[The classification of chronic pleurisy and the limits of its conservative treatment].

The author focuses on the pathoanatomical and pathophysiological aspects of chronic pleuritis, ways of formation of chronic pulmonary heart. The clinico-roentgenologic classification proposed by the author suggests limits to the conservative treatment of pleuritis together with the indications for surgical intervention preventing the above complication. Using the criteria of the author's classification, there have been carried out a total of 211 surgical interventions; of these, 203 were pleurectomies. All patients were discharged from hospital in adequate condition.