
美國外科醫學會2026年臨床年會發表研究顯示,接受闌尾切除手術的急性闌尾炎患者,後續大腸直腸癌相對風險比單純接受抗生素治療者低58%。研究分析超過3萬名患者數據,手術組後續罹癌率0.7%,抗生素組為1.7%。研究者指出可能機制包括病理檢查發現潛在病變、移除發炎組織及對腸道菌群和免疫環境的影響,但強調結果不代表所有闌尾炎患者應選擇手術預防癌症。
AI-generated summary
急性闌尾炎(俗稱盲腸炎)除了接受闌尾切除手術,部分患者也可採取抗生素治療。過去治以手術為主,但近年研究探討抗生素療法的可行性。此次研究比較兩種治療方式後續大腸直腸癌風險的差異。
2026/09/29 11:34
闌尾發炎示意圖。研究發現,闌尾炎患者接受手術或抗生素治療後,後續大腸直腸癌風險出現差異。(圖取自Wikimedia Commons)
〔編譯陳成良/綜合報導〕急性闌尾炎(俗稱盲腸炎)除了接受闌尾切除手術,部分患者也可採取抗生素治療。一項針對逾3萬名患者的大型回溯性配對研究發現,接受闌尾切除手術者,後續被診斷出大腸直腸癌的相對風險,比單純接受抗生素治療者低58%。
醫學新聞網站《Medical Xpress》25日刊出美國外科醫學會(American College of Surgeons,ACS)提供的研究資訊,這項研究於ACS 2026年臨床年會發表。研究團隊利用涵蓋168家醫療機構的全球資料庫,比對1萬5616名接受闌尾切除手術者與1萬5295名接受抗生素治療者,分析兩組後續大腸直腸癌診斷情況。
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分析顯示,排除研究結果前已診斷大腸直腸癌者後,手術組共有0.7%後續被診斷出大腸直腸癌,抗生素組則為1.7%,換算後手術組的後續相對罹癌風險低58%。
罹癌風險為何較低? 研究提出3種可能
研究資深作者、美國莫爾豪斯醫學院外科教授恩馮薩姆(Valentine Nfonsam)表示,兩者之間的確切機制仍不清楚,可能包括闌尾切除後的病理檢查有機會發現潛在病變、移除可能持續引發發炎的組織,以及闌尾切除對腸道菌群與局部免疫環境產生的影響。
研究也指出,急性闌尾炎本身可能是尚未診斷的大腸直腸癌早期表現,例如右側大腸腫瘤阻塞闌尾引流,可能先以急性闌尾炎呈現。因此,研究結果不能解讀為所有闌尾炎患者都應接受手術以預防癌症;患者治療仍須依年齡、家族病史、遺傳傾向及其他大腸癌風險因素評估。
這項研究目前是在ACS 2026年臨床年會科學論壇發表的研究摘要,經大會審查與選擇,但尚未經同儕審查期刊正式刊登。
AI outlook — possibilities, not facts
未來闌尾炎治療指南可能將長期癌症風險納入決策考量因素
Likely · Within months

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