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. 2022 Jan;29(1):6-15.
doi: 10.1002/jhbp.1091. Epub 2021 Dec 20.

The Tokyo 2020 terminology of liver anatomy and resections: Updates of the Brisbane 2000 system

Go Wakabayashi  1 , Daniel Cherqui  2 , David A Geller  3 , Mohammed Abu Hilal  4 , Giammauro Berardi  5 , Ruben Ciria  6 , Yuta Abe  7 , Takeshi Aoki  8 , Horacio J Asbun  9 , Albert C Y Chan  10 , Rawisak Chanwat  11 , Kuo-Hsin Chen  12 , Yajin Chen  13 , Tan To Cheung  14 , David Fuks  15 , Naoto Gotohda  16 , Ho-Seong Han  17 , Kiyoshi Hasegawa  18 , Etsuro Hatano  19 , Goro Honda  20 , Osamu Itano  21 , Yukio Iwashita  22 , Hironori Kaneko  23 , Yutaro Kato  24 , Ji Hoon Kim  25 , Rong Liu  26 , Santiago López-Ben  27 , Mamoru Morimoto  28 , Kazuteru Monden  29 , Fernando Rotellar  30 , Yoshihiro Sakamoto  31 , Atsushi Sugioka  24 , Tomoharu Yoshiizumi  32 , Keiichi Akahoshi  33 , Felipe Alconchel  34 , Shunichi Ariizumi  20 , Andrea Benedetti Cacciaguerra  4 , Manuel Durán  6 , Alain Garcia Vazquez  35 , Nicolas Golse  2 , Yoshihiro Miyasaka  36 , Yasuhisa Mori  37 , Satoshi Ogiso  19 , Chikara Shirata  18 , Federico Tomassini  38 , Takeshi Urade  39 , Taiga Wakabayashi  7 , Hitoe Nishino  40   41 , Taizo Hibi  42 , Norihiro Kokudo  43 , Masayuki Ohtsuka  41 , Daisuke Ban  44 , Yuichi Nagakawa  40 , Takao Ohtsuka  45 , Minoru Tanabe  33 , Masafumi Nakamura  37 , Akihiko Tsuchida  40 , Masakazu Yamamoto  20
Affiliations

The Tokyo 2020 terminology of liver anatomy and resections: Updates of the Brisbane 2000 system

Go Wakabayashi et al. J Hepatobiliary Pancreat Sci. 2022 Jan.

Abstract

Background: The Brisbane 2000 Terminology for Liver Anatomy and Resections, based on Couinaud's segments, did not address how to identify segmental borders and anatomic territories of less than one segment. Smaller anatomic resections including segmentectomies and subsegmentectomies, have not been well defined. The advent of minimally invasive liver resection has enhanced the possibilities of more precise resection due to a magnified view and reduced bleeding, and minimally invasive anatomic liver resection (MIALR) is becoming popular gradually. Therefore, there is a need for updating the Brisbane 2000 system, including anatomic segmentectomy or less. An online "Expert Consensus Meeting: Precision Anatomy for Minimally Invasive HBP Surgery (PAM-HBP Surgery Consensus)" was hosted on February 23, 2021.

Methods: The Steering Committee invited 34 international experts from around the world. The Expert Committee (EC) selected 12 questions and two future research topics in the terminology session. The EC created seven tentative definitions and five recommendations based on the experts' opinions and the literature review performed by the Research Committee. Two Delphi Rounds finalized those definitions and recommendations.

Results: This paper presents seven definitions and five recommendations regarding anatomic segmentectomy or less. In addition, two future research topics are discussed.

Conclusions: The PAM-HBP Surgery Consensus has presented the Tokyo 2020 Terminology for Liver Anatomy and Resections. The terminology has added definitions of liver anatomy and resections that were not defined in the Brisbane 2000 system.

Keywords: Glissonean approach; anatomic liver resection; cone unit; segmentectomy; subsegmentectomy.

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References

REFERENCES

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