Vectorcardiographic Investigations on the Auricles

Abstract

Vectorcardiography demonstrates very clearly the method of auricular activation and shows its spatial development. This is illustrated and discussed in this paper as it occurs in normal subjects, in a patient with an ectopic auricular pacemaker, and in patients with pulmonary heart disease. Changes similar to those seen in patients with cor pulmonale have been observed in dogs after partial occlusion of the pulmonary artery. Remarkable alterations of the auricular vectorcardiogram have been seen in patients with mitral heart disease after commissurotomy.