Proceedings of the International scientific and practical conference ―Oxford International Science Forum‖ (February 6-8, 2026) / Publisher website: www.naukainfo.com. - Oxford, United Kingdom, 2026. - 245 p.

209 Among patients with LC of the II degree, relapse was noted in 12 (24.5%), and 2 of them (4.2%) had LC of the II-III degree. These patients underwent urgent angiography with embolization of the bleeding vessel. Patients with stage III LC underwent emergency tamponade of the bronchus with a hemostatic sponge after visualization of the source of bleeding. Bronchoscopic examination began with the sanitation of the bronchial tree with "icy" saline, introducing it through a catheter passed through the biopsy channel of the endoscope, followed by aspiration. After the source of bleeding was established and its intensity was determined, bronchoobturators were installed in the mouth of the bleeding bronchus in 9 patients. Sanitation bronchoscopies were performed 2 times a week. As a sanitation solution, 1% dioxidine solution was used in 4.2% soda solution in an amount of 60.0-80.0 ml per sanitation. During the endobronchial procedure, the degree of intensity of bleeding was established on the basis of the following endoscopic signs. Thus, for the I stage of LK, liquid blood or clots were visible in the lumen of one lobar or segmental bronchus. For the II stage of LK, the presence of blood in all bronchi of one lung with its predominance in one or another area was characteristic. For the III stage There was thin blood and clots in the bronchi of both lungs. In addition to the generally accepted endoscopic sign of a jet of blood from the segmental bronchus, signs of ongoing pulmonary hemorrhage included the formation of a blood trail from a segmental or segmental bronchus, including from under the thrombus that carries them, as well as the presence of a thrombus carrying the segmental bronchus with a large number of blood traces (smear) in the lower and upper sections of the bronchial tree. It should be emphasized that the Institute's clinic has developed and successfully implemented a method for preventing LC by bronchoscopic temporary occlusion of the bronchi, which is based on the method developed and implemented in our clinic for preventing postoperative complications in patients with indications for elective pulmonectomy. It includes endovascular occlusion of bronchial arteries on the side of bleeding from the lung parenchyma. In this case, the affected lung is collapsed by