4.7 Article

Is Hepatic Resection for Large or Multifocal Intrahepatic Cholangiocarcinoma Justified? Results from a Multi-Institutional Collaboration

Journal

ANNALS OF SURGICAL ONCOLOGY
Volume 22, Issue 7, Pages 2218-2225

Publisher

SPRINGER
DOI: 10.1245/s10434-014-4223-3

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Funding

  1. NCI NIH HHS [P30 CA006973] Funding Source: Medline

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The role of surgical resection for patients with large or multifocal intrahepatic cholangiocarcinoma (ICC) remains unclear. This study evaluated the long-term outcome of patients who underwent hepatic resection for large (a parts per thousand yen7 cm) or multifocal (a parts per thousand yen2) ICC. Between 1990 and 2013, 557 patients who underwent liver resection for ICC were identified from a multi-institutional database. Clinicopathologic characteristics, operative details, and long-term survival data were evaluated. Of the 557 patients, 215 (38.6 %) had a small, solitary ICC (group A) and 342 (61.4 %) had a large or multifocal ICC (group B). The patients in group B underwent an extended hepatectomy more frequently (16.9 vs. 30.4 %; P < 0.001). At the final pathology exam, the patients in group B were more likely to show evidence of vascular invasion (22.5 vs. 38.5 %), direct invasion of contiguous organs (6.5 vs. 12.9 %), and nodal metastasis (13.3 vs. 21.0 %) (all P < 0.05). Interestingly, the incidences of postoperative complications (39.3 vs. 46.8 %) and hospital mortality (1.1 vs. 3.7 %) were similar between the two groups (both P > 0.05). The group A patients had better rates for 5-year overall survival (OS) (30.5 vs. 18.7 %; P < 0.05) and disease-free survival (DFS) (22.6 vs. 8.2 %; P < 0.05) than the group B patients. For the patients in group B, the factors associated with a worse OS included more than three tumor nodules [hazard ratio (HR), 1.56], nodal metastasis (HR, 1.47), and poor differentiation (HR, 1.48). Liver resection can be performed safely for patients with large or multifocal ICC. The long-term outcome for these patients can be stratified on the basis of a prognostic score that includes tumor number, nodal metastasis, and poor differentiation.

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