STUDIES ON THE METHOD TO MEASURE THE LOWER ESOPHAGEAL SPHINCTER AND ON ITS

概要

論文の詳細を見る
Institute of Clinical Medical Science, University of Tsukuba Gastroesophageal resting pressure tracings of 26 normal subjects were used to evaluate the LESP, breadth of the LES, high pressure zone area and the difference between gastricpressure and esophageal pressure. The results obtained are as follows; (1) The maximum pressure measured by noninfused method (3.8±3.0 cm H2O) was significantly lower than the pressure measured by 2.0ml/min infusing method (21.2±8.2 cm H2O). Noninfused method showed many disadvantages in point of recording fidelity. (2) LESP and HPZ area tended to increase with the increasing of infusion rate but reached the uppermost limit, being infused at the rate of 2.0 ml/min. But the difference between gastric and esophageal pressure showed decrease as the infusion rate increased, suggesting accumulation of water in the esophagus which affect esophageal squeeze. (3) Pressure oscillation is caused by respiratory sphincter movement and transmitted pressure from the surrounding abdominal or thoracic cavity and in order to make obsever variations least, scoring method, such as being scored as end expiratory or as end inspiratory, must be defined clearly.
財団法人日本消化器病学会の論文