[Changes in the parameters of systemic and pulmonary blood circulation in patients with lung cancer during different types of anesthesia].

Central and pulmonary hemodynamic parameters have been studied by total body and transthoracic plethysmography in 60 patients before surgery, after surgery and on the 2nd, 4th and 9th day of the postoperative period. Neuroleptanalgesia and postoperative intramuscular analgesia with analgesics have been performed to control patients. Test patients during surgery and for 18 hours postoperatively have been subjected to upper thoracic epidural anesthesia with trimecaine and morphine. Marked stress hemodynamic reaction in control patients right after surgery and its following gradual inhibition with signs of right ventricular overload corresponded to a complicated clinical course. Reduced right ventricular afterload in test patients, minimum changes in right-ventricular performance and inotropic properties in combination with uncomplicated clinical course make it possible to consider the use of prolonged epidural anesthesia justified in thoracic cancer surgery.