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KMID : 0614620080510030181
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Korean Journal of Gastroenterology
2008 Volume.51 No. 3 p.181 ~ p.189
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The Prognostic Factors of Pancreatic Cancer Can be Different according to Clinical Stages
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Kim Yoon-Ji
Seo Dong-Wan
Pack Kwan-Mi
Jeong Eun-Heui
Kim Song-Cheoll
Han Duck-Jong
Lee Sang-Soo
Lee Sung-Koo
Kim Myung-Hwan
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Abstract
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Background/Aims: The prognosis of patients with pancreatic cancer remains very poor. Although many studies have evaluated the prognostic factors of pancreatic cancer, their results are inconclusive because of different inclusion criteria, tumor stages, and treatment modalities. This large scale retrospective analysis was performed to assess whether active treatment of pancreatic cancer, even in its advanced stage, could improve patients` survival. In addition, we sought to identify factors associated with favorable prognosis of pancreatic cancer.
Methods: Between 1994 and 2004, a total of 971 patients with pancreatic cancer were treated at Asan Medical Center. The patients were classified into three groups according to clinical stages: resectable (RE, n=226), locally advanced (LA, n=409), and far advanced (FA, n=336). Treatment response and prognostic factors for survival were analyzed in each group.
Results: Compared to supportive care, active treatment significantly increased the median survival time in all groups (RE: 18.0 vs. 9.0 months; LA: 10.0 vs. 7.0 months; FA: 5.0 vs. 3.0 months). Multivariate analysis showed that prognostic factors for survival differed according to clinical stages. In the RE group, unfavorable prognostic factors were high CA 19-9, poor histologic differentiation, large tumor size, and regional lymph node involvement. In the FA group, however, poor outcomes were associated with old age, poor performance status, and hypoalbuminemia.
Conclusions: More active treatment of pancreatic cancer, even in advanced stage, can make a significant difference in terms of patient`s survival. The prognosis of resectable pancreatic cancer is dependent on tumor-related factors, while the prognosis of patients with far advanced pancreatic cancer is dependent on patient-related factors. (Korean J Gastroenterol 2008;51:181-189)
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KEYWORD
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Pancreatic cancer, Prognostic factors, Survival
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