Tasaka K, Farrar J T
Pflugers Arch. 1976 Jun 29;364(1):35-44. doi: 10.1007/BF01062909.
Intraluminal pressure recordings have been performed in 14 unanesthetized dogs via a Mann-Bollman fistula by means of an air-filled balloon catheter system and a water-filled catheter system. The dynamic response is adequate for studying intraluminal pressures of the small intestine. Resting pressures in the proximal, middle and distal jejunum averaged approximately 6 mm Hg above atmosphere and no appreciable differences were noted between the different areas. The contraction time of simple, monophasic waves was fairly constant (approximately 1.0 s in duration) and usually unrelated to amplitude of the wave. Propulsion of intraluminal contents occurred in the absence of complex (type III) waves. A pressure wave in a proximal segment of jejunum was temporally related to a wave occurring 5 cm distally. The mean intervals between the proximal and distal contractions were: 0.42 s in the proximal jejunum; 0.74 s in the middle jejunum; 1.56 s in the distal jejunum; 2.79 s in the ileum. These time lags have a log normal distribution. The length of the physiologic segment in the jejunum of the dog varied from 1.0-8.0 cm and was usually 2-4 cm.
通过一个充满空气的球囊导管系统和一个充满水的导管系统，经曼-博尔曼瘘管对14只未麻醉的狗进行了腔内压力记录。其动态反应足以用于研究小肠腔内压力。空肠近端、中部和远端的静息压力平均比大气压高约6毫米汞柱，不同区域之间未观察到明显差异。简单单相波的收缩时间相当恒定（持续时间约为1.0秒），且通常与波幅无关。在没有复合波（III型波）的情况下，腔内内容物发生推进。空肠近端的一个压力波在时间上与距其远端5厘米处出现的一个波相关。近端和远端收缩之间的平均间隔为：空肠近端0.42秒；空肠中部0.74秒；空肠远端1.56秒；回肠2.79秒。这些时间滞后呈对数正态分布。狗空肠中生理节段的长度在1.0 - 8.0厘米之间变化，通常为2 - 4厘米。
