One patient was treated with diamond duodeno-jejunalstomy, one underwent septum resection and then longitudinal anastomosis, and 14 underwent end-to-back anastomosis.

• 行十二指肠-空肠侧侧菱形吻合1例，隔膜切除肠管纵切横缝1例，闭锁肠段肠切除端斜吻合14例。