Aortic stenoses and pulmonary hypertension

: Authors have been catheterized a total of 36 patients with isolated aortal stenosis. In 14 from them (38%), the mean pression value in pulmonar artery was ranged as over 25 torrs (3.33 kPa). It was proved on the statistical evaluation of hemodynamic data that the pulmonar hypertension is correlated with the pression on the end of diastola of the left ventricle (correlation coefficient r = 0.89), being irrelated of the extent of aortal gradient, bed surface, heart index, age, pulmonar vascular resistence and functional classification. The pression value in pulmonar artery is correlated negatively with the ejection fraction of left ventricle (r = -0.76). Pulmonar hypertension in isolated aortal stenoses is inflicted with functional disorder of left ventricle. The significance of pression value in pulmonar artery is discussed from the scope of indicatory strategy as to provide an urgent surgery, i.e. the exchange of the aortal valve.