Intra-aortic ballon pump for relief of aortic regurgitation. Experimental study
Moulopoulos, S.D.; Anthopoulos, L.P.; Antonatos, P.G.; Adamopoulos, P.N.; Nanas, J.N.
Journal of Thoracic and Cardiovascular Surgery 80(1): 38-44
1980
ISSN/ISBN: 0022-5223 PMID: 7382533 Document Number: 155109
Backflow from the aorta to the left ventricle during diastole in aortic regurgitation can be reduced by expanding, during diastole, a small air balloon positioned in the ascending aorta downstream to the regurgitant valve. A spherical catheter-mounted balloon, acting as a prosthetic aortic valve for the correction of acute aortic regurgitation, was tested in 12 dogs. This valve was actively inflated and deflated by a common intra-aortic balloon pumping system (Datascope). A significant increase of end-diastolic pressure in the descending aorta = 33.04, P < 0.0001). Contractility indices were not significantly affected during the function of the valve. The spherical valve mounted on a catheter may easily be inserted without thoracotomy for a temporary satisfactory correction of the aortic regurgitation.