[Percutaneous endovascular catheter balloon dilatation of mitral and aortic valve stenosis].

An endovascular operative technique of monoballoon valvuloplasty of the mitral and aortal valves through a single transseptal access is proposed. The orientation of the dilating balloon in the inlet and outlet portions of the left ventricle, change of the catheter-dilator is controlled due to a loop of the conductor connecting the right and left parts of the heart. This method of endovascular operative treatment was tested in the process of surgical operations in 34 patients with mitral and aortal stenosis. A considerably greater area of the dilated opening was obtained in 30 patients.