OBJECTIVE: To evaluate the role of intraoperative ablation as an adjunct to resection in patients with recurrent colorectal liver metastases (rCLM). METHODS: All patients undergoing curative-intent reoperative surgery for rCLM from 1992 to 2009 at a tertiary cancer center were included. Overall survival (OS) and recurrence-free survival (RFS) were compared between patients treated with resection alone or in combination with ablation. RESULTS: A total of 112 reoperative hepatectomies were performed, of which 16 were combined with ablation. The proportion of patients treated with resection and ablation increased from 0% to 41%. Patients undergoing resection and ablation had a greater tumor burden (median, 4 vs. 1, p < 0.0001) and higher baseline clinical risk scores (median, 3 vs. 2, p = 0.065) than patients undergoing resection alone. Patients undergoing resection and ablation had lower intraoperative blood loss than patients undergoing resection alone (344 vs. 877 ml, p = 0.018). Five-year OS from the time of surgery was 48.6%. In multivariable analysis, there was no significant difference in OS or RFS based on the treatment modality. CONCLUSION: In patients with rCLM, the use of intraoperative ablation can extend the limits of surgical resection in patients with disease that might otherwise not be amenable to complete resection.
OBJECTIVE: To evaluate the role of intraoperative ablation as an adjunct to resection in patients with recurrent colorectal liver metastases (rCLM). METHODS: All patients undergoing curative-intent reoperative surgery for rCLM from 1992 to 2009 at a tertiary cancer center were included. Overall survival (OS) and recurrence-free survival (RFS) were compared between patients treated with resection alone or in combination with ablation. RESULTS: A total of 112 reoperative hepatectomies were performed, of which 16 were combined with ablation. The proportion of patients treated with resection and ablation increased from 0% to 41%. Patients undergoing resection and ablation had a greater tumor burden (median, 4 vs. 1, p < 0.0001) and higher baseline clinical risk scores (median, 3 vs. 2, p = 0.065) than patients undergoing resection alone. Patients undergoing resection and ablation had lower intraoperative blood loss than patients undergoing resection alone (344 vs. 877 ml, p = 0.018). Five-year OS from the time of surgery was 48.6%. In multivariable analysis, there was no significant difference in OS or RFS based on the treatment modality. CONCLUSION: In patients with rCLM, the use of intraoperative ablation can extend the limits of surgical resection in patients with disease that might otherwise not be amenable to complete resection.
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