Thorakoskopie und Thorakokaustik.

This describes the Jacobaeus thoracoscopic cautery method of controlling of adhesions which prevent complete collapse of the tuberculous lung by artificial pneumothorax. The principles of optics involved in the use of different types of thoracoscopes are discussed and the auxiliary equipment is listed. The normal and the pathologic anatomy of the pneumothorax cavity as seen through the thoracoscope is described, with particular reference to different types of adhesions preventing complete pneumothorax collapse and to the differentiation of the types suitable for cautery division. The technic of the operation is described in detail. The authors report 71 per cent of successful results following 331 operations on 272 patients treated during a period of twelve years. The method was "without results" in 21 per cent of the patients and was followed by empyema in 4.2 per cent, by perforation of the lung in 1.1 per cent, and by pleural effusion and eventual