An intra-aortic balloon pump (IABP) is a medical device used to support patients with severe heart conditions. It consists of a balloon catheter inserted into the aorta, the main artery carrying blood from the heart. The balloon inflates and deflates in sync with the heart's rhythm, helping to improve blood flow and reduce the heart's workload. IABPs are often used in critical care settings, such as during cardiac surgery or for patients experiencing heart failure. They can provide temporary support while doctors work on more permanent solutions, such as surgery or medication adjustments.