[First experiences with neodymium-YAG laser treatment of tracheal and bronchial diseases]. / Elsö tapasztalatok a légcsö és a nagyhörgök neodymium-Yag laser kezelésével.

The authors describe their first three years experiences with the Neodymium-Yag Laser in tracheobronchial diseases. The treatments were performed with the MEDI-YAG equipment constructed in Hungary. According to the indication, local and/or general anaesthesia and generally the rigid bronchoscope was used. 38 tracheal, 34 main bronchial, 5 lobar and 2 distal alterations were treated. In case of tracheobronchial malignancy 3 complete and 20 partial recoveries were registered out of 45 patients; among benign tumours 7 complete and 4 partial recoveries out of 14 patients. In tracheal stenosis cases 12 complete and 4 partial recoveries came out of 18 patients. It can be stated that the Yag Laser treatment completes the bronchologist's instrumentation. The treatment may be curative in tracheal stenosis and benign tumours and palliative in malignancy by setting free the tracheobronchial system for ventilation. It may also prepare the patient for surgery and complete the complex treatment.

[Scanning electron microscopic study of human bronchial mucosa under normal and pathological conditions]. / Human bronchus nyálkahártya scanning elekronmikroszkópos vizsgálata ép és kóros körülmények között

Scanning electronmicroscopic picture of the normal human bronchial mucosa and alterations of it in chronic bronchitis are described. According to the author's findings in chronic bronchitis the regular arrangement of cilia disappears, the number of them decreases and they become shortened with a club-like formation on the end. Focal destruction of the cilia can also be seen. In the epithelium of the mucosa number of the cells without cilia increases. This is a consequence of the destruction of the cilia on one hand, and increase of the number of mucus secreting goblet cells on the other. Alterations of the bronchial mucosa in chronic bronchitis revealed by scanning electron microscopy may play an important part in the pathogenesis and persistence of chronic bronchitis of different origine.