Pulmonary Haemodynamics in the Intensive Care Unit
Pulmonary vascular pressure measurements throughout the world are made with the Swan-Ganz catheter, which was introduced in 1970 , This catheter is balloon-tipped, which allows placement in the pulmonary artery without fluoroscopic control and measurement successively of right atrial pressure (Pra), right ventricular pressure (Prv), pulmonary artery pressure (Ppa) and occluded Ppa (Ppao). It has two fluid-filled lumens, one for measurement of Ppa and Ppao, and one for the measurement of Pra and injection of saline into the right atrium for the measurement of pulmonary blood flow (Q) by thermodilution. It has a thermistor at the tip for measurement of blood temperature in the pulmonary artery.
KeywordsPulmonary Artery Pulmonary Artery Pressure Pulmonary Artery Catheter Pulmonary Circulation Pulmonary Blood Flow
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