Unclean colonoscopy instruments: 3 in 20 have 'dirt' from colons

June 7, 2013 8:30 PM

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Unclean colonoscopy instruments: 3 in 20 have 'dirt' from colons

Bits and pieces of "biological dirt" from inside people's colons are being left on three in 20 of the instruments inserted in people's rectums to examine their lower digestive tract, according to a study at five hospitals nationwide.

"Three out of 20 is an unexpectedly high number of endoscopes failing a cleanliness criterion," said Marco Bommarito, an investigator with 3M's infection prevention division, which conducted the study. "Clearly, we'd like no endoscopes to fail a cleanliness rating."

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