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The Nexpowder™* endoscopic hemostasis system is a powder that can be sprayed to an ulcer site, applying an endoscopic hemostatic agent. As a hydrophilic biocompatible adhesive material, it is composed of succinic anhydride (ε-poly-(L-lysine)) and oxidized dextran.
The Nexpowder™* system forms the adhesive gel after making contact with the water or blood by reversible crosslinking. Crosslinked gel helps prevent bleeding, loss of body fluid and contamination of the ulcer site by adhering to the bleeding site in the gastrointestinal tract and then gel degrades within 1 day to 3 days.3,4,5
Watch this Nexpowder™* case video by D. Lee, Division of Gatroenterlogy, Department of Internal Medicine.
Watch this Nexpowder™* case video by Prof. Rath, Head of the Ludwig Demling Endocscopy Center, University Hospital of Erlangen, Germany.
A prospective study assessed the feasibility of Nexpowder™* application in refractory upper gastrointestinal bleeding in 17 patients, and has shown:
In a retrospective study in Korea, monotherapy with Nexpowder™* was administered to 56 patients with active bleeding. Immediate hemostasis was achieved in 96.4% (54/56) with a rebleeding rate of 3.7% (2/54) and no adverse events.2
Authors: Jongbeom Shin et al.
Published in: BMC Gastroenterol (2021) 21:40
Conclusion: In conclusion, this single-arm study demonstrated Nexpowder™* was associated with excellent immediate hemostasis rate and safety profile as well as low rebleeding for upper gastrointestinal tumor bleeding.
Speakers:
™* Third party brands are trademarks of their respective owners. All other brands are trademarks of a Medtronic company
1. Antunes C, Copelin II EL. Upper Gastrointestinal Bleeding. [Updated 2019 Sep 30]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470300/
2. Raphaeli T, Menon R. Current treatment of lower gastrointestinal hemorrhage. Clin Colon Rectal Surg. 2012;25(4):219-227. doi:10.1055/s-0032-1329393
3. Park JS, Kim HK, Shin YW, et al. Novel hemostatic adhesive powder for nonvariceal upper gastrointestinal bleeding. Endosc Int Open. 2019 Dec; 7(12):E1763-E1767.
4. Park JS, Bang BW, Hong SJ, et al. Efficacy of a novel hemostatic adhesive powder in patients with refractory upper gastrointestinal bleeding: a pilot study. Endoscopy. 2019 May; 51(5):458-462.
5. Bang B, Lee E, Maeng J, et al. Efficacy of a novel endoscopically deliverable muco-adhesive hemostatic powder in an acute gastric bleeding porcine model. PLoS One. 2019 Jun 11; 14(6):e0216829.