[國考] 申覆 醫學五 35
35 承上題,治療這樣的病人,應該用什麼方式較好?
(A)抗生素治療
(B)切除部分大腸即可,不須留置3天以上的尿管
(C)切除鲴管及部分大腸,並作大腸直腸吻合,加上留置導尿管1週或修補膀胱
(D)只須切除部分膀胱或加上截石即可
標準答案:(C)
疑義要點及理由:
上題所描述症狀,最可能的診斷是大腸憩室炎,但也不能排除是大腸直腸癌症。由
於題目並未給出明確診斷或補充說明造成colovesical fistula的病因,依據Sabiston
Textbook of Surgery,懷疑病患有大腸憩室炎併發colovesical fistula,建議在手術之
前安排電腦斷層或colonoscopy以進一步確診或排除惡性腫瘤,再決定下一步治療計畫。
依題意”治療這樣的病人”,診斷可能是大腸憩室炎,但也不能排除是大腸直腸癌症
,而憩室炎與惡性腫瘤治療方式並不相同,選項中並沒有”安排檢查以進一步確診”,故
建議此題送分
參考資料:
Sabiston Textbook of Surgery, 19th ed, p.1313
Diagnostic steps should be taken to confirm the cause of the fistula before a
definitive operation is undertaken. A colonoscopy should be done to examine
the sigmoid mucosa and exclude colon cancer or Crohn's disease as the cause
of the fistula. Every effort should be made to rule out cancer because the
operation for a sigmoid-vesicular fistula secondary to sigmoid cancer
requires en bloc excision of the involved organs, a more extensive operation
than that required to interrupt the nonmalignant fistula and excise the
diseased (but benign) sigmoid colon.
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