Annals of Hepato-Biliary-Pancreatic Surgery (한국간담췌외과학회지)

The Korean Association of Hepato-Biliary-Pancreatic Surgery (한국간담췌외과학회)
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Can the presence of KRAS mutations guide the type of liver resection during simultaneous resection of colorectal liver metastasis?

  • Munseok Choi (Department of Surgery, Yongin Severance Hospital, Yonsei University College of Medicine) ;
  • Dai Hoon Han (Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Severance Hospital, Yonsei University College of Medicine) ;
  • Jin Sub Choi (Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Severance Hospital, Yonsei University College of Medicine) ;
  • Gi Hong Choi (Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Severance Hospital, Yonsei University College of Medicine)
  • Received : 2021.09.14
  • Accepted : 2022.01.14
  • Published : 2022.05.31
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Abstract

Backgrounds/Aims: It is generally accepted that non-anatomical resection (NAR) in colorectal liver metastasis (CRLM) has comparable safety and efficacy compared to anatomical resection (AR); however, there are reports that AR may have better outcomes in KRAS mutated CRLM. This study aimed to determine the effects of KRAS mutations and surgical techniques on survival outcomes in CRLM patients. Methods: Two hundred fifty patients who underwent hepatic resection of CRLM with known KRAS mutational status between 2007 and 2018 were analyzed. A total of 94 KRAS mutated CRLM and 156 KRAS wild-type CRLM were subdivided by surgical approach and compared for short- and long-term outcomes. Results: In both KRAS wild-type and mutated type, there was no difference in estimated blood loss, postoperative complications, and 30-day mortality. There was no difference in disease-free survival (DFS) between AR and NAR in both groups (p = 0.326, p = 0.954, respectively). Finally, there was no difference in intrahepatic DFS between AR and NAR groups in both the KRAS groups (p = 0.165, p = 0.516, respectively). Conclusions: The presence of KRAS mutation may not be a significant factor when deciding the approach in simultaneous resection of CRLM.

Keywords

References

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