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Significance of Cancer Cells at the Vein Edge in Patients with Pancreatic Adenocarcinoma Following Pancreatectomy with Vein Resection

  • Original Article
  • Published:
Journal of Gastrointestinal Surgery

Abstract

Background

Resection of the superior mesenteric and/or portal vein (SMV-PV) is increasingly performed with pancreatectomy for adenocarcinoma. We sought to analyze the impact of cancer at the transected edge(s) of the vein wall.

Methods

Patients who underwent pancreatectomy with vein resection between 2003 and 2015 at a single center were evaluated. R1 resection was defined per guidelines from the American Joint Commission on Cancer and the College of American Pathologists. Specimens were also evaluated for the presence (V+) or absence (V−) of cancer cells at the transected edge(s) and depth of vein invasion.

Results

Among 127 evaluated patients, 114 (90%) received preoperative therapy. R-status was categorized as margin-negative (R0)/V− (n = 72, 57%), R0/V+ (n = 19, 15%), margin-positive (R1)/V− (n = 24, 19%), and R1/V+ (n = 12, 9%). Patients with V− specimens had similar median durations of recurrence-free survival (RFS) (12 vs 9 months) and overall survival (OS) (30 vs 28 months) as did patients with V+ specimens (P > 0.05). In contrast, cancer invasion into the lumen was associated with RFS and OS (P < 0.05). Among patients who underwent R0 resection, V-status had no association with OS, RFS, or local control (P > 0.05).

Conclusion

Cancer invasion into the superior mesenteric and/or portal vein was adversely associated with survival, but cancer at the vein edge(s) was not. Transection of the SMV-PV through macroscopically normal vein may be performed to minimize resected vein length without fear of negatively affecting oncologic outcomes.

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Acknowledgments

The authors would like to thank Tamara K Locke and the department of scientific publications at the University of Texas MD Anderson Cancer Center for editorial support.

Funding

This study was supported by the NIH/NCI under award number P30CA016672.

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All authors met all four requirements for authorship, including substantial contributions to the conception or design of the work or the acquisition, analysis, or interpretation of data for the work; drafting the work or revising it critically for important intellectual content; final approval of the version to be published; agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

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Correspondence to Matthew H. G. Katz.

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Supplementary figure 1

The neoadjuvant therapy regimens in this study. Gy, gray; fr, fractions; FOLFIRINOX, fluorouracil, irinotecan, leucovorin and oxaliplatin; 5 –FU, fluorouracil (DOCX 58.4 kb)

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Prakash, L.R., Wang, H., Zhao, J. et al. Significance of Cancer Cells at the Vein Edge in Patients with Pancreatic Adenocarcinoma Following Pancreatectomy with Vein Resection. J Gastrointest Surg 24, 368–379 (2020). https://doi.org/10.1007/s11605-019-04126-y

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