IMPROVEMENT IN OXYGEN TENSIONS AND PULMONARY BLOOD FLOW WITH INTERMITTENT DISTAL AORTIC COMPRESSION DURING NORMOXIA, HYPOXIC HYPOXIA, AND HYPEROXIA IN NEONATAL PIGLETS

We investigated the hypothesis that, in a newborn piglet during normoxia, hypoxia, and hyperoxia, increasing aortic pressure transiently by intermittent short-duration aortic compression would affect left-to-right shunting of blood and thus increase pulmonary artery blood flow, pulmonary arterial PO 2 , and aortic PO 2 proximal to the point of compression