Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Multicenter Study
. 2014 Oct;21(10):745-53.
doi: 10.1002/jhbp.166.

A novel difficulty scoring system for laparoscopic liver resection

Daisuke Ban  1 , Minoru Tanabe, Hiromitsu Ito, Yuichiro Otsuka, Hiroyuki Nitta, Yuta Abe, Yasushi Hasegawa, Toshio Katagiri, Chisato Takagi, Osamu Itano, Hironori Kaneko, Go Wakabayashi
Affiliations
Multicenter Study

A novel difficulty scoring system for laparoscopic liver resection

Daisuke Ban et al. J Hepatobiliary Pancreat Sci. 2014 Oct.

Abstract

Early on, laparoscopic liver resection (LLR) was limited to partial resection, but major LLR is no longer rare. A difficulty scoring system is required to guide surgeons in advancing from simple to highly technical laparoscopic resections. Subjects were 90 patients who had undergone pure LLR at three medical institutions (30 patients/institution) from January 2011 to April 2014. Surgical difficulty was assessed by the operator using an index of 1-10 with the following divisions: 1-3 low difficulty, 4-6 intermediate difficulty, and 7-10 high difficulty. Weighted kappa statistic was used to calculate the concordance between the operators' and reviewers' (expert surgeon) difficulty index. Inter-rater agreement (weighted kappa statistic) between the operators' and reviewers' assessments was 0.89 with the three-level difficulty index and 0.80 with the 10-level difficulty index. A 10-level difficulty index by linear modeling based on clinical information revealed a weighted kappa statistic of 0.72 and that scored by the extent of liver resection, tumor location, tumor size, liver function, and tumor proximity to major vessels revealed a weighted kappa statistic of 0.68. We proposed a new scoring system to predict difficulty of various LLRs preoperatively. The calculated score well reflected difficulty.

Keywords: Difficulty index; Difficulty score; Laparoscopic hepatectomy; Laparoscopic liver resection; Surgical difficulty.

PubMed Disclaimer

Comment in

  • Impact of neoadjuvant chemotherapy on the difficulty and outcomes of laparoscopic and robotic major liver resections for colorectal liver metastases: A propensity-score and coarsened exact-matched controlled study.
    Ghotbi J, Aghayan D, Fretland Å, Edwin B, Syn NL, Cipriani F, Alzoubi M, Lim C, Scatton O, Long TCD, Herman P, Coelho FF, Marino MV, Mazzaferro V, Chiow AKH, Sucandy I, Ivanecz A, Choi SH, Lee JH, Prieto M, Vivarelli M, Giuliante F, Ruzzenente A, Yong CC, Yin M, Fondevila C, Efanov M, Morise Z, Di Benedetto F, Brustia R, Dalla Valle R, Boggi U, Geller D, Belli A, Memeo R, Mejia A, Park JO, Rotellar F, Choi GH, Robles-Campos R, Wang X, Sutcliffe RP, Pratschke J, Tang CN, Chong CCN, D'Hondt M, Monden K, Lopez-Ben S, Kingham TP, Ferrero A, Ettorre GM, Levi Sandri GB, Pascual F, Cherqui D, Liang X, Mazzotta A, Wakabayashi G, Giglio M, Troisi RI, Han HS, Cheung TT, Sugioka A, Chen KH, Liu R, Soubrane O, Fuks D, Aldrighetti L, Abu Hilal M, Goh BKP; International robotic and laparoscopic liver resection study group investigators. Ghotbi J, et al. Eur J Surg Oncol. 2023 Jul;49(7):1209-1216. doi: 10.1016/j.ejso.2023.01.014. Epub 2023 Jan 20. Eur J Surg Oncol. 2023. PMID: 36774216 Free PMC article.

Publication types