Pulmonary vein wedge angiography.

Pulmonary vein wedge angiography.

Visualization of the pulmonary arteries in pseudotruncus by pulmonary vein wedge angiography.

Pulmonary venous wedge angiography revealed the anatomy of the mediastinal and parenchymal pulmonary arteries in 22 patients with obstruction of the right ventricular outflow tract, proximal pulmonary arteries or branch pulmonary arteries, when conventional angiographic methods had failed. Nine of these patients had pseudotruncus-type anatomy and had no previous surgery. One pulmonary artery wa...

The pulmonary vein wedge pressure in man.

In 12 patients with atrial septal defect or anomalous pulmonary venous connection, pulmonary vein wedge mean pressure uniformly exceeded mean pressure in the left atrium or pulmonary vein and with one exception was less than mean pressure in the pulmonary artery. There was a positive correlation between pulmonary arteriolar resistance and the difference in pressure between pulmonary artery and ...

Complications of pulmonary vein angiography.

A severe complication of pulmonary vein angiography.

A pulmonary vein angiogram was performed using a pressure injection with the tip of an end and side hole catheter in a near-wedge position; extravasation of contrast material into a bronchus occurred, causing severe bronchoconstriction. It may be possible to avoid this complication by the use of an end hole balloon catheter in the wedge position, slow flow rates of contrast material, and low pr...