• S Stättner, R P Jones, V S Yip, K Buchanan, G J Poston, H Z Malik, and S W Fenwick.
• Department of General and Hepatobiliary Surgery, University Hospital Aintree, Longmoor Lane, Liverpool L69 3GA, United Kingdom. s.staettner@salk.at
• Eur J Surg Oncol. 2013 Aug 1; 39 (8): 844-9.

BackgroundAblation with or without resection for colorectal liver metastases has been suggested as a potential method of improving survival if complete surgical resection is not possible. This study assessed the safety and efficacy of surgical microwave ablation (MWA) with or without resection for colorectal liver metastases.MethodsA retrospective case series was reviewed. Data was extracted for all patients treated with open MWA with or without resection for colorectal liver metastases. Endpoints included postoperative 30-day morbidity and mortality, local treatment failure, disease free survival and overall survival.ResultsA total of 43 patients with technically irresectable disease were treated with MWA; 28 underwent combined MWA and resection, whilst 15 underwent MWA as the sole treatment modality. Overall post-operative morbidity was 35%, 30-day postoperative mortality 2%. At a median follow-up of 15 months, local treatment failure was observed in 4% of ablated lesions. 3-year OS was 36% for MWA group, compared to 45% for the combined ablate/resect group with 3-year DFS of 32% and 8% respectively.ConclusionMicrowave ablation with or without resection is a safe and effective method of achieving local disease control. Ablation with or without resection is associated with good long-term outcomes, and may be a suitable treatment option for small non-resectable colorectal liver metastases.Copyright © 2013 Elsevier Ltd. All rights reserved.

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