Abstract
Background
The importance of preoperative chemotherapy in a multimodality management of patients with colorectal liver metastases (CRLM) has been demonstrated. We analyse the carcinoembryonic antigen (CEA) changes following neoadjuvant chemotherapy in patients with CRLM who underwent liver resection.
Methods
The final cohort included 107 eligible patients. Increased CEA levels following neoadjuvant chemotherapy were defined as the increase of baseline CEA level at diagnosis of CRLM compared with the CEA level after completion of neoadjuvant chemotherapy. Disease-free survival (DFS), post-recurrence survival (PRS) and overall survival (OS) were calculated using both Kaplan-Meier and multivariate Cox-regression methods.
Results
CEA increase was associated with decreased PRS and OS (HR 2.69; 95 % CI, 1.28–5.63; p = 0.009, and HR 2.50; 95 % CI, 1.12–5.56; p = 0.025, respectively) in multivariate analysis, but there was no association between CEA changes and DFS. CEA increase was only associated with disease progression during preoperative chemotherapy (p = 0.014). Interestingly, this association was not absolute, as only 5 of the 11 patients with disease progression demonstrated CEA increase. Regarding the remaining 12 patients with CEA increase, according to RECIST criteria, eight patients demonstrated partial response and four patients stable disease.
Conclusion
In this study, we demonstrated the CEA increase following neoadjuvant chemotherapy as an adverse prognostic factor for PRS, and OS but not for DFS in patients undergoing liver resection for liver-only colorectal metastases.
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Authors’ contributions
Kyriakos Neofytou: conception and design of research, preparation of manuscript, statistical analysis
Alexandros Giakoustidis: conception and design of research, preparation of manuscript
Mafalda Costa Neves: preparation of manuscript
Dawn Morrison: preparation of manuscript
Dimitris Giakoustidis: critical review of manuscript
Aamir Z Khan: critical review of manuscript
Justin Stebbing: critical review of manuscript
Satvinder Mudan: conception and design of research, preparation of manuscript, critical review and approval of manuscript
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This article does not contain any studies with human participants or animals performed by any of the authors.
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Supported by the National Institute for Health Research Royal Marsden/Institute for Cancer Research Biomedical Research Centre
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All the authors declare no conflict of interest related to the present research.
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Mr. Neofytou and Mr. Giakoustidis contributed equally.
Synopsis
We analyse the CEA changes following neoadjuvant chemotherapy in patients with CRLM who underwent liver resection. CEA increase following neoadjuvant chemotherapy appears to be an independent prognostic factor associated with both PRS and OS in patients with liver-only colorectal metastases who undergo curative liver resection.
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Neofytou, K., Giakoustidis, A., Neves, M.C. et al. Increased carcinoembryonic antigen (CEA) following neoadjuvant chemotherapy predicts poor prognosis in patients that undergo hepatectomy for liver-only colorectal metastases. Langenbecks Arch Surg 402, 599–605 (2017). https://doi.org/10.1007/s00423-016-1415-2
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DOI: https://doi.org/10.1007/s00423-016-1415-2