• Aurélien Dupré, Robert P Jones, Rafael Diaz-Nieto, Stephen W Fenwick, Graeme J Poston, and Hassan Z Malik.
• Liverpool Hepatobiliary Centre, Aintree University Hospital, Longmoor Lane, Liverpool L9 7AL, UK; Centre Léon Bérard, Department of Surgical Oncology, Lyon, F-69008, France. Electronic address: aurelien.dupre@lyon.unicancer.fr.
• Eur J Surg Oncol. 2017 Oct 1; 43 (10): 1901-1907.

BackgroundLiver-limited recurrence after resection of colorectal liver metastases is a frequent occurrence, and can in some cases be treated with curative intent. Although surgical re-resection remains standard of care, there is growing interest in the role of ablation in this setting. The aim of this study was to compare the outcomes after curative-intent ablation and resection in patients with recurrent colorectal liver metastases.MethodsWe retrospectively analysed data from 366 consecutive patients who underwent liver resection for colorectal liver metastases between June 2010 and August 2015. Sixty-four developed liver-limited recurrence which was treated with curative intent, thirty-three (51.6%) by ablation and 31 (48.4%) by repeat resection.ResultsPatient groups were well matched, with surgically resected patients showing higher pre-operative carcinoembryonic antigen levels and larger metastases. There were fewer post-operative complications and shorter length of stay in the ablation group (p < 0.02). After a median follow-up of 36.2 months, median overall survival was the same for both the resected and ablated groups at 33.3 months. Median progression-free survival was longer for patients treated with surgery (10.2 months) compared to ablation (4.3 months) (p = 0.002).ConclusionsAblation or resection for liver-limited recurrence after surgery for colorectal liver metastases is associated with improved overall survival compared with systemic chemotherapy alone, and should always be considered for patients with resectable liver recurrence. Although ablation seemed to be associated with a shorter progression-free survival, post-procedure morbidity was significantly lower. The choice between ablation and resection should therefore be made on a personalised basis.Copyright © 2017 Elsevier Ltd, BASO ~ The Association for Cancer Surgery, and the European Society of Surgical Oncology. All rights reserved.

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