Boesby S, Söndergaard E Y, Madsen T
Scand J Gastroenterol. 1978;13(2):149-53. doi: 10.3109/00365527809181741.
Peak oesophageal peristaltic pressure amplitude was recorded in 8 healthy subjects at points 5 and 15 cm proximal to the gastro-oesophageal sphincter, by using an in situ tip-transducer simultaneously with a continuous flush (Intraflo) perfused catheter system with external pressure transducer. Dry swallows and wet swallows of 2.5, 5 and 10ml, respectively, were made in random succession. In all cases the pressures recorded by either system correlated well. In all cases the peristaltic pressure amplitude was significantly higher after the wet swallows. The catheter and flow system used in this study is simple and makes recording of peristaltic pressures independent of the shape of the in situ transducer, and its therefore well suited for measuring the amplitude of oesophageal contractions.
通过使用原位尖端换能器与带有外部压力换能器的连续冲洗（Intraflo）灌注导管系统同时进行，在8名健康受试者的胃食管括约肌近端5厘米和15厘米处记录食管蠕动压力峰值幅度。分别进行2.5毫升、5毫升和10毫升的干吞咽和湿吞咽，顺序随机。在所有情况下，两种系统记录的压力相关性良好。在所有情况下，湿吞咽后的蠕动压力幅度明显更高。本研究中使用的导管和流量系统简单，使蠕动压力的记录独立于原位换能器的形状，因此非常适合测量食管收缩的幅度。
