Abstract

PurposeMajor liver resection and radical lymph node dissection has been accepted as a definite treatment of choice for hilar cholangiocarcinoma (HC). However, the perioperative and survival outcomes of right hemihepatectomy (RH) and left hemihepatectomy (LH) still remain controversial. Thus, this study aimed to compare the surgical and oncological outcomes of RH and LH in HC patients.MethodsFrom January 2000 to January 2018, a total of 326 patients underwent surgical resection for HC at Yonsei University College of Medicine in Seoul, Korea. Among the 326 patients, we excluded 130 patients and selected 196 patients, who underwent hemihepatectomy with caudate lobectomy. Among these 196 patients, 114 patients underwent RH, and 82 patients underwent LH. We compared the clinicopathological features as well as the surgical and oncologic outcomes of the RH and LH groups.ResultsThere were no significant differences in disease-free survival (P = 0.473) or overall survival (P = 0.946) in the RH and LH groups. The LH group had fewer complications compared with the RH group, including postoperative ascites (RH: 15 [13.2%] vs. LH: 3 [3.7%], P = 0.023); however, the LH group had more bile leakage complications (RH: 5 [4.4%] vs. LH: 12 [14.6%], P = 0.012). The average time lag from portal vein embolization to operation was 25.80 ± 12.06 days (n = 45). There was no difference in postoperative liver failure (P = 0.402), although there were significantly more frequent ascites after RH (P = 0.023).ConclusionLH might be a good alternative option for the surgical treatment of HC given appropriate tumor location and biliary anatomy indications.

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