21. Previously, his aides had said he suffered from ischemia, a shortage of oxygenated blood to the heart. 22. Dion is killed during their escape and Schofield revived, having used hyper-oxygenated blood to feign his death. 23. When the heart can no longer pump properly, the tiny turbine pushes oxygenated blood throughout the body. 24. There, it can get trapped in the arteries as they narrow to oxygenate blood in the lungs. 25. In the "'left heart "', oxygenated blood is returned to the left atrium via the pulmonary veins. 26. It involves the intentional creation of a septal defect in order to alter the flow of oxygenated blood . 27. This oxygenated blood is then returned to the heart, which pumps it to the rest of the body. 28. In the " left heart " oxygenated blood is returned to the left atrium via the pulmonary vein. 29. The heart has to pump twice as much to provide the body with enough oxygenated blood to survive. 30. If blood pools in the area, this will also impede the flow of fresh, oxygenated blood into the area.
