Ichikawa Yasushi, Goto Ayumu, Kobayashi Noritoshi, Ota Mitsuyoshi, Tokuhisa Motohiko, Ishibez Atsushi, Watanabe Jun, Watanabe Kazuteru, Ishikawa Takashi, Tanaka Kuniya, Akiyama Hirotoshi, Fujii Shoichi, Endo Itaru
Hepatogastroenterology. 2013 Nov-Dec;60(128):1945-9.
BACKGROUND/AIMS: The aims of the current retrospective cohort study were to compare OS of the primary resection (R-g) and the non-resection group (NR-g) after 2005.
Ninety-five patients with stage IV colorectal cancer with unresectable distant metastases were divided into 2 groups; R-g; 37 and NR-g; 58.
The only significant difference in clinical factors between the 2 was R0 resection rate (p = 0.007). The MST in R-g was superior to that in NR-g, 30.7 vs. 21.9 months (p = 0.031). After excluding the patients that underwent R0 resection, there was no difference in OS between the 2; however, the MST was 28.6 months in R-g and 17.1 months in NR-g.
The advantage of resection of the primary is still unclear and a well-designed randomized Phase III study is expected. However, the current results suggest that resection of the primary lesion before intensive chemotherapy had some benefit for prognosis.
背景/目的:本回顾性队列研究的目的是比较2005年后原发性切除组(R-g)和非切除组(NR-g)的总生存期(OS)。
95例伴有不可切除远处转移的IV期结直肠癌患者被分为两组:R-g组37例和NR-g组58例。
两组临床因素的唯一显著差异是R0切除率(p = 0.007)。R-g组的中位总生存期(MST)优于NR-g组,分别为30.7个月和21.9个月(p = 0.031)。排除接受R0切除的患者后,两组的OS无差异;然而,R-g组的MST为28.6个月,NR-g组为17.1个月。
原发性肿瘤切除的优势仍不明确,期待设计良好的随机III期研究。然而,目前的结果表明,在强化化疗前切除原发性病变对预后有一定益处。