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Risk Factors Associated with Loco-Regional Failure after Surgical Resection in Patients with Resectable Pancreatic Cancer.

Authors
 Hyun Ju Kim  ;  Woo Jung Lee  ;  Chang Moo Kang  ;  Ho Kyoung Hwang  ;  Seung Min Bang  ;  Si Young Song  ;  Jinsil Seong 
Citation
 PLoS One, Vol.11(6) : e0157196, 2016 
Journal Title
 PLoS One 
Issue Date
2016
MeSH
Adult ; Aged ; Aged, 80 and over ; Disease-Free Survival ; Female ; Humans ; Male ; Middle Aged ; Neoplasm Recurrence, Local/pathology* ; Pancreatic Neoplasms/surgery* ; Prognosis ; Risk Factors
Abstract
PURPOSE: To evaluate the risk factors associated with loco-regional failure after surgical resection and to identify the subgroup that can obtain benefits from adjuvant radiotherapy (RT). MATERIALS AND METHODS: We identified patients treated with surgical resection for resectable pancreatic cancer at Severance hospital between January 1993 and December 2014. Patients who received any neoadjuvant or adjuvant RT were excluded. A total of 175 patients were included. Adjuvant chemotherapy was performed in 107 patients with either a gemcitabine-based regimen (65.4%) or 5-FU based one (34.9%). RESULTS: The median loco-regional failure-free survival (LRFFS) and overall survival (OS) were 23.9 and 33.6 months, respectively. A recurrence developed in 108 of 175 patients (61.7%). The predominant pattern of the first failure was distant (42.4%) and 47 patients (26.9%) developed local failure as the first site of recurrence. Multivariate analysis identified initial CA 19-9 ≥ 200 U/mL, N1 stage, perineural invasion (PNI), and resection margin as significant independent risk factors for LRFFS. Patients were divided into four groups according to the number of risk factors, including initial CA 19-9, N stage, and PNI. Patients exhibiting two risk factors had 3.2-fold higher loco-regional failure (P < 0.001) and patients with all risk factors showed a 6.5-fold increase (P < 0.001) compared with those with no risk factors. In the analysis for OS, patients with more than two risk factors also had 3.3- to 6-fold higher risk of death with statistical significance. CONCLUSION: The results suggest that patients who exhibit more than two risk factors have a higher risk of locoregional failure and death. This subgroup could be benefited by the effective local adjuvant treatment.
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DOI
10.1371/journal.pone.0157196
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Chang Moo(강창무) ORCID logo https://orcid.org/0000-0002-5382-4658
Kim, Hyun Ju(김현주)
Bang, Seungmin(방승민) ORCID logo https://orcid.org/0000-0001-5209-8351
Seong, Jin Sil(성진실) ORCID logo https://orcid.org/0000-0003-1794-5951
Song, Si Young(송시영) ORCID logo https://orcid.org/0000-0002-1417-4314
Lee, Woo Jung(이우정) ORCID logo https://orcid.org/0000-0001-9273-261X
Hwang, Ho Kyoung(황호경) ORCID logo https://orcid.org/0000-0003-4064-7776
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/147121
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