The article discusses the causes of intraoperative and postoperative bleeding from vessels forming in the adhesions between the mantle of the lung, the costal pleura, the mediastinum, and the diaphragm. The authors applied successfully temporary tamponade of the pleural cavity with hemostatic sponge, collagen film, and gauze tampons in 25 patients who underwent pulmonary pleuropulmonectomy. The method is simple and may be successfully applied under any conditions, both in specialized and in ordinary surgical departments.