"A retrograde-viewing device improves detection of adenomas in the colon: a prospective efficacy evaluation"
In this prospective, multicenter study, researchers evaluated the added benefit for polyp detection during colonoscopy using the Third Eye Retroscope. A total of 249 patients (age range 55-80 years) undergoing screening or surveillance colonoscopy were enrolled in the study at eight U.S. sites, including university medical centers, ambulatory surgery centers, a community hospital and a physicians office.
For each polyp visualized, the endoscopist indicated whether it could be seen with the normal colonoscope view or whether it could be seen with the colonoscope only after it was first detected with the TER. Therefore, polyps that were visualized simultaneously with the forward view and the TER or that were initially viewed with the TER, but then were readily apparent on the forward view with the colonoscope, were not considered additional polyp detections by the TER. Polyps detected by the TER constituted a group of polyps that, in the best judgment of the investigators, would not have been detected by the forward-viewing colonoscope. Once any polyp was detected, the TER was withdrawn from the colonoscope, the polyp was removed by using standard techniques, and the TER was reinserted before continuing withdrawal.
The increase in detection of all polyps by using the TER was 13.2 percent and the increase in adenoma
detection was 11 percent, both statistically significant. The additional detection rates of all polyps by the TER were 9.7 percent in the left side of the colon (the splenic flexure to the rectum) and 16.5 percent in the right side of the colon (the cecum throu
|Contact: Anne Brownsey|
American Society for Gastrointestinal Endoscopy