High-definition colonoscopy detects more polyps, Mayo Clinic resea...(duty at the time. So there was a natura...),Health

Date:10/28/2009

duty at the time. "So there was a natural randomization of patients to either standard or high-definition endoscopes, and physicians were not able to cherry-pick their patients," Dr. Wallace says. "No doctors used high definition more than any other and, in this way, you can eliminate most of the variables that can bias results of a clinical trial."

Researchers found that the rate of detection of adenomas polyps that are likely to become cancerous was 29 percent among patients who were scanned with high-definition endoscopes, versus 24 percent for those in which standard endoscopes were used.

"That is an increase of 20 percent," Dr. Wallace says. "While that may seem small, in light of the 14 million colonoscopies that are performed each year, even small differences add up to important improvements."

All three Mayo Clinic sites (Florida, Minnesota, and Arizona) now only use high-definition endoscopes to perform colonoscopies, Dr. Wallace says. Many clinics in the country have both kinds of endoscopes "so it will not be that hard to move to the newer, and better, technology," he says.

The study was funded by Mayo Clinic, and the authors declare no conflict of interest nor do they endorse the products mentioned in the study. Dr. Wallace did not receive any funds for this study from the company that produced the products evaluated.

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Contact: Kevin Punsky punsky.kevin@mayo.edu 904-953-2299 Mayo Clinic Source:Eurekalert

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