ATRIAL SEPTAL DEFECT: With special reference to the Electrocardiogram, the Pulmonary Artery Pressure and the Second Heart Sound

Abstract

The primary purpose of this paper is to present certain highly characteristic features of atrial septal defect that are either insufficiently well known or poorly understood: these include particularly the electrocardiographic appearances, the pressures in the right side of the heart, and the nature and significance of the second heart sound.