Patients with heart failure undergoing major non-cardiac surgical procedures are almost twice as likely to die as other patients, according to researchers at the Duke Clinical Research Institute (DCRI).
In their analysis of Medicare data, the researchers also found, to their surprise, that the outcomes after major non-cardiac surgery were similar in patients with coronary artery disease and those with no heart disease.
The findings about heart failure patients are significant, the researchers continued, because very little is known about how these patients fare when they undergo surgery. With the aging of the American population and the increase in the number of surgeries being performed, the researchers said it is crucial to understand why such a disparity in outcomes exist. "While the risks of coronary artery disease on patients undergoing surgery have always been considered in assessing risk, there is very little data on which to base guidelines for treating patients with heart failure," said Duke cardiologist Adrian Hernandez, M.D., lead author of a study whose results will be published Oct. 6, 2004, in the Journal of the American College of Cardiology.
Richard Merritt | EurekAlert!
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
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Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
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