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  • Title: [Echocardiography during ergometric tests in subjects with stable effort angina (author's transl)].
    Author: Fedele F, Arata L, Giannico S, Pastore LR, Di Renzi L, Penco M, Agati L, Dagianti A.
    Journal: G Ital Cardiol; 1981; 11(3):310-20. PubMed ID: 6793438.
    Abstract:
    The feasibility of echocardiography in detecting left ventricle wall motion abnormalities, their location and their spontaneous or therapeutic regression, was assessed performing monodimensional and two-dimensional echocardiography in 35 patients with stable effort angina, without previous AMI. A control group of 10 normal subjects was also studied. The Authors evaluated echocardiographic findings on subjects at rest, during supine bicycle exercise and after sublingual nitroglycerin administration, defining the quality of wall motion as normal, hypokinetic, akinetic or dyskinetic in M-mode, and normal or asynergic in 2-D. They also analyzed, in M-mode, some echocardiographic indices of regional left ventricle function (IVSE, PWE, VIVS, VPW, delta TS, delta TP), and, in 2-D, the percent of systo-diastolic endocardial outline changes versus standard references in 7 sectors of left ventricle (anterior, lateral, inferior, septal in short-axis, septal, postero-lateral in long-axis, and apical) by means of a HP 9845B Computer, interfaced to a Digitizer. The percentage of feasibility of exercise echocardiography has been 60% in M-Mode, and 70% in 2-D. Mono and two-dimensional findings were normal in all patients at rest, whereas, during exercise, 57% of them, in M-mode, and 88% in 2-D, showed segmental contraction abnormalities. The Authors conclude that exercise echocardiography, though technically difficult, is feasible, Both M-mode and 2-D involve peculiar advantages or disadvantages. They provide, however, a valuable tool in detecting the mechanical consequences of exercise-induced regional myocardial ischemia and may be applicable in patients with equivocal exercise test.
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