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Updated: Jan 23, 2026

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Published on: August 26, 2014

追加吸引チャンネルによる緊急内視鏡検査効率の向上：invitro評価

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

要旨

Background And Study Aims:

Emergency endoscopic interventions for upper gastrointestinal hemorrhage are frequently hampered by presence of blood clots and food debris. This study aimed to assess whether integration of an additional suction channel (ASC) onto a standard gastroscope enhances efficiency of aspirating clots and viscous fluids.

Patients And Methods:

A 5.3-mm suction catheter was used as an ASC mounted on a 2.8-mm standard gastroscope. Suction efficacy was evaluated using gastroscopes with working channel diameters of 2.8 mm, 3.7 mm, and 6 mm in vitro. Defined volumes of water, fruit yogurt, and coagulated blood were aspirated, and time required for complete evacuation was measured. Each setup was tested with and without the BioVac system.

Results:

The ASC significantly enhanced suction performance across all test media. Notably, the 2.8-mm gastroscope with ASC outperformed all other configurations in aspirating water and yogurt. For clotted blood, the ASC significantly improved evacuation times compared with all other setups besides 6-mm + BioVac.

Conclusions:

A standard gastroscope equipped with an ASC significantly enhances suction performance in an in vitro model, outperforming gastroscopes with larger working channels. These findings warrant further validation in an ex vivo model to determine their clinical applicability.

キーワード:

上部消化管内視鏡検査非静脈瘤性出血性能と合併症門脈圧亢進症と静脈瘤性出血品質とロジスティクス

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