Abstract
OBJECTIVE: The authors performed a study to see if gastric seromuscular patch elevation is anatomically feasible and to estimate the maximum size of the patch relative to its blood supply. SUMMARY BACKGROUND DATA: A flap composed of greater omentum and a full-thickness segment of the greater curvature of the stomach, based on the right gastroepiploic artery, was first described in 1977. Elevation of the greater omentum along with a seromuscular patch of stomach has not been reported previously. METHODS: Angiography was performed via the right gastroepiploic artery in a stomach obtained from ten patients who underwent gastrectomy, then india ink was injected. The stomach was then fixed in 10% formalin, and histochemical examination was performed to determine if seromuscular patch elevation was possible. RESULT: Results of the angiography and injection experiment of india ink indicated that the territory of a single gastric ramus was approximately 5 cm x 5 cm in both anterior and posterior walls of the stomach. Histology revealed that the gastric rami lay between the muscular layer and the mucosa. CONCLUSION: The authors believed that a composite gastric seromuscular patch and omental pedicle flap would be clinically applicable. The authors also believed that the maximum size of the patch was 10 cm x 10 cm. They used this flap to successfully treat three patients with chronic soft-tissue defects--two bronchopleural fistulae and a radiation ulcer.
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