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ISSN: 2161-0940
Anatomy & Physiology: Current Research

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Commentary on Laparoscopic-Endoscopic Cooperative Surgery for Duodenal Lesions

Masahiro Sakon1*, Yasushi Sekino1, Hitoshi Seki1, Ayako Seki2, Yasuhiro Munakata1 and Osamu Hasebe2

1Department of Surgery, Nagano Municipal Hospital, Japan

2Department of Gastroenterology, Nagano Municipal Hospital, Japan

*Corresponding Author:
Masahiro Sakon
Department of Surgery, Nagano Municipal Hospital Japan
Tel: +81-26-295-1199
E-mail: [email protected]

Received date: September 12, 2017; Accepted date: September 18, 2017; Published date: September 25, 2017

Citation: Masahiro Sakon, Yasushi Sekino, Hitoshi Seki, Ayako Seki, Yasuhiro Munakata, et al. (2017) Commentary on Laparoscopic-Endoscopic Cooperative Surgery for Duodenal Lesions. Anat Physiol 7:283. doi:10.4172/2161-0940.1000283

Copyright: © 2017 Masahiro Sakon, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

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Keywords

Duodenal tumor; Laparoscopic resection; Endoscopy

Introduction

Laparoscopic wedge resection of gastric submucosal tumors is an established method, but the tumor is usually resected to an excessive extent [1,2]. Hiki et al. first reported laparoscopic-endoscopic cooperative surgery (LECS) for gastric tumors [3]. Under the LECS approach, the tumor can be resected with minimal but adequate surgical margin. We reported LECS for duodenal lesions in 2010 [4], but other such reports limited. Although LECS enables resection of the tumor with minimal but adequate surgical margin and without postoperative deformity or stenosis, the procedure is still not fully established.

LECS Indication for Duodenal Lesions

Location

The non-ampullary area of the first or second portion of the duodenum is suitable for LECS. The endoscopic approach on the distal side of the ampulla of Vater is difficult, and the transduodenal approach or another procedure is the better therapeutic option at this location. Endoscopic maneuvers performed at the third or fourth portion of the duodenum are also quite difficult, thus also making LECS difficult.

Tumors

Adenomas or submucosal tumors are good indications for LECS. However, inversing the tumor intraabdominally raises concern about possible intraabdominal dispersion of the tumor. Extreme caution should be exercised for indications other than adenomas and submucosal tumors. LECS for duodenal carcinoma requires a procedure that prevents intraabdominal tumor dispersion. Irino et al. reported LECS for duodenal tumors that does not perforate the duodenal wall or disperse the tumor cells [5].

Tumor size

A size limit of 3 cm is considered appropriate for duodenal wall resection with LECS because hand-suturing/stitching would be practically difficult in cases in which large defects of the wall result. Additionally, closure of large defects may cause postoperative stenosis.

Discussion

Endoscopic submucosal dissection (ESD) of duodenal lesions is practically difficult and is occasionally accompanied by perforation of eroded luminal walls [6,7]. Laparoscopic wedge resection of the duodenum is indicated for quite limited cases such as small tumors or tumors with a small base. LECS, in which intraoperative endoscopy is combined with a manua l ESD technique, has enabled the performance of reliable and adequate resection of duodenal tumors. Various LECS approaches have been reported including creative methods such as LECS reported by Irino et al. [5] and NEWS [8] and CLEAN-NET [9]. These procedures do not perforate the duodenal wall and therefore avoid the dispersion of tumor cells. However, NEWS and CLEAN-NET are difficult to perform at the duodenum because of the narrow working space. Irino et al. reported a LECS procedure in which ESD was performed by endoscopy, followed by closure of the mucosal defect using seromuscular suturing via laparoscopy [5]. This procedure can improve the feasibility and safety of LECS for duodenal tumor resection.

If the tumor is located on the pancreas side, a very careful approach is necessary because reinforcement by seromuscular sutures cannot be performed on this side. In such cases, transduodenal approach with mini laparotomy should be considered [10].

The number of LECS procedures performed for duodenal tumors remains limited, and careful surgery is required. The development of LECS for duodenal carcinoma or tumors located at the third or fourth portion of the duodenum is a challenge for the future.

Conclusion

The LECS approach for duodenal tumors would be preferable for resection along a precise cut line to ensure negative margins and avoid unwanted resection. However, creative procedures will be required in the future to improve the reliability and benefits of LECS for duodenal lesions.

References

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