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[State of the indices of external respiration and hemodynamics in the greater and lesser circulations in hypertension].

Six hundred and ninety patients with hypertensive disease and 37 with hypertensive disease and concomitant chronic pneumonia were examined. It was found that, besides disorders of hemodynamics in systemic circulation, circulatory disorders in pulmonary circulation and disturbances in external respiration develop due to increased tonus of the vessels of the pulmonary artery system and pulmonary arterial hypertension. These disorders appear before the development of left-ventricular insufficiency and increase with the progress of the disease, and their degree correlates with the degree of arterial hypertension of systemic circulation. Concomitant cardiovascular insufficiency aggravates these disorders.