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THEODORE T. FOX, M.D.; JANET TRAVELL, M.D.; LEONARD MOLOFSKY, M.D.

Arch Intern Med. 1943;71(2):206-218.

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

It is stated that the effect of digitalis on the heart can simulate almost every type of electrocardiographic abnormality due to cardiac disorders with the exception of intraventricular conduction defects.¹ As far as the normal electrocardiogram is concerned, this statement is undoubtedly true. The observations of Hart,² however, have been widely cited in the literature as indicating that digitalis may occasionally cause a delay in intraventricular conduction and a consequent widening of the QRS complex.

In this study prolongation of the QRS time was produced by digitalis in the course of a clinical experiment. The observations were made in a case of so-called "bundle branch block with short PR interval," a syndrome first observed by Wilson³ and subsequently described by Wolff, Parkinson and White.⁴ Bishop⁵ more recently reviewed 45 cases of this syndrome reported in the literature, but as far as we are able to . . . [Full Text PDF of this Article]

Author Affiliations
NEW YORK

From the Cardiac Service, Sea View Hospital, and the Department of Pharmacology, Cornell University Medical College.

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