Dr. Howard Eisen, a Philadelphia based cardiac surgeon and cardiologist offering insights from his many years working in transplant where he is well known as a researcher on the leading edge of the developments in this field. He is a frequent contributor to research articles that appear in peer review journals worldwide. In this, his 2nd contribution to the TRIO Transplant Presentation Library series, Dr. Eisen provides an update of transplant technology, looking into the future of several existing and developing avenues of great promise.