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Published in: Journal of Gastrointestinal Surgery 3/2019

01-03-2019 | Original Article

Oncologic Impact of Lymph Node Dissection for Intrahepatic Cholangiocarcinoma: a Propensity Score-Matched Study

Authors: Sung Hyun Kim, Dai Hoon Han, Gi Hong Choi, Jin Sub Choi, Kyung Sik Kim

Published in: Journal of Gastrointestinal Surgery | Issue 3/2019

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Abstract

Background

Intrahepatic cholangiocarcinoma is a malignancy of the intrahepatic biliary tree. Although surgical resection is the mainstay of treatment for this tumor, the impact of lymph node dissection during hepatectomy is controversial. In this study, we evaluated the impact of lymph node dissection during surgical resection for intrahepatic cholangiocarcinoma.

Methods

Records from 170 patients who underwent radical hepatectomy for intrahepatic cholangiocarcinoma from January 2000 to December 2014 were retrospectively reviewed. Twenty-two patients who underwent R1 resection or had distant metastasis at the time of surgery were excluded. Using propensity score matching (matched factors: differentiation, lymphovascular invasion, perineural invasion, and T stage), the patients were divided into two groups: no dissection (n = 34) or lymph node dissection (n = 34). Disease-free survival and overall survival were compared between groups.

Results

There was a marginally significant difference between the two groups with respect to the disease-free survival (no dissection vs. lymph node dissection: 20.0 [4.2–35.8] months vs. 64.0 [27.3–120.8] months, p = 0.077). Overall survival was significantly longer in the lymph node dissection group (no dissection vs. lymph node dissection: 44.0 [31.1–56.9] months vs. 90.0 [51.1–158.9] months, p = 0.027).

Conclusion

Radical surgery including an adequate lymph node dissection area and suitable harvested lymph nodes appears to improve oncologic outcomes for intrahepatic cholangiocarcinoma.
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Metadata
Title
Oncologic Impact of Lymph Node Dissection for Intrahepatic Cholangiocarcinoma: a Propensity Score-Matched Study
Authors
Sung Hyun Kim
Dai Hoon Han
Gi Hong Choi
Jin Sub Choi
Kyung Sik Kim
Publication date
01-03-2019
Publisher
Springer US
Published in
Journal of Gastrointestinal Surgery / Issue 3/2019
Print ISSN: 1091-255X
Electronic ISSN: 1873-4626
DOI
https://doi.org/10.1007/s11605-018-3899-2

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