National University Ireland Galway, Galway, Ireland.
Royal Perth Hospital, Western Australia, Perth, Australia.
J Surg Oncol. 2023 Mar;127(4):645-656. doi: 10.1002/jso.27139. Epub 2022 Nov 9.
BACKGROUND: Synchronous para-aortic lymph node metastasis (PALNM) in colorectal cancer (CRC) is a relatively rare clinical entity. There is a lack of consensus on management of these patients, and the role of para-aortic lymph node dissection (PALND) remains controversial. This systematic review aims to describe the survival outcomes in colorectal cancer with synchronous PALNM when lymph node dissection is performed. METHODS: A systematic review of Pubmed, Embase and Web of Science databases for PALND in CRC was performed. Studies including patients with synchronous PALNM undergoing resection with curative intent, published from the year 2000 onwards, were included. RESULTS: Twelve retrospective studies were included. Four studies reported survival outcomes for rectal cancer, two for colon cancer and six as colorectal. Survival outcomes for 356 patients were included. Average 5-year overall survival (OS) was 22.4%, 33.9% and 37.7% in the rectal, colon and colorectal groups respectively. Three year OS in the groups was 53.6%, 46.2% and 65.7%. CONCLUSION: There remains a lack of quality data to confidently make recommendations regarding the management of synchronous PALNM in colon and rectal cancer cohorts. Retrospective data suggests a benefit in highly selective cohorts and therefore a case-by-case evaluation remains the standard of care.
背景:结直肠癌(CRC)同步性腹主动脉旁淋巴结转移(PALNM)是一种相对罕见的临床实体。目前对于这些患者的处理方法尚未达成共识,腹主动脉旁淋巴结清扫术(PALND)的作用仍存在争议。本系统评价旨在描述在进行淋巴结清扫术时,CRC 合并同步性 PALNM 患者的生存结局。
方法:对 Pubmed、Embase 和 Web of Science 数据库进行了系统的 PALND 与 CRC 相关研究检索。纳入了 2000 年以来以根治性切除为目的、具有同步性 PALNM 并接受手术的患者的研究。
结果:共纳入了 12 项回顾性研究。其中 4 项研究报告了直肠癌的生存结局,2 项研究报告了结肠癌的生存结局,6 项研究报告了结直肠癌的生存结局。共纳入了 356 例患者。直肠、结肠和结直肠组的平均 5 年总生存率(OS)分别为 22.4%、33.9%和 37.7%。各组的 3 年 OS 分别为 53.6%、46.2%和 65.7%。
结论:目前仍然缺乏高质量的数据来自信地推荐在结直肠癌队列中处理同步性 PALNM。回顾性数据表明,在高度选择的患者中可能有益,因此仍需要根据具体情况进行评估。
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