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- W2133755890 abstract "Colorectal cancer is a common malignancy in Europe with approximately 150 000 new cases and 60 000 deaths every year. In Italy, 30 000 new cases are expected annually [1]. Survival for colorectal cancer increased in all European countries from 44% (1986–1989) to 52% (1992–1994), improving equally for men and women, younger and older patients, and rectal and colonic sites. Geographic disparities between European regions persisted according to the results of EUROCARE-3 [2]. It could be that part of the increase in colorectal survival is due to early diagnoses, increase in the resection rate, a decrease in post-operative mortality and finally an increase in the use of adjuvant treatments. This paper discusses the modalities available for adjuvant treatment of high risk colon cancer patients. Surgery is the primary curative treatment of colon cancer, although a high number of patients develop recurrence despite appropriate local therapy. The most important prognostic factor in anticipating the risk of recurrence is the lymph-nodes (LN) involvement at the time of resection. In stage II (LN-) the risk of relapse ranges from roughly 25 –30% and 40 –60% for stage III (LN+).Survival is influenced not only by the presence of positive LN, but also by the number. Wong et al. reported that patients with LN- had significantly fewer LN examined than did node+ patients (14 versus 20 LN) [3]. Le Voyer et al. reported that 5-yr survival was 73% in stage II, if 10 or fewer LN were recovered, whereas that number improved to 87%, an absolute 14% improvement in survival, if more than 20 LN were recovered. At least 14 LN should be examined to accurately stage a patient with colon cancer [4]. The tumour relapses occur in sites distant from the primary tumor: liver, peritoneum, lung and bone. Seventy-four percent of recurrence occurs within the first 3-years. Adjuvant therapy aims to eliminate this residual disease and to increase the disease free interval and overall survival (OS). Approximately 40% of patients are candidates for adjuvant chemotherapy because LN+, while there is a 15 –20% of patients with LNin which there is a large variability in indication for adjuvant treatment." @default.
- W2133755890 created "2016-06-24" @default.
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- W2133755890 date "2005-05-01" @default.
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- W2133755890 title "Adjuvant therapy in colon cancer: which treatment in 2005?" @default.
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- W2133755890 doi "https://doi.org/10.1093/annonc/mdi911" @default.
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