Fewer than half of patients diagnosed with colorectal cancer had received a screening procedure at least six months prior to their diagnosis, according to a new study. Researchers writing in the February 15, 2005 issue of CANCER, a peer-reviewed journal of the American Cancer Society, further say almost 94 percent of colorectal cancer patients had either not undergone a colonoscopy at all, or not until having the procedure that led to their diagnosis.
Professional societies unanimously recommend colorectal cancer screening in older adults. The premise is mortality and morbidity is reduced when a premalignant growth, which is generally at an earlier stage, is detected and treated. Clinicians can use tests as simple as the fecal occult blood test (FOBT), which is the cheapest but least sensitive test, to tests that examine part of the colon with the sigmoidoscopy, or all of it with a colonoscopy or barium enema. The colonoscopy is the most sensitive test.
In order to characterize the use of the various screening tests in the population and their association with cancer stage, Gregory S. Cooper, M.D. and Jonathan D. Payes, M.S. of the University Hospitals of Cleveland and Case Western Reserve University reviewed the screening history and cancer stage of 5,806 elderly patients diagnosed with colorectal cancer.
David Greenberg | EurekAlert!
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Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
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