[Positive end-exspiratory pressure for the treatment of respiratory distress syndrome with indirect increase of pressure. Clinical experience with the Pulmarca box (author's transl)].

Harrison could demonstrate the benefit of exspiratory grunting in respiratory distress syndrome. Probably it delays alveolar collapse and promotes gasexchange. Since the publication of Gregory different methods for therapeutic use were practised. Our report deals with own investigations with continous negative chest wall pressure (CNP). Effect, indication and complications are discussed especially.