“…Use of this shunt reduced the incidence of paraplegia from 60% to 0% in 15 to 25 kg dogs [19]. Van Voorst and colleagues used radiolabeled microspheres to study spinal cord and visceral blood flow during [24] and following [25] thoracic aortic surgery with intra-aortic shunting. In neonatal pigs, a 5 cm, 3/16 in.…”