Pulmonary Physiology.—With the advent of bronchoscopy bronchial movements have been observed and studied. Recently certain observations were made and recorded graphically by Paul Frenckner, who devised a special bronchoscope and carried out bronchospirometric studies.Brighton and Barach1 described the technic of employing the double bronchoscope developed by Frenckner for the study of the ventilation of each lung. The procedure is capable of providing accurate determination of the function of each lung in respect to consumption of the oxygen, the volume of ventilation and the velocity of air movement. Previously reported results indicate that this test is of importance clinically, as, for example, in the demonstration of adequate pulmonic function in cases of pulmonary tuberculosis in which radical collapse of the opposite lung is contemplated. Furthermore, the field of pulmonary physiology is extended by this method, which has made possible the separation of the ventilatory behaviour of each lung.Brunetti2
CLERF LH, PUTNEY FJ. PERORAL ENDOSCOPY. Arch Otolaryngol. 1939;29(4):720–739. doi:10.1001/archotol.1939.00650050768016
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: