抄録
To evaluate prognostic factors for recurrence after tegafur-uracil plus leucovorin (UFT/LV) adjuvant chemotherapy in patients with colorectal cancer (CRC). Consecutive patients with CRC who received UFT/LV as adjuvant chemotherapy at Showa University Hospital between June 2005 and December 2008 were included in the study, 5-year disease-free survival (DFS) and overall survival (OS) rates were estimated, and prognostic factors for recurrence were analyzed using the Cox proportional hazards model for multivariate analysis. Of 92 patients included in the study, 17 (18.5%) had disease recurrence. The 5-year DFS and OS rates were 82.2% and 91.9%, respectively. In the multivariate analysis, preoperative CA19-9 level＞37U/ml, emergency operation, and T4 lesions were independent significant prognostic factors after treatment with UFT/LV adjuvant chemotherapy. The three independent prognostic factors —T4 lesions, emergency operation, and high preoperative CA19-9 levels— may be useful for decision-making regarding whether patients should receive 5-fluouracil-based or L-oxaliplatin-based adjuvant chemotherapy. As this was a single-institution study with a small number of patients, our findings need to be confirmed in larger multicenter studies.
