Abstract
This study was designed to clarify effects of postoperative adjuvant chemotherapy for high-risk Stage Ⅱ colorectal cancer. The subjects were 99 patients with high-risk Stage Ⅱcolorectal cancer who underwent surgery at our department from October 2013 to March 2018. Patients were classified into adjuvant chemotherapy group and nonadjuvant chemotherapy group. Overall survival(OS)and recurrence-free survival(RFS)were analyzed between the 2 groups. Thirty six patients(36.4%)underwent adjuvant chemotherapy. Adjuvant chemotherapy group were younger(p<0.010), had a better ASA-PS(p<0.010), good preoperative Hb(p<0.010), and preoperative Alb(p<0.010)compared to non-adjuvant chemotherapy group. There was no difference between the 2 groups in the high-risk factors for recurrence. Most patient had an oral medication as for adjuvant chemotherapy. There was no difference in OS and RFS between the 2 groups. Postoperative adjuvant chemotherapy for high-risk Stage Ⅱ colorectal cancer did not significantly improve the OS and RFS. Further study is necessary to asses the suitable regimen and patients eligible for chemotherapy.
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