Comparative study of the peculiarities of central hemodynamics before operation and in the early postoperative periods was conducted in 48 patients with lung carcinoma managed by lobe- and pneumonectomy. Lung carcinoma of central localization is characterized by increased contractility of the right-ventricular myocardium. In the postoperative period after pneumonectomy the right ventricle experiences an increased load requiring considerable mobilization of the cardiovascular system. Lobectomy is attended by more marked and less stable changes in the function of the cardiovascular system in the early postoperative period.