This study was funded by the U.S. AGENCY FOR INTERNATIONAL DEVELOPMENT (USAID) under the terms of Cooperative Agreement Number HRN-A-00-98-00012-00 and Subproject number A199.92A. The opinions expressed herein are those of the authors and do not necessarily reflect the view of USAID.
The esogastric anastomotic fistula,occurring after the replacement of esophagus by the stomach, is a post-operative complication always feared and awaited. Apart from other causes, there exist the anatomical dispositions notably the vascular and technical factors that stress this potential risk despite certain advantages of esophagogastroplasty. The goal of our study was to study the arterial distribution of the gastric transplants in order to identify the better modalities of their making. We used 39 stomachs taken from fresh cadavers of autochtone subjects. After a modeling treatment using three different techniques, they were subjected to a radiographic opacification of the right gastro-epiploic artery with sulphate of barium follow by an x-rays in incidence full-face (25 kv, 10 mAS). It was a matter of 15 entire stomachs (E.E.) with denudation of the small curvature, of 12 wide gastric tubes (W.T.) prepared according to the Akiyama technique modified and of 12 narrow tubes (N.T.) tubulized according to the Marmuse method. We studied the anastomotic type of the gastro-epiploic arterial circle according to the classification of Koskas, the collateral branches of the arterial circles of the gastric curvatures, the antral and corporeal anastomosis of these circles and the distribution anastomotic at the level of the summit of the anastomotic. Only 28 pieces (15 E.E., 8 W.T. and 5 N.T.) were able to be the object of a complete angiographic exploitation. The anastomosis of the arterial circle was type I in 64.1% of the cases, type II in 15.4% of the cases, type III in 15.4% of the cases and type IV in 5.1% of the cases. The average number of collateral branches originating from gastro-epiploic arterial circle was respectively 24, 17 and 22 for the E.E., the W.T. and the N.T. Only the two first ones presented collateral branches being borne of the small curvature circle. Fifty per cent of the N.T. did not possess any antral or corporeal anastomosis between the two arterial circles; some of them were even for a quarter of the W.T. In the case of gastric tubulization there existed an irrigation defect of the summit of the plasty for a third of the N.T. and a quarter of the W.T., despite a constant intramural bridge anastomosis between the two gastro-epiploic arteries. The usage of the entire stomach must be recommended for gastric oesophagoplasty; but when the operative indications require a resection of the small curvature it is preferable to use a wide gastric tube whose diameter respects the two left third of the initial width of the organ.
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