Cardiology Research Center director Dr . Yevgeny Chazov, who for years helped keep Leonid Brezhnev alive, told the Interfax news agency that tests on Yeltsin showed " an operation on the coronary vessels is recommended " but that his heart's mitral valve would not have to be replaced.
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There is a potential role for the use of nitric oxide in alleviating bladder contractile dysfunctions, and recent evidence suggests that nitrates may be beneficial for treatment of angina due to reduced myocardial oxygen consumption both by decreasing preload and afterload and by some direct vasodilation of coronary vessels.
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The five-year follow-up results of SYNTAX showed, depending on the complexity of coronary vessel disease, PCI was either equally effective or inferior to CABG . Similarly, results from the FREEDOM trial published after five years showed CABG to be superior to PCI in reducing rates of death and myocardial infarction.