Heart transplant, Transesophageal echocardiogram, Transthoracic echocardiogram, Mechanical circulatory support device i...mplantation, Post-transplant long-term care, Pre-transplant evaluation, Sarcoidosis, Amyloidosis, Heart failure, Congenital heart defects in adults, Hypertrophic cardiomyopathy, Myocarditis, Cardiomyopathy, Cardiac amyloidosis, Cardiogenic shock, Heart transplant complication, Cardiac sarcoidosis