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

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