Fenichel, Nathan N.
August 1962
Angiology;Aug1962, Vol. 13 Issue 8, p360
Academic Journal
A concave RST elevation was found to be a normal variant in the electrocardiograms of 75 patients from a series of 1220 patients observed in private practice and was readily differentiated from the convex or straight RS-T elevation due to an acute myocardial infarction. Patients with the concave RS-T elevation were; followed for from 1 to 20 years during which all but two remained free of any evident heart disease. The normal variant usually did not change and remained a distinctive pattern in each individual's record for many years (an average of 9 years in this series). The characteristic features of this benign RS-T elevation were its arched, nonangular take-off from the descending limb of the R wave, its registration as a curve with continuous upward concavity, and its fusion with the ascending limb of a tall T wave.


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