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1 Departments of Radiology and Cardiopulmonary Physiology, Ohio Tuberculosis Hospital and the Ohio State University College of Medicine
A simple aerosol anesthesia dispensing device utilizing a metering valve and containing 10 per cent Xylocaine in solution in a Freon propellent has been described. Satisfactory short term topical anesthesia of the pharynx, larynx, and tracheobronchial tree was obtained so that examination of the oropharynx, intubations, laryngoscopy, bronchography, and bronchoscopy could be satisfactorily performed. Administration was rapid, simple, and highly effective. By employing a mean particle size of 5 micron, a hygroscopic agent, and adjusting the characteristics of the nebulizer satisfactory short term oropharyngeal and tracheobronchial anesthesia was obtained.
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