Smacc

Matt Morgan describes critical care physiology through history. Matt’s story begins in Copenhagen, 1952, when an 11-year-old girl in developed acute and severe polio. The last iron lung had been used. So, a young anaesthetist, Bjørn Ibsen, organised a tracheostomy and positive pressure ventilation (PPV) and changed the world. From that point we have discovered and understood the physiology of traumatic brain injury, mechanics of PPV, HFOV, APRV and echo to name a few. However, Matt contends that this story was not the beginning of our understanding of physiology. Matt will take you back through time to show how giraffes, dogs, fish and even frogs can teach us about physiology. Giraffes can tell us about the delivery of CPP. They utilise massive mean arterial pressures and a complex system of venous valves. The MAP is achieved through massive left ventricular hypertrophy – a completely normal finding in giraffes. High frequency oscillatory ventilation was first used in the 1970s… however, dogs have been doing