Early in 1966 a symposium was held in Chicago with the defined purpose of reviewing the current status of information regarding the unique cardiovascular system of the newborn. The participants included a distinguished group of international investigators from many disciplines. The papers read at the Symposium, including the significant charts and tables, are presented in this volume. Pertinent references have been added. The discussion of the papers is presented, apparently unedited, as certain sections are not meaningful without the slides which were presented at the time. Example: "If you take a newborn infant at autopsy, you get a picture of this kind."
The bulk of the text relates to the physiological and pathophysiological adjustments made by the normal and abnormal circulatory system in its transition from the fetal to the terrestial state. A section on certain aspects of electrocardiography is included. The final section presents awesome recent advances in the