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Schema of PPVPG. I a: Vagus preserved; I b: antral mucosa stripped region; I c: stomach resection region. II a: the antral mucosa 7mm-10mm proximal to the pyloric ring is excised; II b: the distal mucosal edge is sutured round all layers of the cut edge near the greater curvature (stoma for anastomosis); II c: antral seromuscular layer is sutured to the region of anastomosis.
