对位置较低无法切除的十二指肠,横断十二指肠后,如溃疡近侧十二指肠太短,用习惯的内翻包埋两层缝合法缝合残端困难,张力过大常撕裂肠壁发生残端瘘。本文采用残端粘膜及浆肌层两层分别普通连续缝合,可避免十二指肠瘘的发生。对紧靠幽门疤痕巨大的球部溃疡,可于溃疡近侧1 cm处离断胃窦.对残留的胃窦粘膜用30％硝酸银涂擦以破坏G细胞,然后用上法缝合残端。经动物实验观察和临床应用,结果 For the lower duodenum, which cannot be resected, after the duodenum crosses, if the proximal part of the duodenum is too short, it is difficult to sew the stump with conventional varus embedding and two layers of suturing. The tension is too large. Tear wall spasm occurs stump. This article uses stump mucosa and pulp muscle layer of two consecutive ordinary suture, to avoid the occurrence of duodenal fistula. For giant bulbous ulcers immediately adjacent to the pylorus scar, the gastric antrum can be severed 1 cm proximal to the ulcer. The residual antral mucosa is rubbed with 30% silver nitrate to destroy G cells, and then the stumps are sutured. Through animal experiments and clinical applications, the results