MYRON PRINZMETAL, M.D.; LOIS L. SCHWARTZ, M.D.; ELIOT CORDAY, M.D.; RAMON SPRITZLER, M.D.; H. C. BERGMAN; H. E. KRUGER
It is well known clinically and experimentally that an ischemic portion of myocardium may bulge or "balloon" out during systole.1 This remarkable phenomenon, which is of diagnostic and physiologic importance, has been very difficult to study in the past. Clinically, it has been observed on patients under the fluoroscope and may be graphically recorded by the electrokymogram and roentgenkymogram.2-8 The information that can be obtained by such clinical procedures is relatively limited. At best, these clinical methods can tell us only whether bulging in systole is or is not present. It is highly probable that slight degrees of bulging
MYRON PRINZMETAL, LOIS L. SCHWARTZ, ELIOT CORDAY, RAMON SPRITZLER, H. C. BERGMAN, H. E. KRUGER. STUDIES ON THE CORONARY CIRCULATION. VI. LOSS OF MYOCARDIAL CONTRACTILITY AFTER CORONARY ARTERY OCCLUSION(STUDIES ON THE CORONARY CIRCULATION. VI. LOSS OF MYOCARDIAL CONTRACTILITY AFTER CORONARY ARTERY OCCLUSION*). Ann Intern Med. 1949;31:429–449. doi: 10.7326/0003-4819-31-3-429
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Published: Ann Intern Med. 1949;31(3):429-449.
Cardiology, Coronary Heart Disease.
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