A UCLA/Veterans Affairs study showed that more than 40 percent of patients who initially had received a positive result on a fecal occult blood test (FOBT) -- an initial screening tool for colon cancer -- did not receive appropriate diagnostic follow-up tests such as a colonoscopy or barium enema in 2002. According to the authors, the study may even underestimate this problem in the United States, since previous studies have shown the VAs level of preventive care and follow-up traditionally has been higher than at most other health care settings.
Published in May in the journal Diseases of the Colon & Rectum, the UCLA/VA study is one of the largest reviews of colorectal screening and follow-up patient data to date. The study used data from the VA, the nations largest integrated health care system. The study was performed as a prelude to a national VA effort, now underway, to improve colorectal cancer screening and suggested the need for better medical follow-through for patients with potential colon cancer.
Study authors took advantage of the VAs ongoing quality improvement program to analyze 39,870 patient records. Overall, 61 percent of eligible VA patients had been screened for colorectal cancer, a rate significantly higher than the national average. Of the screened population, 313 patients had an abnormal FOBT result. Only 59 percent, or 185 patients, of this group received follow-up diagnostic tests such as a colonoscopy or a barium enema. Forty-one percent, or 128 patients, received no follow-up at all in the six months following the FOBT.
Rachel Champeau | EurekAlert!
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Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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