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Updated: Jul 30, 2025

ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection
Published on: February 10, 2017
First clinical experience with esophageal ESD using a novel adjustable traction device
Kurato Miyazaki1,2, Motohiko Kato2, Motoki Sasaki2
1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.
The new ENDOTORNADO device significantly speeds up esophageal endoscopic submucosal dissection (ESD) by enabling adjustable traction. This innovative tool reduces procedure time, making it a potentially valuable option for esophageal ESD.
Area of Science:
- Gastroenterology
- Endoscopy
- Surgical Innovation
Background:
- Esophageal endoscopic submucosal dissection (ESD) benefits from traction methods, but existing techniques like clip-thread have limited directional control.
- Developing new devices for improved traction is crucial for enhancing esophageal ESD procedures.
Purpose of the Study:
- To investigate the clinical feasibility and usefulness of the novel over-tube type traction device, ENDOTORNADO, in esophageal ESD.
- To compare the outcomes of esophageal ESD using ENDOTORNADO (tESD) versus conventional ESD (cESD).
Main Methods:
- A single-center, retrospective study comparing six cases of tESD with 23 cases of cESD performed by the same operator.
- Evaluation of clinical treatment outcomes, including procedure speed and dissection time.
Main Results:
- All procedures achieved en bloc resection without intraoperative perforation.
- The tESD group demonstrated a significant increase in total procedure speed (30 vs. 23 mm²/min, P=0.046).
- Submucosal dissection time was significantly reduced in the tESD group (11 vs. 42 min, P=0.004).
Conclusions:
- The ENDOTORNADO device offers adjustable, multi-directional traction, proving clinically feasible for esophageal ESD.
- This device represents a potential advancement and a viable option for improving esophageal ESD procedures.
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