ABSTRACT
Hemodynamic findings are analysed in 113 patients with different types of mitral prosthesis. Catheterization of the heart was carried out before the operation and during the late post-operative period. The gradient through the prosthesis was estimated for patients with different types of mitral valve prosthesis during the operation. According to our data, the tilting-disc valve prosthesis MKC-59 and the ball valve prosthesis MKC-25 are associated with the best gradients. Mitral prosthesis improves hemodynamic activity, but does not normalize it. The heart index remains lowered, while the pressure inside the pulmonary capillaries and pulmonary artery remains elevated, as compared to normal levels. Signs of mitral stenosis become more apparent during exercise.
Subject(s)
Heart Valve Prosthesis , Hemodynamics , Adult , Female , Humans , Male , Mitral Valve/surgeryABSTRACT
The clinical picture and the electrocardiographic and rheopneumographic findings were compared with the data obtained during operation or angiopneumography in 31 patients with embolism of the pulmonary artery. In massive embolism of the pulmonary artery, the dominating clinical symptoms were sudden dyspnea, tachycardia and cyanosis. Collapse and cardiac arrest were encountered in most patients. Moderate embolism is characterized by advancing dyspnea but cyanosis and tachycardia are inconsistant symptoms. The results of electrocardiography and rheopneumography are in correlation with the data obtained in catheterization of the heart, angiopneumography and during embolectomy.
Subject(s)
Pulmonary Embolism/diagnosis , Acute Disease , Adult , Aged , Cardiac Catheterization , Female , Humans , Male , Middle Aged , Plethysmography, Impedance , Pulmonary Artery/diagnostic imaging , Pulmonary Circulation , Pulmonary Embolism/surgery , RadiographyABSTRACT
The phonocardiography method is appraised and the correlative dependence of the data yielded by it is compared with the hemodynamic values in the diagnosis of paravalvular fistulas following mitral valve prosthetics in 11 patients. It was revealed that the duration of the interval from the sound of aortic closure to the sound of mitral opening is in close reverse relation (r = -0.61) with the level of the mean pulmonary-capillary pressure: the shorter the interval, the more severe is the disorder of hemodynamics in patients with paravalvular mitral insufficiency and the higher is the mean pulmonary-capillary pressure. Paravalvular fistulas in the 11 patients examined were manifested by the development of a systolic murmur.
