Evolution of Critical Care Cardiology: Transformation of the Cardiovascular Intensive Care Unit and the Emerging Need for New Medical Staffing and Training Models

Abstract

Critical care, defined as the diagnosis and management of life-threatening conditions that require close or constant attention by a group of specially trained health professionals, is inherent to the practice of cardiovascular medicine. The demand for cardiovascular critical care is increasing with the aging of the population and is reflected by trends in the use of critical care in general.1 Between 2000 and 2005, although the total number of hospital beds in the United States declined by 4.2%, the number of critical care beds increased by 6.5% and the annual costs attributed to critical care increased by 44%, representing 13.4% of hospital costs.2 Projections for the next 15 years suggest that the need for critical care will increase markedly in the United States and globally.1,3–5 For example, in Canada, a 57% increase in the need for critical care beds is anticipated during that period.5 Concurrent with increases in demand, the medical demographics of general and cardiac critical care have evolved toward a patient population with an increasing number of comorbid medical conditions who require more prolonged and more technologically sophisticated invasive support. As a result, the delivery of critical care is advancing substantially in its complexity. Moreover, accumulating evidence has indicated that outcomes are better when critical care is provided by specially trained providers in a dedicated intensive care unit (ICU).6–9 In the context of this evolution, provision of optimal care in the contemporary cardiac ICU (CICU) presents a different set of challenges and requires an expanded set of skills compared with 10 years ago. Cardiovascular medicine has lagged behind other medical disciplines that have met the “critical care crisis”4 with ICU-focused innovations in organization, training, and quality improvement. Therefore, the American Heart Association Council on Cardiopulmonary, Critical …