The new test is "highly accurate, noninvasive, requires no bowel preparation, or restrictions on drugs, or dietary changes and can be performed with samples sent by mail, obviating the need, expense and inconvenience of going to the doctor , "she says Dr. David Ahlquist of the Mayo Clinic . Researchers at Mayo Clinic and Exact Sciences Inc . developed in this test set detection is now under investigation. According to experts, the results of two recent studies reveal that this test is highly accurate and significantly more sensitive than other noninvasive tests to detect pre-cancerous growths (adenomas) and early cancer. "This test, with its high accuracy, can improve participation rates, thanks to the benevolent features it offers to patients, "says Dr. Ahlquist.
What is the new screening examination of stool DNA genetic markers specific search in the stool samples flanked by patients. If the result is positive, the next step is a colonoscopy to remove polyps to prevent the subsequent formation of a cancer, says Dr. Ahlquist. on its accuracy: - In the nearly 400 cases, the stool DNA test detected 87 percent of the curable stage colorectal cancer. It is noteworthy that neither the location nor the stage of the tumor affected the sensitivity of detection. - The review identified most large precancerous polyps who are at high risk of progressing to cancer. - The sensitivity was 64 percent for polyps more than 1 centimeter (cm), 77 percent for those over 2 cm, and 92 percent for those above 4 cm. "It seems important to mention that this test provides a means unique, noninvasive and accuracy of large polyps, offering the hope of actually prevent cancer development, "said researcher Dr. Stephen Thibodeau, Mayo Clinic geneticist
Although that recommends a colorectal cancer screening to everyone after 50 years, 60 percent of patients are diagnosed when the disease is in advanced stage, mainly due to failure to follow . The examination is critical because survival rates increase dramatically when colorectal cancer is detected early. Source: Mayo Clinic
