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  • Title: Esophagogastric anastomosis with valvuloplasty: an experimental study.
    Author: Cecconello I, Pollara WM, Zilberstein B, Felix VN, Pinotti HW, Raia A.
    Journal: Int Surg; 1982; 67(2):121-4. PubMed ID: 7118468.
    Abstract:
    Twenty dogs divided into two equal groups were studied by the authors in order to evaluate the functional activity and the occurrence of reflux and esophagitis after esophagogastrectomy followed by a simple esophagogastric anastomosis (group A) and associated with an anti-reflux valve mechanism (group B). The functional activity was studied by manometry at the esophagogastric junction and the occurrence of esophagitis by histologic examination of the esophagus after 25 days of histamine gastric acid stimulation. In group A, no high pressure zone between the gastric and esophageal tracings were verified. Reflux and esophagitis which, occurred in all animals, was severe in 70%. In group B, manometry demonstrated that esophagogastropexy creates a high pressure zone. At deglutition this zone showed positive deflections, corresponding to the propagation of the peristaltic wave in the segment of esophagus, encircled by the stomach. Esophagitis, which was detected in 30%, was less severe than that observed in group A.
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