The Full form of CCU is Coronary Care Unit. CCU or CICU (Cardiac Intensive Care Unit) is a hospital ward specialized in the care of patients with unstable angina, cardiac dysrhythmia, heart attacks, and various other cardiac conditions that require continuous monitoring and treatment. Most of the people interviewed spent the first few days after their heart attack in the CCU (Coronary Care Unit) of the hospital where they could receive a high level of specialized care. People are treated in a Coronary Care Unit if they have an unstable, acute or serious cardiac condition that requires minute-to-minute monitoring, or that requires specialized cardiovascular therapy. The most common reason is an acute heart attack for being admitted to a CCU. It is also a form of acute coronary syndrome. The main feature of CCU is the availability of telemetry or the continuous monitoring of the cardiac rhythm by ECG (electrocardiography). This allows early intervention with cardioversion, defibrillation, or medication, improving the prognosis. As arrhythmias are relatively common in this group, patients with unstable angina or myocardial infarction are routinely admitted to the CCU. For other indications, such as atrial fibrillation, a specific indication is generally necessary, while for others, such as heart block, Coronary Care Unit admission is standard.