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FACTORS DETERMINING THE EVOLUTION OF THE ELECTROCARDIOGRAPHIC PATTERNS IN HYPERTROPHY AND BUNDLE BRANCH BLOCK

RICHARD GUBNER, M.D.; HARRY E. UNGERLEIDER, M.D.

Arch Intern Med. 1943;72(2):196-209.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Soon after the advent of clinical electrocardiography it was recognized by Einthoven and others that characteristic deviations occur in association with hypertrophy of the cardiac chambers. Important contributions were made by several early investigators,¹ but for a long time interest in electrocardiography was focused chiefly on differentiation of the arrhythmias and the diagnosis of myocardial disease, with little emphasis on the clinical value of the electrocardiogram as a means of detecting cardiac hypertrophy.

While the association of characteristic electrocardiographic patterns with hypertrophy of the various cardiac chambers is well recognized, the mechanism of these changes remains a subject of some controversy, and specific criteria for the electrocardiographic diagnosis of hypertrophy have not been established.

The present investigation was actuated by the necessity of establishing specific electrocardiographic criteria of left ventricular hypertrophy in connection with a study on prognosis of hypertension.² It was felt, and the belief was subsequently . . . [Full Text PDF of this Article]

Author Affiliations
NEW YORK

From the Medical Department of the Equitable Life Assurance Society of the United States.

Footnotes
Presented at the meeting of the eighteenth scientific session of the American Heart Association, Atlantic City, N. J., June 5, 1942.

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