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Survival analysis of extrahepatic cholangiocarcinoma based on surveillance, epidemiology, and end results database

  • Hassam Ali (Department of Internal Medicine, East Carolina University) ;
  • Joshua Zweigle (Department of Internal Medicine, East Carolina University) ;
  • Pratik Patel (Department of Gastroenterology, Mather Hospital/Hofstra University School of Medicine) ;
  • Brandon Tedder (Department of Internal Medicine, East Carolina University) ;
  • Rafeh Khan (Department of Internal Medicine, University of Health Sciences) ;
  • Saurabh Agrawal (Department of Hepatology, Tampa General Hospital)
  • Received : 2022.09.20
  • Accepted : 2022.11.03
  • Published : 2023.05.31

Abstract

Backgrounds/Aims: Cholangiocarcinoma (CCA) can be classified as intrahepatic CCA or extrahepatic CCA (eCCA). We intended to analyze and reports the survival outcomes for eCCA. Methods: Surveillance, epidemiology, and end results (SEER) registry, site recode C24.0, was used to select cases of eCCA from 2000 to 2018. Patients with incomplete data or ages <18 years were excluded. Results: Male (52.69%) and White race (77.99%) predominated. Compared with 2000-2006, survival increased in 2013 (adjusted hazard ratio [HRadj]: 0.68, 95% confidence interval [CI] 0.58-0.70; p < 0.01). Surgery with chemoradiotherapy (HRadj: 0.69, 95% CI 0.60-0.7; p < 0.01) and surgery with chemotherapy (HRadj: 0.72, 95% CI 0.62-0.83; p < 0.01) improved survival over surgery alone. Compared with surgery without lymph node (LN) removal, surgery of four or more regional LN reduced the risk of death by 58% (HRadj: 0.42, 95% CI 0.36-0.51; p < 0.01). Compared with patients without surgery, patients who underwent bile duct excision (HRadj: 0.82, 95% CI 0.72-0.94; p < 0.01), simple or extended lobectomy (HRadj: 0.85, 95% CI 0.75-0.95; p = 0.009), and hepatectomy (HRadj: 0.80, 95% CI 0.72-0.88; p < 0.01) significantly improved survival. Patients with distal CCA had a 17% higher survival than perihilar CCA (HRadj: 0.83, 95% CI 0.74-0.92; p < 0.01) and LN dissection was equally beneficial for both subgroups (p < 0.01). Conclusions: Surgery with chemoradiotherapy has a proven increase in the 5-year survival of the eCCA. LN resection, bile duct excision, lobectomy, and hepatectomy have better outcomes.

Keywords

References

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