Kovalenko YA, Zharikov YO, Konchina NA, Gurmikov BN, Marinova LA, Zhao AV. Perihilar cholangiocarcinoma: A different concept for radical resection.
Surg Oncol 2020;
33:270-275. [PMID:
32561092 DOI:
10.1016/j.suronc.2020.02.013]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/09/2019] [Accepted: 02/14/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND
Long-term outcomes depend heavily on the possibility of performing radical resection.
PURPOSE
To evaluate long-term results in perihilar cholangiocarcinoma (PHC) patients from the perspective of a new understanding of radical resection.
METHODS
Consecutive PHC patients who underwent surgical resection at A.V. Vishnevsky Center of Surgery from 2011 to 2018 were retrospectively reviewed. Fifty eight (87.9%) patients underwent hemihepatectomy (14 extended hemihepatectomies), while 2 (3%) underwent extrahepatic bile duct resection only, 6 (9.1%) underwent S4b, and 5 underwent en bloc resection of the extrahepatic bile duct. The influence of the bile duct wedge R status, nodal status, microvascular invasion, microlymphatic invasion, perineural invasion, liver invasion, and surrounding adipose tissue invasion on survival was tested by Cox's models. Survival rates depending on pathological parameter numbers were compared by log-rank tests.
RESULTS
Wedge resection, nodal status, microvascular invasion, microlymphatic invasion, perineural invasion, liver invasion, and surrounding adipose tissue invasion served as extended criteria for curability (R+, 1 to 7 parameters). For R0 resection status and R1 resection status (R+1, R+2), 7 and 5 parameters were negative, respectively. For R1+ resection status (R+3, R+4, R+5, R+6, R+7), 3 to 7 parameters were positive. Patients who underwent R0 and R1 resections had 5-year survival rates of 100%; the 1- 2- 3-year survival rates were 63%, 49%, 33% for patients who underwent R1+ resections, respectively. The expanded criteria for determining radical resection levels correlated with long-term outcomes (р = 0.0001).
CONCLUSION
The new concept for radical resection can accurately reflect surgical treatment results and contribute to selecting appropriate adjuvant therapies in PHC patients.
TRIAL REGISTRATION
The study was carried out in accordance with the framework of the "Multimodal treatment of primary and secondary malignant tumors of the liver and pancreas" (state registration № 315030310062).
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