The Reconstructed Intestinal Movement after Total Gastrectomy-Recorded with Strain Gage Force Transducer-

Hidehiko Hayashi

First Department of Surgery, Juntendo University School of Medicine

To study the pathophysiology of the reconstructed intestinal movement after total gastrectomy, a dog was given a total gastrectomy and the reconstructed intestinal movement was recorded with a strain gage force transducer. Two reconstruction techniques were used, jejunal interposition and Roux-en Y anastomosis. Two weeks after the jejunal interposition, there was no spread of the interdigestive migrating contractions generated in the interposed jejunum to the anal side of the intestine. At about 5 weeks, however, spreading groups of contractions started to appear, and by 9 weeks almost all the contractions had spread. About 5 weeks after the Roux-en Y anastomosis, interdigestive migrating contractions appeared simultaneously in the duodenum and in the jejunal loop. These results demonstrated that the reconstructed intestinal movement after total gastrectomy with jejunal interposition approachs its physiological condition after 9 weeks. Great care should be taken with feeding until then. In addition, these chages seemed to involve the reconstruction of the intramural autonimic nerve plexus.

Key words
total gastrectomy, jejunal interposition, Roux-en Y anastomosis, strain gage force transducer

Reprint requests
Hidehiko Hayashi First Department of Surgery, Juntendo University School of Medicine
2-1-1 Hongo, Bunkyo-ku, Tokyo, l13 JAPAN

Accepted
June 13, 1990

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