• Wilbur B Bowne, Byrne Lee, W Douglas Wong, Leah Ben-Porat, Jinru Shia, Alfred M Cohen, Warren E Enker, Jose G Guillem, Philip B Paty, and Martin R Weiser.
• Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.
• Dis. Colon Rectum. 2005 May 1;48(5):897-909.

PurposeLocoregional recurrence after resection of colon carcinoma is an uncommon and difficult clinical problem. Outcome data to guide surgical management are limited. This investigation was undertaken to review our experience with surgical resection for patients with locoregional recurrence colon cancer, determine predictors of respectability, and define prognostic factors associated with survival.Patients And MethodsA prospective database was queried for patients who had recurrent colon cancer between January 1991 and October 2002. Patients were selected for analysis if they had either isolated resectable locoregional recurrence or concomitant resectable distant disease. Disease-specific survival analysis was performed with the Kaplan-Meier actuarial method, and factors associated with outcome were determined by the log-rank test and Cox regression.ResultsDuring this period of time, 744 patients with recurrent colon cancer were identified and 100 (13.4 percent) underwent exploration with curative intent for potentially resectable locoregional recurrence: 75 with isolated locoregional recurrence, and 25 with locoregional recurrence and resectable distant disease. The median follow-up for survivors was 27 months. Locoregional recurrence was classified into four categories: anastomotic; mesenteric/nodal; retroperitoneal; and peritoneal. Median survival for all patients was 30 months. Fifty-six patients had an R0 resection (including distant sites). Factors associated with prolonged disease-specific survival included R0 resection (P < 0.001); age <60 years (P < 0.01); early stage of primary disease (P = 0.05); and no associated distant disease (P = 0.03). Poor prognostic factors included more than one site of recurrence (P = 0.05) and involvement of the mesentery/nodal basin (P = 0.03). The ability to obtain an R0 resection was the strongest predictor of outcome, and these patients had a median survival of 66 months.ConclusionSalvage surgery for locoregional recurrence colon cancer is appropriate for select patients. Complete resection is critical to long-term survival and is associated with a single site of recurrence, perianastomotic disease, low presalvage carcinembryonic antigen level, and absence of distant disease.

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