Severe acute pancreatitis as clinical more common and high fatality rate of an acute abdomen, its progress is rapid, and is hard to predict, often cause systemic inflammatory response syndrome(SIRS) and multiple organ dysfunction(MODS), and case fatality rate is higher, the kidney in severe acute pancreatitis is one of the more frequently involves outside pancreatic organ, previous researchers believe that this is mainly caused by abnormal renal hemodynamics in acute pancreatitis, but recent studies have fo...