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