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. 2025 Apr 9.
doi: 10.1007/s00595-025-03037-7. Online ahead of print.

Comparison of the surgical difficulty between segment 7 and 8 partial liver resection untilizing the laparoscopic and open approaches

Hidetoshi Gon #  1 , Akihiro Fujisawa #  1 , Shohei Komatsu  2 , Motofumi Tanaka  3 , Kenji Fukushima  1 , Takeshi Urade  1 , Toshihiko Yoshida  1 , Keisuke Arai  1 , Jun Ishida  1 , Yoshihide Nanno  1 , Daisuke Tsugawa  1 , Hiroaki Yanagimoto  1 , Hirochika Toyama  1 , Masahiro Kido  1 , Takumi Fukumoto  1
Affiliations

Comparison of the surgical difficulty between segment 7 and 8 partial liver resection untilizing the laparoscopic and open approaches

Hidetoshi Gon et al. Surg Today. .

Abstract

Purpose: We aimed to investigate the differences in surgical difficulty between laparoscopic partial liver resections of segments 7 and 8.

Methods: We analyzed 173 patients who underwent partial liver resections of segments 7 or 8 between 2010 and 2022 at two institutions. We investigated differences in the surgical outcomes of each procedure using propensity score matching. We compared these outcomes with those of open partial liver resections for segments 7 and 8 to determine whether the differences were unique to the laparoscopic approach.

Results: Thirty and 54 patients underwent laparoscopic partial liver resections of segments 7 and 8. In the matched cohort (22 in each group), the operation time was significantly longer (377 vs. 278 min, P = 0.020) and the proportion of postoperative complications significantly higher in segment 7 (27% vs. 0%, P = 0.008). Forty-one and 48 patients underwent open partial liver resections of segments 7 and 8, respectively. There were no significant differences in the surgical outcomes between the segments in the matched cohort (20 in each group).

Conclusions: Laparoscopic partial liver resections of segment 7 may be more challenging than that of segment 8. This difference in difficulty was not observed in open partial liver resections.

Keywords: Laparoscopic partial liver resection; Open partial liver resection; Segment 7; Segment 8.

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Conflict of interest statement

Declarations. Conflict of interest: Dr. Hidetoshi Gon, Akihiro Fujisawa, Shohei Komatsu, Motofumi Tanaka, Kenji Fukushima, Takeshi Urade, Toshihiko Yoshida, Keisuke Arai, Jun Ishida, Yoshihide Nanno, Daisuke Tsugawa, Hiroaki Yanagimoto, Hirochika Toyama, Masahiro Kido, and Takumi Fukumoto have no conflict of interest or financial ties to disclose.

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