RECORD OF INTESTINAL MOVEMENT IN CONSCIOUS CATS UNDER UNRESTRAINED CONDITIONS AND INFLUENCES OF SOME GENERAL ANESTHETICS

Abstract

Some times the movement of cats' intestines could not be observed in our research concerning the relation of intestinal blood flow of mesenterial artery to intestinal movement, as recorded by ordinary methods ?? Straub (1), Trendelenburg (2), and others (3) ?? under general anesthesia. It was considered that it might be difficult to record the natural movement of intestines under such conditions because many of anesthetics used decreased or abolished motility. When an experiment was made without general anesthesia by inserting a rubber bag in the lumen of the cats' intestines bound to a holder, the regular movement of the intestines could be observed. However, when the animal raged occasionally it was completely abolished for several minutes, or for about a half hour. So it was deduced that recording the natural movement of the intestines in conscious cats can surely be done if the animal does not rage.
Oettel (4) had carried out some experiments on the intestinal movement of conscious dogs with fistula of the small intestine under unrestrained conditions. G.H. Miller (5) has observed the effects of central anesthesia on the intestinal tract of dogs having a permanent fistula made with a Thiry-Vella loop. Now we have decided to make a permanent fistula of the small intestine in cats and then to observe what influence the anesthetic drugs had on its natural movement.