Cavity Potentials of the Human Ventricles

Abstract
Intracavitary potentials of the human left ventricle were studied in 8 patients by the technic of retrograde ulnar artery or, in one case, pulmonary vein catheterization. The intracavitary potentials from the left ventricle were of the QS variety and confirm Wilson's concept of the earlier depolarization of the intraventricular septum from left to right.