heart valve surgery cardiology for patient in hospital. prepare transcatheter aortic valve implantation in doctor's hand

mitral valve stenosis secundum type asd tricuspid chamber balloon transcatheter aortic replacement cardiomyopathy atrial tetralogy fallot cardiac catheter catheterization stenting atherosclerosis angioplasty ventricular cardiologist heart attack microsurgery arrest dysfunction artificial coronary angiography dilated bypass biohazard sternum wire hypertension surgery cardiovascular cardiology pericardial electro physiologist pericardium cardioplegia implantation procedure medical doctor hospital patient prepare 39aph39 hand