J.Jpn. Surg. Soc.. 56(7): 813-836, 1955

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A STUDY OF THE MOVEMENTS OF THE SMALL INTESTINE, ESPECIALLY OF THOSE ABNORMALIZED IN OBSTRUCTION, BY BIEBL'S LOOP METHOD

The small intestinal movementa in experimental simple obstruction were observed and analysed, and their causes, were studied by BieIb's Ioop method and its modification for observation of the movements and tracing of the external pressuer of the intestine, and by other experimental methods devised for the purposes.
RESULTS
1) In obstruction of a small intestine the intestinal movements orally to the site of of obstruction passed through a course divisible into four periods of initial promoton, disorder, fluctuation and so-called paralysis ; the movements in the areas empty and not distended were inhibited, while the phenomenon of motor synchronization, i,e., simultaneous movements of different detached parts, was seen in the distended areas in and after the third period of obstruction, a stage of fluctuating movements.
2) After vagotomy intestinal movements, peristaltic, segmental and presumably pendulous reduced in mumber and intensity and so-called tonic variation made more marked, while the phenomenon of motor inhibition and that of motor synchronizaton were brought about as invariably and markedly as in cases of experimental obstruction not subjected to neurotomy of any kind.
3) After splanchnicotomy movements of the above described type were promoted, so-called tonic variation obscured, and the phenomenon of motor inhibition was not marked, but the phenomenon of motor synchronization was presented invariably.
4) Intestinal movements occurring after vagotomy and splanchnicotomy perfprmed in conjunction were similar in some respects to those occurring after either vagotomy or splanchnicotomy or when no such operation had been performed―particularly similar to those occurring after splanchnicotomy―accompanied by a very marked appearance of motor synchronization and a rather obscure phenomenon of motor inhibition.
5) The phenomenon of motor fluctuation and that of motorr synchronization were conspicuous in supravital intestin in Tyrode's solution, a subtotally removed Iong strip, with its contents consiting of nearly the whole distended part above the site of obstruction.
6) Interruption of the shifting of contents in a distended area above the site of obstruction put an immediate top to the phenomenon of motor synchronization occurring on the cephalad and the caudad side of the site of intrrruption and removal of the interruption brought back the whole phenomenon at one.
7) A change in the internal pressure in one part of a distended area above the site of obstruction was inariably spread in a moment to all other parts of the area.
8) The foregoing resuits appeared to indicate that the splanchnic nerves play a role in the production of phenomenon of motor inhibition and that the spread of the pressure of intestinal contents is largely concerned in the production of the phenomenon of motor synchronization. (author's abstract)

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