Surgeons at University Hospitals of Cleveland have demonstrated that the risk of brain damage associated with the use of the heart lung machine can be significantly reduced by modifying the traditional placement of cannulas (tubing) for returning blood flow to the patient. The findings were presented last month at the American Heart Associations annual Scientific Sessions conference in Chicago, Ill.
The neurological problems associated with bypass surgery have been widely reported. As much as 6 percent to 10 percent of bypass patients will experience memory loss, visual changes, or even stroke. Surgeons believe these outcomes are partly due to "debris" lining the aorta that may break off during surgery--under pressure exerted by the heart-lung bypass machine (which keeps blood flowing to the brain).
Alan Markowitz, MD, and a team of researchers at The Research Institute of University Hospitals of Cleveland and Case Western Reserve University studied the patterns of blood flow to the brain on the heart-lung machine and the risk of stroke from debris released into the aorta, the conventional site of blood return flow to the patient.
Eric Sandstrom | EurekAlert!
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The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.
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The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
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Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
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