[Hemodynamics of pulmonary circulation during pulmonary resection (author's transl)]

In 22 patients continuous measurement of the pulmonary artery pressure was performed during pulmonary resection. A remarkable elevation of the pulmonary artery pressure was observed: a) at the introduction of anesthesia, b) when the lung was compressed during the preparation of the hilus-vessels, c) when the pulmonary artery was ligated, d) at probatory inflation of the lungs. The factors causing the elevation of the pulmonary artery pressure during pulmonary resection are discussed.