Exercise-Induced RS-T Elevation

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Abstract
In 4 patients in which an exercise test induced an elevation of the RS-T segment and an increase of the R-wave, coronary angiography showed a localized, subocclusive stenosis of the single major coronary vessel supplying the myocardial area responsible for the electrocardiographic alterations. This observation demonstrates the value of the exercise test in evoking electrocardiographic features often associated with Prinzmetal’s variant form of angina pectoris, when there is an anatomical basis for the syndrome.

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