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Melvin M. Scheinman, MD; Rolando P. Gonzalez, MD

JAMA. 1980;244(23):2646-2649.

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

PROPER treatment of patients with acute myocardial infarction and fascicular block depends on understanding of the relationship between the ventricular specialized conduction system and its blood supply. In this article, we detail the importance of site of infarction, the type of ECG abnormality, and the clinical status of the patient in formulating a rational treatment program.

VENTRICULAR SPECIALIZED CONDUCTION SYSTEM (VSCS) AND ITS BLOOD SUPPLY

The VSCS begins with the branching portion of the His bundle in which fibers segregate into right and left bundle branches (Fig 1). The right bundle-branch (RBB) is long and slender and terminates into a Purkinje network relatively late in its course. In contrast, the left bundle-branch (LBB) divides early into a left anterior fascicle and a left posterior fascicle.¹ Special fibers derived from the left conducting system activate the septum. The blood supply to the His bundle is usually dual,² arising from . . . [Full Text PDF of this Article]

Author Affiliations
From the Department of Medicine, University of California, San Francisco.

Footnotes
This article is one of a series sponsored by the American Heart Association.

Reprints not available.

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