Cardiovascular center performed coronary angioplasty, introduced arrhythmia clinic for the first time in the regions of Busan and Gyeongnam, and performed arrhythmia ablation most of the time. Our professors at the center are all specialists in their field who introduced high frequency catheters for the fist time in Korea, assuming a leading role and published many papers on "Circulation" which is one of the most respected journals in the field of heart in the world.