jejunojejunostomy

例句：

1. 1. The patient underwent a jejunojejunostomy to treat his chronic constipation.
   患者接受了结直肠吻合术来治疗他的慢性便秘。
2. 2.The surgery was performed to relieve the patient's symptoms and improve his quality of life.
   手术是为了缓解患者的病症和提高其生活质量。
3. 3. The procedure is typically used in cases where the patient has undergone previous gastric bypass surgery.
   这种手术通常用于已经接受过胃旁路手术的患者。