J.Jpn. Surg. Soc.. 58(8): 1159-1190, 1957

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EXPERIMENTAL STUDY OF THE INTESTINAL OBSTRUCTION, CHIEFLY ON THE TRANSPORTATION OF THE INTESTINAL CONTENT FOLLOWING ITS REMOVAL

In making a continuous observation on the transfer of an obstruction (a piece of vinyl or a bead) which is put into the intestine of an experimental animal (dog) upon release of ileus, and giving a statistical disposal to its result, the following findings were obtained :
1. Regarding the beginning time of transfer of obstruction which was put into the intestine after release of a simple and twenty-four continuous hours ileus, it was observed that the transfer had already been started after three hours in case of ileus located in the lower part of the intestine and six hours in the higher and middle position ileus.
2. It was noticed that the lower a ileus position is, the sooner the transfer begins following the release, and the higher the position is, the slower the beginning of transfer becomes.
Regardless of the position where an obstruction is put into, the obstruction approaches the large intestine within six hours in the case of a lower position ileus, nine hours in the case of a middle position and twelve hours in the higher position ileus.
In the case of a duodenal ileus, the dropping speed of an intestinal content after the complete release of ileus is remarkably slower as compared with the case of the same content in the higher position ileus of the small intestine.
3. When the time of ileus is made longer, the dropping speed of the intestinal content becomes slower after release of ileus as compared with a short-time ileus.
4. Comparing the moving speed of intestinal contents after release of ileus according to the position of ileus, it is fast in the higher position and becomes slower as the position gets lower.
5. In the administration of various supplemental solutions or blood transfusion after removal of ileus in the middle part of the small intestine, the transfer of intestinal content was fastest in the case of Ringer's solution, the intra-portal transfusion of the oxygenated blood was the second, and 5% glucose solution was slightly less effective than Ringer's solution.
No significant difference was observed between non-treatment case and the case which was given an intra-portal or intra-venous transfusion of the oxygenated blood and or intra-venous blood transfusion.
6. There was also no significant differ ence noticed between non-treatment case and a case with intra-intestinal supply of the oxygen.
7. No particular change occurred in the case which was given the chemical treatment.
8. Removing the intestinal content off the small intestine after release of a tenty-four hour middle part ileus, the transfer speed of the obstruction is slower as compared with the non-treatment case.
9. When an entero-anastmosis was applied at the same time of releasing ileus, in the both cases of a side-to-side anastmosis and an end-to-end anastmosis, it showed a tendency clearly that the intestinal content passes through the part where the said operation was given after twelve hours since ileus had been released.
10. Making an enterostomy through the middle part ileus of the small intestine and comparing the quantity of the obstruction which was discharged through the enterostomy with the quantity of the same obstruction passed through the part where the same type ileus had been released, in the former case it was remarkably lesser.
(author's abstract)

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