Long-term outcome of distal cholangiocarcinoma after pancreaticoduodenectomy followed by adjuvant chemoradiotherapy: A 15-year experience in a single institution

Byoung Hyuck Kim, Kyubo Kim, Eui Kyu Chie, Jeanny Kwon, Jin Young Jang, Sun Whe Kim, Do Youn Oh, Yung Jue Bang

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Purpose This study was conducted to evaluate the long-term outcome in patients undergoing pancreaticoduodenectomy (PD) followed by adjuvant chemoradiotherapy for distal cholangiocarcinoma (DCC) in a high-volume center and to identify the prognostic impact of clinicopathologic factors. Materials and Methods A total of 132 consecutive patients who met the inclusion criteria were retrieved from the institutional database from January 1995 to September 2009. All patients received adjuvant treatments at a median of 45 days after the surgery. Median follow-up duration was 57 months (range, 6 to 225 months) for all patients and 105 months for survivors (range, 13 to 225 months). Results The 5-year locoregional recurrence-free survival (LRRFS), distant metastasis-free survival (DMFS), disease-free survival (DFS), and overall survival (OS) rates were 70.7%, 55.7%, 49.4%, and 48.1%, respectively. Univariate analysis revealed poorly differentiated (P/D) tumors and lymph node (LN) metastasis were significantly associated with DMFS and OS. Additionally, preoperative carbohydrate antigen 19-9 level was significantly correlated with DFS, LRRFS, and DMFS. Upon multivariate analysis for OS, P/D tumors (p=0.015) and LN metastasis (p=0.003) were significant prognosticators that predicted inferior OS. Grade 3 or higher late gastrointestinal toxicity occurred in only one patient (0.8%). Conclusion Adjuvant chemoradiotherapy after PD for DCC is an effective and tolerable strategy without significant side effects. During long-term follow-up, we found that prognosis of DCC was mainly influenced by histologic differentiation and LN metastasis. For patients with these risk factors, further research should focus on improving adjuvant strategies as well as other treatment approaches.

Original languageEnglish
Pages (from-to)473-483
Number of pages11
JournalCancer Research and Treatment
Volume49
Issue number2
DOIs
StatePublished - 1 Apr 2017

Keywords

  • Adjuvant chemoradiotherapy
  • Distal cholangiocarcinoma
  • Pancreaticoduodenectomy

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