An IABP is a mechanical device that supports heart function in severe heart failure. It is inserted into the aorta through a blood vessel. It inflates and deflates with each heartbeat. It improves blood flow to coronary arteries. It reduces the workload of the heart. It is used in critical cardiac emergencies. It stabilizes patients before surgery. It supports recovery after heart attack. It enhances oxygen supply to heart muscle. It is used in intensive cardiac care.