[Bronchoscopic diagnosis by means of rigid or flexible optics].

In order to expand the diagnostic potentialities of bronchoscopy and decrease its risk to the patient, the author has combined rigid-tube endoscopy with the flexible fibroscopy over the last 4 years. Rigid optical systems (angulated and straight) afford far better optical quality, whereas the flexible optic oment of the lower lobe. General anesthesia through the bronchoscopy tube lowers patient stress and discomfort and, in contrast to fiberbronchoscopy alone, allows assisted breathing of the high-risk patient.