Right-to-left ductal shunt and transcutaneous PO2.
The continuous monitoring of the PO2 with double sensors, pre- and post-ductal, is very interesting during the neonatal period; the magnitude of the right-to-left ductal shunting, related to high pulmonary vascular resistance, is well evaluated by the hyperoxemia test. This noninvasive method allows a reliable observation of the pulmonary vascular response to oxygen, alkaline solutions, or tolazoline infusion.
D001784:Blood Gas Analysis; D003937:Diagnosis, Differential; D004374:Ductus Arteriosus, Patent / Q000097:blood*; D006330:Heart Defects, Congenital / Q000097:blood; D006801:Humans; D007231:Infant, Newborn; D008991:Monitoring, Physiologic; D010100:Oxygen / Q000097:blood*; D010313:Partial Pressure; D012127:Respiratory Distress Syndrome, Newborn / Q000097:blood; D012867:Skin / Q000098:blood supply; D014043:Tolazoline
D014043:Tolazoline; D010100:Oxygen