Post-traumatic intracardiac shunts

Oximetric detection of intracardiac left-to-right shunts.

To assess prevailing guidelines for the oximetric detection of intracardiac left-to-right shunts, we examined the variability of right heart oxygen saturation step-ups in 1121 catheterisations in children with aortic and pulmonary stenosis, who were studied as part of the joint study of the natural history of congenital heart defects. It is estimated that in the absence of intracardiac shunting...

Dependent and obligatory intracardiac shunts in congenital heart disease.

T HIS ISSUE of CIRGULATION contains a special article by Dr. Abraham Rudolph, the substance of which is the Conner Lecture, given in 1969 at the Annual Scientific Sessions of the American Heart. Association, and entitled "The Changes in the Circulation after Birth: Their Importance in Congenital Heart Disease." The newer knowledge of how the fetal circulation is altered at birth is ably reviewe...

Radionuclide quantitation of right-to-left intracardiac shunts in children.

A simple, noninvasive method for measurement of right-to-left intracardiac shunts would enhance the management of patients with congenital heart disease. This study describes application of data processing techniques used previously in dye-indicator curves to data recorded during the initial transit of radioactive bolus through the central circulation. Radionuclide angiocardiograms were perform...

Dual-isotope method for diagnosis of intracardiac shunts.

[Magnetic resonance imaging in the evaluation of congenital intracardiac shunts].

For many years, cardiac catheterization and angiocardiography have been the main diagnostic methods for morphological and functional assessment of congenital shunts. However, catheterization techniques are invasive, require injection of iodide contrast and exposure to x-rays, and complications may arise, particularly in pediatric patients. In the last 2 decades, echocardiography has progressive...