Preoperative preparation of patients with lung cancer in advanced stages of the disease as a leading component includes measures to improve the safety of surgery and a favorable course of the process in the immediate postoperative period. They are based on knowledge of changes or disorders, most often associated with operative trauma, resection of the lung and various extrapulmonary lesions, and anesthesia with mechanical ventilation.

Upon admission of patients to the hospital, in each case, it is necessary in the shortest possible time to complete the whole range of diagnostic activities aimed at addressing the issues of treatment tactics and preparing patients for surgical treatment. In this case, most often, the general corrective therapy should begin from the moment of hospitalization of patients. It includes therapeutic measures aimed at improving metabolic processes, sleep and appetite, mood and well-being, reserve capabilities of the vital functions of the body. Subsequently, the duration of preparation for surgery is determined by the nature and severity of the leading disorders and must be strictly individualized. The duration of the operation is determined depending on the effectiveness of the necessary medical measures for the full preparation. Wherein,proceed from the fact that by the time of establishment The diagnosis of lung cancer, especially in the advanced stage of the disease, usually passes a long period of time. A slight increase in the duration of treatment in these patients due to preoperative preparation does not have a significant effect on the biological mechanisms of tumor growth. The thoroughness of preoperative preparation occupies a fundamentally important place in the general system of measures aimed at curing patients. The average length of stay of patients in the clinic before surgery was 10.6 ± 3.7 days. (M ± s ).