Left trisectionectomy for perihilar cholangiocarcinoma, although technically demanding, can be performed with similar mortality rates as left hepatectomy. From an oncologic viewpoint, this operation can increase the number of negative proximal ductal margins, leading to a high proportion of R0 resection, and, in turn, to improved survival rates of patients with advanced left-sided perihilar cholangiocarcinoma.
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Natsume et al. (2012) studied this question.
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