While the scope is wide, Dr. Gajarski's primary research focus involves advancing the science of cardiac transplantation. This includes participation in new immunosuppression drug trials, long-term outcomes research and assessment of graft rejection and coronary vasculopathy using newer non-invasive imaging modalities. He is also participating with a larger institutional group to assess long-term outcomes and QOL after congenital surgical repairs as well as physiology-based and quality-improvement initiatives in the cardiac ICU.