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Disease Recurrence Patterns and Analysis of Clinicopathological Prognostic Factors for Recurrence after Resection for Distal Bile Duct Cancer

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Surgical resection is the treatment of choice for bile duct cancers. The aim of this study was to investigate disease recurrence patterns and prognostic factors for recurrence of distal bile duct cancers after surgical resection. A retrospective study was performed on 122 patients with distal bile duct cancers who underwent R0 or R1 surgical resection at Korea University Guro Hospital from 1991 to 2010. Sites of initial disease recurrence were classified as locoregional or distant. Univariate and multivariate analyses were performed to investigate the factors affecting recurrence. Of the 122 patients, 80 patients developed recurrence. The disease-free survival rate was 63.1 per cent at one year and 36.4 per cent at three years. The patterns of recurrence at diagnosis were locoregional in 25 patients, locoregional and distant metastasis in 14 patients, and distant metastasis in 41 patients. Multivariate analyses revealed that recurrence pattern, lymph node metastasis, and differentiation are independent prognostic factors affecting disease-free survival. R status (marginal significance) and tumor differentiation were independent prognostic factors associated with locoregional recurrence. Differentiation and lymph node metastasis were independent prognostic factors associated with distant metastasis. The prognosis after recurrence was poor with a 1-year survival rate after recurrence of 26.1 per cent. Adjuvant chemo- or radiation therapy, delivered in patients mainly with R1 resection or with presence of lymph node metastasis, did not demonstrate the survival benefit. Significant factors for recurrence were tumor differentiation and lymph node metastasis. Therefore, close follow-up and adjuvant therapy will be necessary in patients with lymph node metastasis or poorly differentiated tumor.
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Document Type: Research Article

Affiliations: Department of Surgery, Korea University College of Medicine, Seoul, Korea

Publication date: March 1, 2015

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