ASGE/JGES Advanced ESD (Live and Virtual) | July 16-17 2023-7-16-23 Lab Hands-On Virtual Demonstration Part 3

Video Transcription

Video Summary

In this video, Naoki Sayahagi from Keio University demonstrates the use of DualKnifeJ for endoscopic submucosal dissection (ESD). He is assisted by Dr. Kato and receives comments from Prof. Toyonaga during the procedure. Sayahagi first injects a viscous agent into the submucosal layer using a specialized injection needle. He then conducts a mucosal incision using the DualKnifeJ, making sure to keep the ceramic tip on the surface of the tissue. He emphasizes the importance of checking the cleanness of the knife tip and controls the direction of the incision. Sayahagi then performs submucosal dissection using coagulation current, tracing the inner edge of the incised area. He demonstrates the use of clip and line traction for resection and retrieval of the specimen. In another portion of the video, Sayahagi demonstrates the water pressure method for the removal of a difficult region located at the gravity side. He injects normal saline into the submucosal layer and performs a circumferential mucosal incision. He uses water pressure to easily open the submucosal space and completes the dissection. He explains that the water pressure method can be used in combination with injection or as a standalone technique. Overall, Sayahagi provides detailed explanations and demonstrations of techniques used in ESD procedures, offering insights and tips for a successful outcome.

Asset Subtitle

New Devices
Yutaka Saito, MD, PhD, FASGE
Takashi Toyonaga, MD, FASGE
Naohisa Yahagi, MD, PhD

Keywords

DualKnifeJ

endoscopic submucosal dissection

ESD

viscous agent

mucosal incision

coagulation current

clip and line traction

water pressure method