The study analyzed the results of eight major research trials involving nearly 20,000 patients who underwent interventional heart procedures, such as balloon angioplasty or stent placement. Patients with peripheral arterial disease (PAD), which mainly includes blockages in leg arteries, were found to be more than twice as likely to die within a week after interventional heart procedures compared with patients free of PAD.
This doubling in mortality rates persisted at 30-day and later follow-up. At one year following the heart procedure, 5 percent of patients with PAD had died versus 2.1 percent of patients without PAD. However, while nearly half of Americans 65 or older are expected to have the condition by 2050, only a quarter of PAD patients presently receive treatment. Further, patients with PAD undergoing heart interventions were also more at risk for other complications, including blood clots and bleeding requiring a transfusion.
The study was authored by 13 internationally recognized cardiology researchers, including Dr. David J. Moliterno, Gill Heart Institute medical director and professor and chief of cardiovascular medicine in the UK College of Medicine Department of Internal Medicine, and Dr. Steven R. Steinhubl, associate professor and director of cardiovascular education and clinical research at UK.
"Peripheral arterial disease is prevalent in Kentucky and throughout much of the United States, yet it is strikingly under diagnosed and certainly under treated. It is undeniably easy to ask patients if their legs cramp when they walk, and if so to take a blood pressure recording in not only their arms but also their legs. These steps could be life-saving," Moliterno said.
While the study does not indicate that patients with PAD should avoid interventional procedures, it is a strong reminder that extra precaution should be taken when treating these patients.
Beth Goins | EurekAlert!
The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
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02.10.2017 | International Institute for Applied Systems Analysis (IIASA)
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.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
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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Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
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17.11.2017 | Studies and Analyses