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Erschienen in:

28.07.2020

Bipolar-current needle-knife with a water jet function (Jet B-knife) shortens the procedure time of endoscopic submucosal dissection for colorectal tumors

verfasst von: Katsushi Hiramatsu, Tatsushi Naito, Yu Akazawa, Yasushi Saito, Takuto Nosaka, Kazuto Takahashi, Kazuya Ofuji, Hidetaka Matsuda, Masahiro Ohtani, Mitsuru Matsuda, Akito Sakai, Yasunari Nakamoto

Erschienen in: Surgical Endoscopy | Ausgabe 7/2021

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Abstract

Background

Endoscopic submucosal dissection (ESD) is a technically difficult and time-consuming procedure for the treatment of large colorectal tumors. In Japan, the ball-tip bipolar-current needle-knife (BB-knife) has been used in ESD as a safe device that minimizes the damage to deeper tissues of colorectal neoplasms. In May 2012, a BB-knife combined with a water jet function (Jet B-knife) was newly developed.

Methods

This retrospective study was aimed at examining the effectiveness and safety of the Jet B-knife. The BB-knife was used in 276 lesions (BB-knife group), while the Jet B-knife was used in 245 lesions (Jet B-knife group). We evaluated tumor characteristics and the results of the ESD procedures, including the size of the resected tumor, histological diagnosis, time required for resection, frequency of using other electrical devices, en bloc resection rate, and incidence rate of associated complications. Then, the data obtained were compared between the two groups.

Results

The histological evaluation of the resected tumors revealed that the incidence of cancer was not significantly different between the two groups. The median time required for resection was 103 min (45–255) in the BB-knife group and 51 min (28–210) in the Jet B-knife group. The difference was statistically significant (p < 0.05). Furthermore, the median tumor diameters were 23.1 mm (18–50) and 26.2 mm (20–60) in the BB-knife and Jet B-knife groups, respectively, demonstrating a statistically significant difference (p < 0.05). Multivariate logistic regression analysis revealed that short resection time (p < 0.001) and reduced use of hemostatic devices (p < 0.01) were independent favorable features of Jet B-knife. The en bloc resection rate and the perforation rate were not statistically significant between the two groups.

Conclusions

Use of the Jet B-knife may contribute to the development of a time-saving, cost-effective, and safe procedure for ESD of colorectal tumors.

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Titel: Bipolar-current needle-knife with a water jet function (Jet B-knife) shortens the procedure time of endoscopic submucosal dissection for colorectal tumors
verfasst von: Katsushi Hiramatsu
Tatsushi Naito
Yu Akazawa
Yasushi Saito
Takuto Nosaka
Kazuto Takahashi
Kazuya Ofuji
Hidetaka Matsuda
Masahiro Ohtani
Mitsuru Matsuda
Akito Sakai
Yasunari Nakamoto
Publikationsdatum: 28.07.2020
Verlag: Springer US
Erschienen in: Surgical Endoscopy / Ausgabe 7/2021
Print ISSN: 0930-2794
Elektronische ISSN: 1432-2218
DOI: https://doi.org/10.1007/s00464-020-07832-w

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Bipolar-current needle-knife with a water jet function (Jet B-knife) shortens the procedure time of endoscopic submucosal dissection for colorectal tumors