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KMID : 1188520180140020116
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Korean Journal of Clinical Oncology
2018 Volume.14 No. 2 p.116 ~ p.119
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The efficacy of chemotherapy in the patients with stage II colon cancer associated with number of high-risk factors
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Kim Min-Joo
Baek Seung-Hyun
Ko Sang-Hwa
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Abstract
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Purpose: This study assessed the effect of chemotherapy over stage II colon cancer in terms of presence of high-risk factors.
Methods: Data were retrospectively reviewed for 364 patients with stage II colon cancer who underwent curative surgery between January 2007 and December 2012. High-risk factors of stage II colon cancer were examined, and the overall survival (OS) rates were analyzed. Survival benefit of adjuvant chemotherapy was also analyzed.
Results: One hundred and fifteen cases had exclusively single high-risk factor and 194 cases were negative for high-risk factors. Postoperative chemotherapy was performed in 262 of 364 patients (72.0%). The 5-year OS was 79.4% and 86.6% for patients without adjuvant chemotherapy and those with chemotherapy, respectively. The 5-year OS was 88.2% and 83.3% for patients having exclusively single high-risk factor with adjuvant chemotherapy and those without chemotherapy, respectively.
Conclusion: Adjuvant chemotherapy for patients with stage II colon cancer having exclusively single high-risk factor could be omitted, weighing up the survival benefit and side effect of chemotherapy.
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KEYWORD
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Colorectal neoplasms, Drug therapy, Survival analysis
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