REPLACEMENT OF THE MAIN PULMONARY ARTERY BIFURCATION BY AUTOGENOUS PERICARDIUM

Left Main Pulmonary Artery

CONGENITAL ABSENCE of a main pulmonary artery branch is now a wellrecognized clinical entity, more than 60 cases having been reported in the literature. Diagnosis has heretofore been based primarily oln radiologic findings' in both routine x-rays and angiocardiography. Physiologic studies of pulmonary function, including differential bronchospirometry, however, provide valuable diagnostic infor...

Main pulmonary artery aneurysm.

Pulmonary artery aneurysm is a rare lesion of the thoracic cavity. Different etiologies have been reviewed, but idiopathic lesions without other symptoms are seldom reported. Usually, surgical interventions are suggested, but the long-term outcomes are not well established. Here, we report a 24-year-old man with main pulmonary artery aneurysm who successfully underwent aneurysmectomy and polyte...

Tracheal replacement by autogenous aorta

BACKGROUND Tracheal defects may occur after trauma or prolonged intubation. Resection of tracheal tumors also poses a major challenge for substitution. In an effort to solve this problem, different techniques have been tried with little success. We report on a new animal model which showed acceptable results with fewer complications. METHODS We replaced 5 cm of cervical trachea in 10 dogs wit...

Acute pulmonary artery hypertension produced by distention of the main pulmonary artery in the conscious dog.

In order to delineate further the function of the main pulmonary artery as a receptor site, a specially designed Laks triple-lumen balloon catheter was inserted transvenously and positioned in the main pulmonary artery. In six conscious nonsedated dogs, inflation of a balloon in the main pulmonary artery produced acute reversible pulmonary arterial hypertension; the pressure beyond the balloon ...

Left main coronary artery compression by an enlarged pulmonary artery.