Cardiology offers with the problems of the heart in addition to a few components of the circulatory device. The subject includes medical analysis and remedy of congenital coronary heart defects, coronary artery disease, coronary heart failure, valvular coronary heart ailment and electrophysiology. Physicians who specialize on this area of medicine are referred to as cardiologists, a area of expertise of inner medicine. Pediatric cardiologists are pediatricians who specialise in cardiology. Physicians who focus on cardiac surgery are referred to as cardiothoracic surgeons or cardiac surgeons, a forte of wellknown surgery. Although the cardiovascular system is inextricably connected to blood, cardiology is noticeably unconcerned with hematology and its sicknesses.