PHYSIOLOGIC STUDIES ON THE CARDIOVASCULAR STATUS OF NORMAL NEWBORN INFANTS (WITH SPECIAL REFERENCE TO THE DUCTUS ARTERIOSUS)

Abstract

Physiologic studies, including cardiac catheterization, electrocardiography, and determination of heart volume have been performed on eight newborn infants with normal cardiovascular status, ranging in age from 7 hours to 14 days. The two most interesting results of these studies were the finding of right ventricular and pulmonary hypertension of moderate degree, and a significantly barge left to right shunt of blood through the ductus arteriosus after the third day of life.[See Table II in Source Pdf]