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Relationship of Pulmonary Artery-Wedge Pressure to Left Atrial Pressure in Man

Peter C. Luchsinger, Harry W. Seipp, Dali J. Patel

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Abstract

The pulmonary artery-wedge and left atrial pressures were recorded simultaneously in 11 patients during a control state, during norepinephrine infusion, as well as during positive and negative intra-alveolar pressures. A good correlation (r = 0.95) found between the two pressures permits the use of corrected pulmonary artery-wedge pressure in calculation of pulmonary vascular resistance under control and test conditions.

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What this paper is about

The pulmonary artery-wedge and left atrial pressures were recorded simultaneously in 11 patients during a control state, during norepinephrine infusion, as well as during positive and negative intra-alveolar pressures. A good correlation (r = 0.95) found between the two pressures permits the use of corrected pulmonary artery-wedge pressure in calculation of pulmonary vascular resistance under control and test conditions.

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Available abstract

The pulmonary artery-wedge and left atrial pressures were recorded simultaneously in 11 patients during a control state, during norepinephrine infusion, as well as during positive and negative intra-alveolar pressures. A good correlation (r = 0.95) found between the two pressures permits the use of corrected pulmonary artery-wedge pressure in calculation of pulmonary vascular resistance under control and test conditions.

Key concepts: Pulmonary wedge pressure, Cardiology, Pulmonary artery, Left atrial pressure, Internal medicine, Medicine, Vascular resistance, Wedge (geometry)

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