Observational Study
Copyright ©The Author(s) 2022. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jul 16, 2022; 10(20): 6855-6864
Published online Jul 16, 2022. doi: 10.12998/wjcc.v10.i20.6855
Influence of the water jet system vs cavitron ultrasonic surgical aspirator for liver resection on the remnant liver
Takehiko Hanaki, Ayumi Tsuda, Teppei Sunaguchi, Keisuke Goto, Masaki Morimoto, Yuki Murakami, Kyoichi Kihara, Tomoyuki Matsunaga, Manabu Yamamoto, Naruo Tokuyasu, Teruhisa Sakamoto, Toshimichi Hasegawa, Yoshiyuki Fujiwara
Takehiko Hanaki, Ayumi Tsuda, Teppei Sunaguchi, Keisuke Goto, Masaki Morimoto, Yuki Murakami, Kyoichi Kihara, Tomoyuki Matsunaga, Manabu Yamamoto, Naruo Tokuyasu, Teruhisa Sakamoto, Toshimichi Hasegawa, Yoshiyuki Fujiwara, Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, Tottori University Faculty of Medicine, Yonago 683-8504, Tottori, Japan
Author contributions: Hanaki T designed the study and drafted the initial manuscript; Tsuda A performed the all statistical analysis; Sunaguchi T, Goto K, Morimoto M, Murakami Y, Kihara K, Matsunaga T, Yamamoto M and Tokuyasu N participated in the acquisition and analysis of data; Hanaki T and Sakamoto T performed the surgery; Hasegawa T and Fujiwara Y revised the article critically for important intellectual content.
Institutional review board statement: The study was reviewed and approved by the institutional review board of Tottori University, Faculty of Medicine (approval No. 21A081).
Informed consent statement: The need for patients’ informed written consent was waived due to the retrospective nature of the study.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Data sharing statement: No additional data are available.
STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-checklist of items.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Takehiko Hanaki, MD, PhD, Assistant Professor, Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, Tottori University Faculty of Medicine, 36-1, Nishi-Cho, Yonago 683-8504, Tottori, Japan. hanaki-ttr@umin.ac.jp
Received: November 8, 2021
Peer-review started: November 8, 2021
First decision: April 19, 2022
Revised: April 23, 2022
Accepted: May 27, 2022
Article in press: May 27, 2022
Published online: July 16, 2022
Core Tip

Core Tip: We evaluated the denaturation degree of the liver dissection plane on computed tomography (CT) scan and compared the cavitron ultrasonic surgical aspirator and water jet (WJ) method. The perioperative outcomes were almost similar. However, the WJ method had a lower loss of contrast effect on the liver dissection plane. Moreover, we found a positive correlation between the denaturation degree on CT scans and the postoperative peak of hepatic enzymes. The reduced contrast effect on CT scan reflects thermal degeneration during hepatectomy, and the WJ method may be more advantageous in preserving the remnant functioning liver volume during hepatectomy.