Radiofrequency ablation is beneficial in simultaneous treatment of synchronous liver metastases and primary colorectal cancer

Joost Hof, Hanneke J Joosten, Klaas Havenga, Koert P de Jong

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Abstract

BACKGROUND: In patients with resectable synchronous colorectal liver metastases (CRLM), either two-staged or simultaneous resections of the primary tumor and liver metastases are performed. Data on radiofrequency ablation (RFA) for the treatment of CRLM during a simultaneous procedure is lacking. The primary aim was to analyze short-term and long-term outcome of RFA in simultaneous treatment. A secondary aim was to compare simultaneous resection with the colorectal-first approach.

METHODS: Retrospective analysis of 241 patients with colorectal cancer and synchronous CRLM between 2000-2016. Median follow-up was 36.1 months (IQR 18.2-58.8 months). A multivariable analysis was performed to analyze the postoperative morbidity, using the comprehensive complication index. A propensity matched analysis was performed to compare survival rates.

RESULTS: In multivariable analysis, the best predictor of lower complication severity was treatment with RFA (p = 0.040). Higher complication rates were encountered in patients who underwent an abdominoperineal resection (p = 0.027) or age > 60 years (p = 0.022). The matched analysis showed comparable overall survival in RFA treated patients versus patients undergoing a liver resection with a five year overall survival of 39.4% and 37.5%, respectively (p = 0.782). In a second matched analysis, 5-year overall survival rates in simultaneously treated patients (43.8%) was comparable to patients undergoing the colorectal first approach (43.0%, p = 0.223).

CONCLUSIONS: RFA treatment of CRLM in simultaneous procedures is associated with a lower complication severity and non-inferior oncological outcome as compared to partial liver resection. RFA should be considered a useful alternative to liver resection.

Original languageEnglish
Article numbere0193385
Number of pages14
JournalPLoS ONE
Volume13
Issue number3
DOIs
Publication statusPublished - 15-Mar-2018

Keywords

  • Journal Article
  • MORBIDITY
  • MORTALITY
  • SIMULTANEOUS RESECTION
  • 2-STAGE HEPATECTOMY
  • RECTAL-CANCER
  • HEPATIC RESECTION
  • OUTCOMES
  • TUMOR
  • RECURRENCE
  • MANAGEMENT

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