承上題，若經過一天之靜脈營養和輸液、注射抗生素及大腸減壓等療法後，病況仍未見改善，則該如何緊急處理較好？

全大腸切除及迴腸直腸吻合術

全大腸切除及迴腸造口術，加上Hartmann’s pouch

大腸直腸肛門全切除及迴腸造口術

全大腸切除及迴腸袋肛門吻合術（Ileal pouch-anal anastomosis）一次完成

FOR UC WITH TOXI MEGACOLON NOT RESPONSIVE TO TREATMENT

ANS B

Hartmann's operation is the surgical resection of the rectosigmoid colon with closure of the rectal stump and colostomy. It was used to treat colon cancer ordiverticulitis.