| abstract |
The present invention involves placing a valve between the left atrium and the lung to prevent regurgitant flow from increasing the pulmonary pressures, which may lead to pulmonary edema and congestion. Mitral stenosis or poor synchronization of the mitral valve may add additional pressures to the left atrium thus raising the pulmonary pressures and leading to congestion in the lung vasculature. By blocking the additional pressures from the mitral regurgitant flow from reaching the pulmonary circulation, the left atrium may act as a sealed vessel to allow additional aortic output. The valve placement can be intralumenal or attached to the ostium of the atrium. The device can be placed via the vascular conduits or through a surgical procedure into the pulmonary circulation. One or more devices may be placed in each of the four pulmonary veins. Additionally only one, two, three or all four veins may be implanted with the valve as desired by the physician. |