The Razavi Hospital is regarded as one of the greatest medical care centers in Iran and the only hospital internationally accredited by Canada and Germany. It recruited the very best and the most experienced healthcare providers from all over the world and the country and attempted to offer update treatment options for the patients. In order to extend the medical knowledge, more than 153 congresses, national and international conferences and training workshops have been held by Razavi Hospital up to the end of the year 2015. The most important one is the International Congress of Cardiovascular Surgery held by Razavi Hospital since 2008 per year.