Farewell to bacteremia caused by endoscopic injection--effectiveness of a new injection catheter with a covered tip

Gastrointestinal Endoscopy
Y UnoY Ohtomo

Abstract

Endoscopic injection has recently been reported as effective for several treatments. Because the common channel (suction and biopsy) is usually contaminated with aspirated gastrointestinal juice containing bacteria, often the tip of the injector needle is also. We report a new catheter needle with a covered tip designed to prevent bacteremia from endoscopic injection. The new covered needle catheter (Clisco needle) has a 23-gauge retractable needle with a 3 mm extrusion in one lumen. Its distal tip is covered with rubber, blocking infiltration of contaminated gut juice. Ten of these catheters and 10 other disposable needles were inserted through the colonoscope's biopsy channel for 10 patients. Needle tips were cut off after extrusion, and bacteria cultured were counted by standard plate count method. All cultures from ordinary needles grew Escherichia coli, whereas only 3 new needles grew E. coli. Average counts of bacteria cultured from these 3 catheters and 10 disposable needles were 1-250 and 90-6.1 x 10(6), respectively. The difference was highly significant (p < 0.0001). This new covered needle catheter reduces contaminating bacteria in patients who require endoscopic injection and may prevent bacteremia without antibioti...Continue Reading

References

Jan 1, 1991·Gastrointestinal Endoscopy·S I ParkR E Weesner
Mar 11, 1996·Archives of Internal Medicine·F SchlaefferY Niv
Nov 5, 1997·Gastrointestinal Endoscopy·T Uno, A Munakata

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Citations

Apr 25, 2020·Frontiers in Cellular and Infection Microbiology·Qiang TangHailong Cao
Aug 21, 2021·Advanced Drug Delivery Reviews·G Cummins

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