Abstract
Background
In laparoscopic proximal gastrectomy, the hepatic left lateral segment often obstructs the operative field of view, especially around the esophageal hiatus. Therefore, a safe retraction method is needed. The present study aimed to determine the effectiveness of inverting the hepatic left lateral segment in laparoscopic proximal gastrectomy.
Methods
This was a retrospective review of 81 consecutive patients who underwent laparoscopic proximal gastrectomy. Patients were divided into two groups, i.e., the Nathanson liver retractor group (n = 41) and hepatic left lateral segment inverting group (n = 40). The unedited video recordings of the procedures and the patients’ medical records were reviewed and compared.
Results
The hepatic left lateral segment inverting method provided a more satisfactory view of the operative fields and a wider working space around the esophageal hiatus than the Nathanson liver retractor. No intraoperative hepatic congestion and significantly improved postoperative liver enzyme elevations were observed with hepatic left lateral segment inverting method compared with the Nathanson liver retractor method.
Conclusions
In laparoscopic proximal gastrectomy, the hepatic left lateral segment inverting method appears to provide improvements in both the operative field of view and liver protection compared with the Nathanson liver retractor method.
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Acknowledgments
The authors are indebted to the Maruzen Co., Ltd. (Tokyo, Japan) for their review of the present manuscript as native English speakers.
Funding
This work was not supported by any grants or funding. Ichiro Uyama has received lecture fees from Intuitive Surgical, Inc. Koichi Suda and Kenji Kikuchi have been funded by Medicaroid, Inc. in relation to Collaborative Laboratory for Research and Development in Advanced Surgical Technology, Fujita Health University. Koichi Suda has also received advisory fees from Medicaroid, Inc. outside of the submitted work.
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All the authors have fully met the ICMJE authorship criteria as follows: (1) Study design: Kenichi Nakamura, Koichi Suda; Data collection: Kenichi Nakamura; Statistical analysis and interpretation of results: Kenichi Nakamura, Koichi Suda, Susumu Shibasaki, Masaya Nakauchi, Kenji Kikuchi, Kazuki Inaba, Ichiro Uyama; (2) Drafting of the manuscript: Kenichi Nakamura, Koichi Suda; Critical revision of the manuscript for important intellectual content: Koichi Suda, Susumu Shibasaki, Masaya Nakauchi, Kenji Kikuchi, Kazuki Inaba, Ichiro Uyama. All authors read and approved the final manuscript. All authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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Kenichi Nakamura, Koichi Suda, Susumu Shibasaki, Masaya Nakauchi, Kenji Kikuchi, and Kazuki Inaba have no commercial association with or financial involvement that might pose a conflict of interest in connection with the submitted article.
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All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions. Informed consent or a substitute for it was obtained from all patients before being included in the study.
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Nakamura, K., Suda, K., Shibasaki, S. et al. The Hepatic Left Lateral Segment Inverting Method Offering a Wider Operative Field of View During Laparoscopic Proximal Gastrectomy. J Gastrointest Surg 24, 2395–2403 (2020). https://doi.org/10.1007/s11605-020-04655-x
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DOI: https://doi.org/10.1007/s11605-020-04655-x