Celiac.com 08/24/2021 - We've written about high rates of tissue contamination in reprocessed duodenoscopes, and the FDA has warned about the deadly potential for infection in such cases, and encouraged the transition to disposable duodenoscopes.
We also know about similar problems with endoscopes, but the latest news shows that the problem with contaminated biopsy endoscopes is much more severe than previously understood.
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The most recent study shows that nearly two in three endoscopes used for colonoscopy and esophagogastroduodenoscopy (EGD) procedures show a "startlingly high" rate of contamination from retained biopsy samples in the endoscope accessory channel or cap. This is a huge problem with potentially serious consequences for patients undergoing biopsy, as contaminated endoscopes can cause infection in many cases.
In the study, conducted by Gregory Toy, MD, and colleagues at University of Utah Health, in Salt Lake City. investigators found 64% of 105 total endoscopies featured retained matter from biopsy samples, including more than three out of four EGDs and 50% of colonoscopies.
When University of Utah Health polled its own endoscopists, they estimated the rate of contaminated scopes to be 10% to 15% of all scopes, far below the actual number of 64%, Gregory Toy, MD, told reporters. "The take-home message would be that retained biopsies are much more common than most endoscopists would think," adds Dr. Toy.
Also worrying in the data was the high rate of retained biopsies found in EGDs compared to colonoscopies, said Dr. Toy. Increasing awareness about the high rate of retained biopsy samples in endoscopes, Dr. Toy suggests, may help clinicians to "change behavior to make this happen less often." Dr. Toy presented the findings during the Digestive Disease Week (DDW) 2021 virtual meeting.
"Very Surprising" Results
Calling the results "very surprising," session moderator Serge Sorser, MD, told reporters that "The study is very important as it points out a significant rate of tissue retention in the biopsy channel at the conclusion of endoscopic procedures."
From the 2021 Digestive Disease Week (DDW) virtual meeting. [PAYWALL]
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