Shreyash Pradhan, DO1, David Hoffman, MSPH, MBA2, Christina Cool, MPH3, Helmuth Billy, MD4 1Community Memorial Healthcare, Oxnard, CA; 2Ambu USA, Columbia, MD; 3Ambu USA, New York, NY; 4Ventura Advanced Surgical Associates, Ventura, CA
Introduction: Innovation in new therapeutic gastroscopes (TGs) has been relatively dormant after the discontinuation of the large-channel gastroscope (GIF-XTQ160) in the United States (US). This left a need for scopes that can safely and efficiently navigate and suction fluids and blood from the upper gastrointestinal tract. With a new single-use therapeutic gastroscope (SUTG) with a 4.2mm working channel (WC), this study sought to compare the potential navigation abilities of the pre-market SUTGs versus reusable therapeutic gastroscopes (RUTG).
Methods: The articulation of 2 RUTGs (3.7mm WC) with varying service histories were compared to 2 SUTGs (4.2mm WC) with and without the presence of tools (injection needle, biopsy forceps, and 10-Fr bipolar probe) in the WC. Each TG was clamped to a board and flexed forward and backwards where the maximum sustained angle was measured.
Results: The results indicate that on average, SUTGs have superior articulation compared to RUTGs for all tool states. SUTGs had increased retroflexion by 28.9% (168.5 vs. 237.0) without the presence of tools and over a 30% increase with tools (30.1% with injection needle, 28.7% with biopsy forceps, 35.0% with 10-Fr bipolar probe). SUTGs also had substantial improvement in forward flexion, with a 46.6% (78.5 vs 147.0) increase without tools and similar increase with the presence of tools (46.4% with injection needle, 47.8% with biopsy forceps, and 47.0% with 10-Fr bipolar probe).
Discussion: With a new SUTG, it is important to understand performance differences. Overall, RUTGs have reduced articulation (backwards and forwards) from the manufacturer specifications which list the scopes retroflexion at 210 degrees (we found a max of 168.5) and forward at 90 degrees (we found a max of 78.5), likely due to daily deterioration during use and reprocessing while SUTGs have superior articulation to better access and treat critical patients.
Note: The table for this abstract can be viewed in the ePoster Gallery section of the ACG 2024 ePoster Site or in The American Journal of Gastroenterology's abstract supplement issue, both of which will be available starting October 27, 2024.
Disclosures:
Shreyash Pradhan indicated no relevant financial relationships.
David Hoffman: Ambu USA – Employee.
Christina Cool: Ambu – Employee.
Helmuth Billy: Ambu USA – Consultant.
Shreyash Pradhan, DO1, David Hoffman, MSPH, MBA2, Christina Cool, MPH3, Helmuth Billy, MD4. P4119 - Articulation of Single-Use and Reusable Therapeutic Gastroscopes, ACG 2024 Annual Scientific Meeting Abstracts. Philadelphia, PA: American College of Gastroenterology.
