Abstract:At the time of preoperative coronary angiography in 44 patients left ventricular angiograms immediately after high frequency stimulation and after administration of nitroglycerin were performed. For interpretation we used the shortening (in percentage) of 8 vertical semi-diameters and of longitudinal axis in biplane angiograms. The data found in 15 healthy persons were used for comparison. Looking at the rate of shortening after high frequency stimulation myocardial areas endangered by hypoxia could be unmaske… Show more
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