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New colonoscope provides ground-breaking view of colon
Date:5/18/2013

s improved imaging technology with these findings as adenomas can be difficult to detect with only forward-viewing capabilities.

"Adenomas often hide behind folds in the colon and can be very difficult to find with a forward-viewing scope," Professor Gralnek said.

"Lower adenoma miss rates have important implications for patient surveillance," he added. The additional information FUSE provides to doctors may allow them to adjust patients' surveillance intervals according to risk level, ultimately helping to prevent incremental colorectal cancers. The FUSE scope could be available as early as this summer.

Colonoscopy withdrawal time makes a big difference for diagnosis

DDW also features other advances in colonoscopy relating not to what doctors see, but to how long they look. Researchers at Stanford University compared a three-minute versus six-minute withdrawal time during colonoscopy. The polyp miss rate was almost twice as high during the shorter procedure.

"The de facto standard of care for colonoscopy withdrawal time, which is six minutes, was based on a single observational study," said Sheila Kumar, research fellow in Stanford's division of gastroenterology and hepatology. "More data were needed to ensure that we are providing the best care possible. Our findings provide evidence-based support that prolonging withdrawal time significantly decreases polyp miss rates at colonoscopy."

Dr. Kumar's research represents the first randomized controlled trial examining the effect of colonoscopy withdrawal times on polyp miss rates. The study was conducted with patients undergoing colonoscopies at Stanford and the Palo Alto Veterans Administration Hospital. Patients were randomized to an initial three-minute or six-minute colonoscopy withdrawal time. Patients then underwent a "second look" six-minute withdrawal to determine if polyps were missed with the first look.

"The study design also allow
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Contact: Aimee Frank
newsroom@gastro.org
301-941-2620
Digestive Disease Week
Source:Eurekalert

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