"This research is very significant as it is the first large study to provide direct rescreening data on a group of average risk patients who had normal findings on the initial screening colonoscopy," said John L. Petrini, MD, FASGE, president, American Society for Gastrointestinal Endoscopy (ASGE).
"As a result, physicians should consider this important finding when recommending a rescreening schedule to their patients, as this data could have an impact on the costs of colonoscopy and the resources to provide for colonoscopy. There is data suggesting that the procedure may be performed too frequently."
Researchers, led by Thomas F. Imperiale, MD, of the Indiana University School of Medicine and the Regenstrief Institute, examined 1,256 asymptomatic patients 50 years or older, who had no precancerous or cancerous findings on baseline colonoscopy and who underwent follow up colonoscopy at five years. Among this patient population, no cancers were discovered. Advanced adenomas were found in 16 patients (1.3 percent).
ASGE and American Cancer Society colorectal cancer screening guidelines for patients with normal findings on the initial screening colonoscopy recommend repeat screening for average risk individuals every 10 years if they have no symptoms or family history risk. While this data does not directly evaluate the 10-year recommendation, it does establish that colonoscopy screening does not need to be repeated before five years for average risk individuals.
An estimated 49,960 deaths are expected to occur from colorectal cancer in 2008. According to a study released in October 2007 from the CDC and the American Cancer Society, colorectal cancer deaths dropped nearly 5 percent between 2002 and 2004, more than the other major cancer killers (prostate, breast, and lung). Among the key factors playing a role in the decline was prevention through screening and the removal of precancerous polyps.
"This is excellent news and reinforces the importance of colorectal cancer screening beginning at age 50, or even younger if there is a family history of colorectal cancer or polyps," said Petrini. "Colonoscopy plays a very important role in colorectal cancer screening and prevention because it is the only method that allows us to remove polyps before they turn into cancer."
Anne Brownsey | EurekAlert!
New malaria analysis method reveals disease severity in minutes
14.08.2017 | University of British Columbia
New type of blood cells work as indicators of autoimmunity
14.08.2017 | Instituto de Medicina Molecular
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
16.08.2017 | Event News
04.08.2017 | Event News
26.07.2017 | Event News
17.08.2017 | Physics and Astronomy
17.08.2017 | Earth Sciences
17.08.2017 | Physics and Astronomy