Extra pulmonary Water quantification by PiCCO system in edema reperfusion after pulmonary endarterectomy

Main objective is to study the amount variations of pulmonary water measured by simple thermodilution during the first 48 hours in the intensive care after Pulmonary endarterectomy. The PiCCO-Technology allows monitoring by a minimally invasive method, hemodynamic and volumetric parameters. PiCCO technology is based on transpulmonary thermodilution and contour analysis of the pulse wave. Data thermodilution and analysis of pulse wave are collected using a pulmonary artery catheter and a central venous catheter inserted into the jugular position operating room. A first series of thermodilutions transpulmonary is formed by injection on a center line of the right jugular, three boluses of 15 ml of cold physiological saline solution at 4 degrees Celsius temperature. If there was a difference in cardiac output value of more than 20% between thermodilutions two other thermodilutions are performed. The measured values are the average of three thermodilutions and the extreme values are removed. They also show the values of volumes and analysis of the pulse wave intra-thoracic. Data is collected once a day, an hour after the patient arrival in intensive care unit, and 24 and 48 hours after surgery.