While open heart surgery is still the gold standard for valve replacement, it carries significant risk: a large surgical incision is made in the chest, and the patient’s heart is stopped while he or she is placed on a heart-lung machine during the procedure. Dr. Vaikom Mahadevan, Division of Cardiology at UCSF, explores what can be done, short of open heart surgery, to open closed coronary arteries or diseased heart valves. Series: "Mini Medical School for the Public" [Health and Medicine] [Show ID: 29721]