Starting beta-blocker treatment within 24 hours of cardiothoracic surgery provides significant recovery benefits according to new research in The Annals of Pharmacotherapy. Beta-blockers shortened hospital stays by 2.2 days and reduced atrial fibrillation, a dangerous heart rhythm, by 17.3%. These important findings were released early at The Annals of Pharmacotherapys Articles Ahead of Print (www.theannals.com) and will appear in the journals December print issue.
In the article entitled, "Impact of Prophylactic Postoperative Beta-Blockade on Post-Cardiothoracic Surgery Length of Stay and Atrial Fibrillation," Craig I. Coleman PharmD, C. Michael White PharmD, and co-researchers at Connecticuts Hartford Hospital report findings from 1660 patients collected over a 4-year period. In the largest trial of its kind to date, all patients received standard care and half also began beta-blocker treatment shortly after surgery.
In addition to reduced hospital stays and atrial fibrillation, early beta-blocker use was also associated with significant reductions in patient death, the risk of fluid in the lungs, and the need for a balloon pump to assist the heart. Those events were reduced by 59%, 55%, and 53%, respectively. There was no difference in the occurrence of post-surgical stroke or heart attack between the two groups.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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