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Cold Head-Warm Body Perfusion: A Guide to Isolated Cerebral Perfusion Using Two Bypass Circuits
Gaudiani V, Shuttleworth P. Cold Head-Warm Body Perfusion: A Guide to Isolated Cerebral Perfusion Using Two Bypass Circuits. July 2025. doi:10.25373/ctsnet.29636780
In this video, Dr. Vince Gaudiani discusses with Dr. Paul Shuttleworth how they set up a bypass circuit for aortic cases, in which hypothermic blood is perfused to the brain while the body is kept normothermic throughout the aortic surgery. They have been implementing this technique since 2007, and in this video, they explain the setup of the circuit. The bypass time is shorter, the rewarming time is shorter, and the blood loss volume is lower with this method.
They have a typical aorto-venous loop and then set up a separate circuit for cerebral circulation. They use a pediatric oxygenator to cool the blood while achieving up to two liters per minute flow. The procedure required a pressure monitor and flow probe in the head circuit. The head flow was 15cc/kg/min, with a maximum of one liter. In this video, diagrams are used to explain the setup, followed by a full demonstration of a case.
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