Superior vena cava obstruction is associated with multiple venous collaterals. There is an unusual pathway involving pulmonary venous collaterals in which systemic veins drain directly into the left heart, resulting in a right-to-left shunt. We report here a rare case of systemic to pulmonary venous shunt on both hemithoraces in superior vena cava obstruction associated with Budd-Chiari syndrom...

BACKGROUND Combining bilateral pulmonary artery banding with arterial duct stenting, the hybrid approach achieves stage 1 palliation for hypoplastic left heart syndrome with different flow characteristics than those after the surgical Norwood procedures. Accordingly, we used computational modeling to assess some of these differences, including influence on systemic and cerebral oxygen deliverie...

OBJECTIVE Systemic-to-pulmonary shunt operations are still required for palliation of certain congenital heart defects. The aim of this study was to analyze the incidence and etiology of the development of pulmonary artery stenosis after these procedures. METHODS AND RESULTS Pre- and post-operative angiograms of 59 patients who underwent 54 peripheral and 12 central shunt operations were anal...

ventriculoperitoneal (vp) shunt is one of the most common pediatric neurosurgical procedures. it has various complications that may have serious consequences such as shunt dysfunction, and unusual migration. although, migration of shunt catheter to bladder, heart, umbilicus, rectum, pulmonary artery, and stomach has been reported, migration to vagina is a rare one. in this report we present a 1...

WHITE, FRED N., AND GORDON Ross. Circulatory changes during experimental diving in the turtle. Am. J. Physiol. 2 I I ( I) : I 518. I g66.-Blood flow (electromagnetic flowmeters) and pressures in pulmonary and systemic circuits were studied in intact, unanesthetized turtles (Pseudemys scripta) in both nondiving and diving states. Cardiac output (combined pulmonary, left and right arch flows) in ...

WHITE, FRED N., AND GORDON Ross. Circulatory changes during experimental diving in the turtle. Am. J. Physiol. 2 I I ( I) : I 518. I g66.-Blood flow (electromagnetic flowmeters) and pressures in pulmonary and systemic circuits were studied in intact, unanesthetized turtles (Pseudemys scripta) in both nondiving and diving states. Cardiac output (combined pulmonary, left and right arch flows) in ...

BACKGROUND In right ventricular failure (RVF), an interatrial shunt can relieve symptoms of severe pulmonary hypertension by reducing right ventricular preload and increasing systemic flow. Using a pig model to determine if a pulmonary artery-left atrium shunt (PA-LA) is better than a right atrial-left atrial shunt (RA-LA), we compared the hemodynamic effects and blood gases between the two shu...

BACKGROUND The balance of systemic, pulmonary, and coronary blood flow after the Norwood operation for hypoplastic left heart syndrome (HLHS) is critical to early survival. We hypothesized that a right ventricle to pulmonary artery conduit (instead of a systemic to pulmonary artery shunt) would result in hemodynamic changes consistent with a more stable balance of systemic, pulmonary, and coron...