introduce them to the society and let the people know that such services are provided in qadr center. the presence of more than a hundred speakers in 10 heart fields was one of the main points of this conference. there were experts in various fields of heart and heart sub- specialties from all over our country. cardiovascular surgeons, nurses who are active in the field of heart are participating in this congress , professors and speakers are both from inside the country and from abroad. we have speakers from america, spain, germany and england. send us more than 60 articles from all over the country to do. a jury team of 10 people chose the best 10 articles from among these 60 articles. for the first time, we have the first student congress where 100 students from all over the country came to present their ideas. this conference had good news for the people. the need of our patients for surgical interventions has decreased. why? because , for example, a decade ago, the valve, for example, let's say, the aorta or mitral valve , we used to carry out a lot with open heart, but now many