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BENJAMIN M. BAKER, Jr., M.D.

Arch Intern Med. 1930;45(5):814-822.

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

While temporary or recurring abnormalities of supraventricular conduction are common, notably during the administration of digitalis or during the course of rheumatic fever, disturbances of intraventricular conduction are more often permanent. Deranged right or left bundle conduction in clinical cases has been recognized since the experimental demonstration by Eppinger and Rothberger¹ of the form of galvanometric curves obtained by sectioning the bundle in dogs. A number of anatomic studies has resulted in the demonstration of lesions affecting one or the other bundle in hearts from which, during life, curves had been recorded characteristic of bundle branch block. Evidence of this type of inefficiency of the conducting system is usually observed to persist, but to this generalization there are conspicuous exceptions. Lewis,² Mathewson,³ Carter^3a and Robinson⁴ each published records showing transient bundle branch block as a temporary phenomenon. It is the purpose of this communication to record further observations on temporary . . . [Full Text PDF of this Article]

Author Affiliations
BALTIMORE

From the Cardiographic Laboratory of the Johns Hopkins Hospital and University.

Footnotes
Submitted for publication, Nov. 15, 1929.

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