The Journal of Tehran University Heart Center aims to publish the highest quality material, both clinical and scientific, on all aspects of cardiovascular Medicine. It includes articles related to research findings. Technical evaluations, and reviews. In addition, it provides a forum for the exchange of information on all aspects of Cardiovascular Medicine, including educational issues. “ the journal of Tehran University Heart Center” is an International, English language, peer reviewed journal concerned with Cardiovascular Medicine. It is an official Journal of the Cardiovascular Research Center of the Tehran University of Medical Sciences (in collaboration with the Iranian Society of Cardiac Surgeons) and is published quarterly.