A. MCGEHEE HARVEY, M.D.
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In order to differentiate clearly the various types of sudden increase in the cardiac rate electrocardiographic records are necessary. In view of the fundamental differences in the method of treatment employed in these instances of paroxysmal tachycardia an exact diagnosis is desirable. In many instances the auricular complexes are not clearly discernible in the three conventional leads, and the cardiac rhythm cannot be determined with certainty. For example, the difficulty in distinguishing paroxysmal auricular tachycardia and auricular flutter with one to one response is especially great.
The esophageal electrogram is of practical aid in the diagnosis of abnormalities of the
HARVEY AM. THE ORIGIN OF PAROXYSMAL TACHYCARDIAS AS DETERMINED BY THE ESOPHAGEAL ELECTROGRAM*. Ann Intern Med. 1937;11:57–68. doi: https://doi.org/10.7326/0003-4819-11-1-57
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Published: Ann Intern Med. 1937;11(1):57-68.
Cardiology, Rhythm Disorders and Devices.
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