Abstract
The intraluminal pressure of the oral cavity, pharynx, esophagus and trachea has been measured since late nineteenth century. But the methods employed were troublesome for practical use and the acuracy of the obtained data was doubtful compared to the recent technical standard. For these reasons, the measurement of the intraluminal pressure did not play a role of a routine clinical examination.
Meanwhile, the miniture transducer has been employed for clinical use especially in the cardiovascular fields to measure the blood pressure directly. With this device we can measure intraluminal pressure acurately and safely. We have measured the pharyngoesophageal, subglottic and oral pressures and evaluated the swallowing function and vocal efficiency. In this paper, devices and methods measuring intraluminal pressure and the results were reported.
