The Upper Esophageal Sphincter during Normal Deglutition
The Upper Esophageal Sphincter during Normal Deglutition
复制标题
正常吞咽期间的上食管括约肌
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
H. Schiratzki
中科院分区：
文献类型：
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作者：
A. Isberg;M. Nilsson;H. Schiratzki
采用同步放射电影摄影和测压法研究了7名健康受试者吞咽时的食管上括约肌。压力测量装置由3个传感器组成，放置在远端，间隔10 mm。它们以15至45度的角度向右倾斜记录压力。在吞咽过程中，由于括约肌和压力测量装置的不同步运动，最初放置在括约肌的高压区中的压力传感器容易滑出位置。这些移动可能导致压力记录的错误解释。因此，在整个吞咽过程中进行连续的放射学监测似乎是强制性的。在食团进入上食管括约肌之前，括约肌松弛，记录到低压甚至负压。当食团通过时，括约肌逐渐收缩，恢复吞咽前的压力。
The upper esophageal sphincter was studied during deglutition in 7 healthy subjects using simultaneous cineradiography and manometry. The presssure measuring device consisted of 3 sensors distally placed, and separated by 10 mm. They recorded pressure obliquely to the right at an angle of 15 to 45 degrees anteriorly. During the swallowing sequence a pressure sensor initially placed in the high pressure zone of the sphincter easily slid out of position due to asynchronous movements of the sphincter and the pressure measuring device. These movements can result in erroneous interpretation of pressure recordings. Continuous radiologic monitoring during the entire swallowing sequence thus seems to be mandatory. Immediately before the bolus entered the upper esophageal sphincter, the sphincter relaxed and low or even negative pressures were registered. When the bolus had passed onwards the sphincter contracted gradually, to resume its pre-swallow pressure.