Laparoscopic isolated liver segmentectomy 8 for malignant tumors: techniques and comparison of surgical results with the open approach using a propensity score–matched study

Yutaro Kato, Atsushi Sugioka, Masayuki Kojima, Gozo Kiguchi, Yoshinao Tanahashi, Yuichiro Uchida, Junichi Yoshikawa, Akira Yasuda, Sanae Nakajima, Takeshi Takahara, Ichiro Uyama

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: Anatomic isolated liver segmentectomy 8 (ILSeg8) for malignancies remains technically challenging. The feasibility, safety, and oncologic validity of laparoscopic ILSeg8 are undefined, and thus were evaluated in comparison with the open approach. Methods: This study enrolled 35 open and 29 laparoscopic ILSeg8 cases of hepatocellular carcinoma (n = 47), metastatic liver tumors (n = 16), and intrahepatic cholangiocarcinoma (n = 1) at our institution. The surgical techniques were based on the pre-hepatectomy extrahepatic Glissonian pedicle control, followed by cranial-to-caudal parenchymal dissection from the hepatic vein root side. The short- and long-term outcomes after ILSeg8 were retrospectively evaluated and compared between the open and laparoscopic approaches using 1:1 propensity score matching (PSM). Results: Both before and after PSM, the laparoscopic ILSeg8 group had significantly less blood loss, lower postoperative serum bilirubin level, and a shorter postoperative hospital stay than the open group. The overall survival rates were comparable between the laparoscopic and open groups before (P = 0.017) and after (P = 0.043) PSM, with the similar recurrence-free survival rates between the groups. In a multivariable analysis of the cohort before PSM (n = 64), the laparoscopic approach was identified to be an independent factor for favorable overall survival (hazard ratio = 0.20, P = 0.039). Conclusion: Laparoscopic ILSeg8 using the extrahepatic Glissonian approach and hepatic vein root at first parenchymal dissection was feasible, safe, and oncologically acceptable. In ILSeg8 for malignancy, the laparoscopic approach potentially confers short-term advantages over the open approach with comparable long-term outcomes in select patients.

Original languageEnglish
Pages (from-to)2881-2892
Number of pages12
JournalLangenbeck's Archives of Surgery
Volume407
Issue number7
DOIs
Publication statusPublished - 11-2022

All Science Journal Classification (ASJC) codes

  • Surgery

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