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Evaluation Study
Journal Article
Role of adjuvant chemoradiotherapy for ampulla of Vater cancer.
PURPOSE: To evaluate the role of adjuvant chemoradiotherapy for ampulla of Vater cancer.
METHODS AND MATERIALS: Between January 1991 and December 2002, 118 patients with ampulla of Vater cancer underwent en bloc resection. Forty-one patients received adjuvant chemoradiotherapy [RT(+) group], and 77 did not [RT(-) group]. Postoperative radiotherapy was delivered to the tumor bed and regional lymph nodes, for a total dose of up to 40 Gy delivered in 2-Gy fractions, with a planned 2-week rest period halfway through the treatment period. Intravenous 5-fluorouracil (500 mg/m(2)/day) was given on Days 1 to 3 of each split course. The median follow-up was 65 months.
RESULTS: The 5-year overall survival rate in the RT(-) and RT(+) groups was 66.9% and 52.8%, respectively (p = 0.2225). The 5-year locoregional relapse-free survival rate in the RT(-) and RT(+) groups was 79.9% and 80.2%, respectively (p = 0.9582). When age, type of operation, T stage, N stage, histologic differentiation, and the use of adjuvant chemoradiotherapy were incorporated into the Cox proportional hazard model, there was an improvement in the locoregional relapse-free survival rate (p = 0.0050) and a trend toward a longer overall survival (p = 0.0762) associated with the use of adjuvant chemoradiotherapy. Improved overall survival (p = 0.0235) and locoregional relapse-free survival (p = 0.0095) were also evident in patients with nodal metastasis. In contrast, enhanced locoregional control (p = 0.0319) did not result in longer survival in patients with locally advanced disease (p = 0.4544).
CONCLUSIONS: Adjuvant chemoradiotherapy may enhance locoregional control and overall survival in patients with ampulla of Vater cancer after curative resection, especially in those with nodal involvement.
METHODS AND MATERIALS: Between January 1991 and December 2002, 118 patients with ampulla of Vater cancer underwent en bloc resection. Forty-one patients received adjuvant chemoradiotherapy [RT(+) group], and 77 did not [RT(-) group]. Postoperative radiotherapy was delivered to the tumor bed and regional lymph nodes, for a total dose of up to 40 Gy delivered in 2-Gy fractions, with a planned 2-week rest period halfway through the treatment period. Intravenous 5-fluorouracil (500 mg/m(2)/day) was given on Days 1 to 3 of each split course. The median follow-up was 65 months.
RESULTS: The 5-year overall survival rate in the RT(-) and RT(+) groups was 66.9% and 52.8%, respectively (p = 0.2225). The 5-year locoregional relapse-free survival rate in the RT(-) and RT(+) groups was 79.9% and 80.2%, respectively (p = 0.9582). When age, type of operation, T stage, N stage, histologic differentiation, and the use of adjuvant chemoradiotherapy were incorporated into the Cox proportional hazard model, there was an improvement in the locoregional relapse-free survival rate (p = 0.0050) and a trend toward a longer overall survival (p = 0.0762) associated with the use of adjuvant chemoradiotherapy. Improved overall survival (p = 0.0235) and locoregional relapse-free survival (p = 0.0095) were also evident in patients with nodal metastasis. In contrast, enhanced locoregional control (p = 0.0319) did not result in longer survival in patients with locally advanced disease (p = 0.4544).
CONCLUSIONS: Adjuvant chemoradiotherapy may enhance locoregional control and overall survival in patients with ampulla of Vater cancer after curative resection, especially in those with nodal involvement.
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