[Acute pulmonary edema due to hyperperfusion: experimental observations in the dog]

A condition of acute pulmonary edema was obtained experimentally in the dog, perfusing the lower lobe of the left lung by a roller pump with compatible canine plasma. The edema develops contemporarily to the increase of pressure in the pulmonary artery and the interstitial tissue: it diffuses principally in the interstitial tissue, while after clamping the pulmonary veins it is observed also inside the alveoli.