An introduction to cardiothoracic ICU. In this 30 minute interview with Heather Low, an intensivist with an interest in CT ICU, we cover a few topics of interest to those who are new to, or want to know more about cardiothoracic intensive care. We discuss what to look out for at the hand over, high risk patients, complications of cardiopulmonary bypass, the hypotensive patient, the patient with a low cardiac index, arrhythmias and intra-aortic balloon pumps.