J.Jpn. Surg. Soc.. 83(6): 534-547, 1982
Original article
HEMODYNAMIC STUDIES ON THE HEALING PROCESS OF THE ANASTOMOSED WOUND OF THE INTESTINE IN THE DOG: SPECIAL REFFERENCE TO OXYGEN SUPPLY, DEMAND AND CONSUMPTION
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Second Department of Surgery, Tokyo Medical and Dental Universit Masaki Nagoshi |
After operation, an oxygen imbalance of the anastomotic area was observed. The relative PvO2 of the caudal mesenteric vein draining from the anastomotic area, which was controlled by that of the cranial mesenteric vein, gradually decreased until the 12th day after the operation and returned to the preoperative level on the 21st day. The relative decrease of oxygen supply was considered due to the increase of oxygen demand.
Oxygen consumption was calculated by Fick’s principle based on the blood flow and oxygen content of the caudal mesenteric vessels, and its postoperative changes were examined. The oxygen consumption gradually increased until the 12th day, reaching two fold of the preoperative level. It gradually decreased after the 12th day, but by the 21st day, a significant increment in the oxygen consumption level still persisted.
A comparison between the manual inverted two layer (Albert-Lembert) anastomosis and stapling anastomosis did not reveal a significant difference in the hemodynamics at the anastomotic area, while a slight phasic acceleration of the oxygen consumption was found in the stapling anastomosis.
Excellent healing was obtained with both Albert-Lembert and stapling anastomoses.
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