Using a double-channel gastroscope reduces procedural time in performing gastric endoscopic submucosal dissection

Area of Science:

• Gastroenterology
• Endoscopic Surgery
• Medical Device Technology

Background:

• Endoscopic submucosal dissection (ESD) is crucial for gastric lesion resection.
• Larger lesions increase procedural time and potential complications in ESD.
• Optimizing instruments is key to improving ESD safety and efficiency.

Purpose of the Study:

• To evaluate the efficacy of a double-channel gastroscope in reducing procedural time for gastric antrum ESD.
• To compare the safety and effectiveness of double-channel versus standard gastroscope in ESD procedures.

Main Methods:

• Retrospective cohort study of 46 patients with gastric antrum lesions (2-4cm diameter).
• Procedures performed using either a standard gastroscope (OS group, n=24) or a double-channel gastroscope (DC group, n=22).
• Endoscopic ultrasound (EUS) used pre-procedure to assess vascularity and lesion location.

Main Results:

• Mean procedural time was significantly lower in the double-channel gastroscope group (20.5 min) versus the standard group (49.1 min) (p=0.04).
• No significant differences observed in submucosal injection frequency, specimen size, en bloc resection rate, or perforation rate.
• No recurrence noted during the follow-up period for any patient.

Conclusions:

• Double-channel gastroscope utilization in gastric antrum ESD is associated with reduced procedural time.
• This approach offers a potentially faster ESD procedure without compromising safety or efficacy.
• Further investigation into double-channel gastroscope benefits for ESD is warranted.