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Enhancing emergency endoscopy efficiency with an additional suction channel: In vitro assessment.

André Sasse1, Thomas Roland Heiduk1, Marvin Scheunemann2

  • 1Clinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany.

Endoscopy International Open
|January 22, 2026
PubMed
Summary
This summary is machine-generated.

An additional suction channel (ASC) significantly improves gastroscope suction for clots and viscous fluids. This innovation enhances endoscopic intervention efficiency, particularly in emergency upper gastrointestinal hemorrhage cases.

Keywords:
Endoscopy Upper GI TractNon-variceal bleedingPerformance and complicationsPortal hypertension and variceal bleedingQuality and logistical aspects

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Area of Science:

  • Gastroenterology
  • Medical Devices
  • Endoscopic Technology

Background:

  • Upper gastrointestinal hemorrhage management is challenged by blood clots and food debris during endoscopic procedures.
  • Effective aspiration of clots and viscous fluids is crucial for successful emergency endoscopic interventions.

Purpose of the Study:

  • To evaluate the efficacy of an additional suction channel (ASC) integrated onto a standard gastroscope.
  • To determine if the ASC enhances the aspiration of clots and viscous fluids compared to standard gastroscopes.

Main Methods:

  • An additional suction channel (ASC), a 5.3-mm suction catheter, was mounted on a 2.8-mm standard gastroscope.
  • Suction efficacy was tested in vitro using gastroscopes with 2.8 mm, 3.7 mm, and 6 mm working channel diameters.
  • Aspiration of water, fruit yogurt, and coagulated blood was measured, with and without the BioVac system.

Main Results:

  • The ASC significantly improved suction performance across all tested media.
  • The 2.8-mm gastroscope with ASC demonstrated superior aspiration of water and yogurt compared to other configurations.
  • For clotted blood, the ASC significantly reduced evacuation times, outperforming all setups except the 6-mm + BioVac system.

Conclusions:

  • A standard gastroscope equipped with an ASC significantly enhances suction performance in an in vitro model.
  • The ASC-equipped gastroscope outperformed larger-channel gastroscopes in certain aspiration tasks.
  • Further ex vivo validation is recommended to assess the clinical applicability of this enhanced gastroscope system.