Video 28.9 Pulmonary venous obstruction caused by atrial dilatation
Pulmonary venous obstruction caused by atrial dilatation. Atriopulmonary connection with important dilation of the right atrium (RA), causing compression on the right upper pulmonary vein with turbulent flow in the pulmonary vein and a mean gradient of 4-5 mmHg. Source: Courtesy of Dr. F. Meijboom.