ELECTROCARDIOGRAM AND VECTORCARDIOGRAM IN ISOLATED COMPLETE RIGHT BUNDLE BRANCH BLOCK : PART I CLINICAL STUDIES

Electrocardiogram and Vectorcardiogram in Right Ventricular Hypertrophy and Right Bundle - Branch Block

Wit/i the collaboration of Charles A. Bertrand, M.D., and Frederick R. Mugler, M.D. Electrocardiographic and vectorcardiographic studies on normal subjects and patients with heart disease suggest that criteria for the diagnosis of right ventricular hypertrophy can be improved and simplified. This report proposes new criteria for the electrocardiographic diagnosis of right ventricular hypertroph...

The spatial vectorcardiogram in right bundle branch block.

The precordial electrocardiogram in incomplete right bundle branch block.

I N 1917 Rothberger and Winterberg’ published an electrocardiographic record which depicts the gradual clearing of a defect in conduction affecting the right branch of the bundle of His. An attempt to cut this structure in the course of an experiment on a dog blocked it only temporarily. Fortunately, one of the tracings taken spanned the period during which the injured bundle gradually recovere...

Posterior myocardial infarction and complete right bundle- branch block.

We describe two patients with posterior myocardial infarction (PMI) with unusually atypical clinical presentations and cardiac enzymatic profiles, but with the abrupt development of complete AV block in patient 1, and Mobitz II second-degree AV block with paroxysmal phases of higher degrees of AV block in patient 2, and mitral regurgitation leading to symptomatic pulmonary congestion. Also, bot...

The spatial vectorcardiogram in left bundle branch block.

A method of vectorcardiography, in which the projections of the spatial veetorcardiogrami in various planes of an equilateral tetrahedron reference system are recorded, has been applied to the study of left bundle branch block. Results suggest that the method employed may provide information relative to the state of the miyocar(liutim and the extent of myocardial lesions which is not evident fr...