As a cardiovascular specialist, also called a cardiovascular invasive specialist, you assist doctors in the treatment of cardiac disease, most often through the use of cardiac catheterization technology. Your responsibilities range from preparing and educating patients on different treatment types to performing common cardiac interventional procedures. Cardiac catheterization and the interventional procedures you perform as a cardiovascular specialist frequently obviate the need for more invasive and dangerous heart surgeries, saving lives and resources. You may be employed by a hospital, a specialized clinic, or a laboratory, and you may have opportunities for further specialization within your field, depending on your workplace.