The occurence of postoperative hemorrhage after pancreatic cystogastrostomy may be iatrogenic in origin. A continuous, hemostatic suture applied to the margins of the cystogastric stoma appears to be associated with an increased incidence of bleeding. An explanation for this apparent contradictory behaviour may be that the continuous suture interferes with the flap valve action of the gastric mucosa, thus facilitating gastrocystic reflux with corrosive gastric acid contacting the cyst wall. The application of the technical criteria based upon experimental data to the performance of cystogastrostomy is associated with a low morbidity and mortality.
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