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Article
July 16, 1955

MYOCARDIAL INFARCTION AND MASTER TWO-STEP TEST

JAMA. 1955;158(11):970. doi:10.1001/jama.1955.02960110076022

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Abstract

To the Editor:—  We take issue with the article "Myocardial Infarction Precipitated by Master Two-Step Test" by L. A. and Milton Grossman that appeared in the May 21 issue of The Journal, page 179. The exercise test should not be done on patients who have had a myocardial infarction and have angina decubitus as in the case reported. Furthermore, the article gives the impression that the exercise test with the electrocardiogram was first introduced by A. M. Master and E. T. Oppenheimer in 1929 (Am. J. M. Sc.177:223,1929). To the best of our knowledge the electrocardiogram was not used in conjunction with an exercise test in that year. What Master and Oppenheimer did have was a table of standard physical exercise based on weight, height, sex, and age, and the circulatory efficiency was determined by comparing the blood pressure and pulse against normal tables. The first to use

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