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III. REPORT OF A CASE OF INCOMPLETE HEART BLOCK DUE TO VAGAL EFFECT

WILLIAM POEL

Arch Intern Med. 1942;69(6):1040-1050.

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

Reports on persistent vagal disturbances of the heart mechanism in apparently normal persons with the exception of sinus arrythmia and bradycardia are exceedingly rare. A survey of the literature revealed only 3 cases of such disturbance.¹

In a recent study of the electrocardiographic variations of the healthy heart, electrocardiograms and stethograms were made on more than 2,400 apparently normal high school students. The following case of physiologic heart block of vagal origin was the only instance of such a disturbance which was observed. It occurred in a Negro boy who except for this abnormality was clinically normal and entirely free of any sense of physical ill-being or of symptoms which could be related either directly or indirectly to a condition of heart block. Observations made in this case are reported, compared with those of Levy^la and Marzahn^lb and discussed in the light of electrocardiographic changes in the . . . [Full Text PDF of this Article]

Author Affiliations
BETHESDA, MD.

Footnotes
Data on which this paper is based were derived from a cooperative investigation by the United States Public Health Service, Division of Public Health Methods; the Cornell University Medical College, Departments of Public Health, Preventive Medicine and Pediatrics; the Milbank Memorial Fund, and the New York City Department of Health. The cooperating agencies have been assisted in carrying out this investigation by the Work Projects Administration for the city of New York, Official Project No. 65-1-97-21, W. P. 24, "Medical Evaluation of Nutritional Status."

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