Long-Term Survival Following Ablation of Colorectal Liver Metastases
Journal of Surgery
Volume 6, Issue 1, February 2018, Pages: 13-18
Received: Dec. 7, 2017; Accepted: Dec. 19, 2017; Published: Jan. 5, 2018
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Authors
Iben Rahbek Andersen, Department of Radiology, Aarhus University Hospital, Aarhus, Denmark
Frank Viborg Mortensen, Department of Surgery, Aarhus University Hospital, Aarhus, Denmark
Jakob Kirkegaard, Department of Surgery, Aarhus University Hospital, Aarhus, Denmark
Finn Rasmussen, Department of Radiology, Aarhus University Hospital, Aarhus, Denmark
Dennis Tønner Nielsen, Department of Radiology, Aarhus University Hospital, Aarhus, Denmark
Daniel Willy Kjaer, Department of Surgery, Aarhus University Hospital, Aarhus, Denmark
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Abstract
Introduction: Ablation of colorectal liver metastases (CRLM) in highly selected patients is an option with curative potential. Patient selection and the ablative technique have continued to improve over the years. This study assessed the trends in long-term survival after ablation of CRLM. Methods: We conducted a register-based cohort study of all patients with CRLM referred to ablative treatment by the multidisciplinary team for hepatic diseases at our institution between 2000 and 2014. Patient data used to calculate estimates of survival was retrieved using national registries. Patients were divided into three subgroups according to time of ablation (2000-2004; 2005-2009, and 2010-2014). Survival was defined as the time from the first ablation procedure until death, censoring or end of the follow-up period (December 31, 2015). Results: 741 CRLM ablations were performed in 444 patients. The estimated 5-year survival from first ablation procedure was for 2000-2004: 18.9% (95% CI: 10.7-28.8%); 2005-2009: 31.1% (95% CI: 24.3-38.2%); and 2010-2014: 53.3% (95% CI: 44.3-61.5%). Log rank test showed a statistically significant difference in the survival between the three subgroups (p < 0.001). Conclusion: Survival rates improved from 2000 to 2014 probably owing to multiple factors, including advances in ablation procedures, oncological therapy, and optimized patient selection.
Keywords
Survival, Ablation, Radiofrequency/RFA, Microwave/MWA, Colorectal Cancer, Liver Metastases
To cite this article
Iben Rahbek Andersen, Frank Viborg Mortensen, Jakob Kirkegaard, Finn Rasmussen, Dennis Tønner Nielsen, Daniel Willy Kjaer, Long-Term Survival Following Ablation of Colorectal Liver Metastases, Journal of Surgery. Vol. 6, No. 1, 2018, pp. 13-18. doi: 10.11648/j.js.20180601.13
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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