Waterman A E, Hashim M A, Pearson H
Department of Veterinary Surgery, University of Bristol, Langford.
J Small Anim Pract. 1995 May;36(5):196-200. doi: 10.1111/j.1748-5827.1995.tb02894.x.
The effect of body position on lower oesophageal sphincter pressure (LOSP), gastric pressure and barrier pressure (BrP) was investigated in 40 dogs anaesthetised for neutering procedures. The dogs were placed in lateral recumbency followed by dorsal recumbency (group 1) or vice versa (group 2). LOSP decreased significantly in the animals which were positioned initially in lateral recumbency, when they were then placed in dorsal recumbency, while those initially positioned in dorsal recumbency showed no significant change in their LOSP or BrP when their position was altered to lateral recumbency. When the data from both groups were pooled, LOSP and BrP were significantly lower when the dogs were in dorsal compared to lateral recumbency (P < 0.05).
对40只因绝育手术而麻醉的犬进行了研究，以探讨体位对食管下括约肌压力（LOSP）、胃内压和屏障压（BrP）的影响。将犬置于侧卧位，然后改为仰卧位（第1组），或反之（第2组）。最初处于侧卧位的动物，当改为仰卧位时，LOSP显著降低；而最初处于仰卧位的动物，当体位改为侧卧位时，其LOSP或BrP无显著变化。当两组数据合并时，犬处于仰卧位时的LOSP和BrP显著低于侧卧位（P<0.05）。
