fraction preserved (> 50%). Methods Prospective study of patients with left ventricular ejection fraction > 50% and revascularized. Group I was composed of 25 […]

Abstract Introduction Different technologies have been used to evaluate left ventricular systolic function. Of particular interest is the two-dimensional strain echocardiography (2DSTE). Two different methods have been used to quantify myocardial strain by 2DSTE: block matching and optical flow. Both are present in commercially available echocardiographs. However, there is no consensus as to whether the longitudinal strain measures using these methods are overlapping. Objective To compare the longitudinal myocardial strain peak values obtained through 2DSTE using two different methods (block […]