Hi, Thanks for writing in. If the causes of congestive heart failure include coronary artery disease, then per cutaneous intervention procedures (angioplasty and stent placement) may be necessary. These procedures restore and improve blood flow to the heart muscle. The hospital stay for this procedure is about two to three days if there are no complications and it is done by a cardiologist. The cardiologist uses a technique, called cardiac catheterization, where a long, thin tube (catheter) is inserted into an artery of your groin, wrist, or arm and snaked to the site of the arterial blockage or narrowing near your heart. A wire tipped with a deflated balloon is passed through the catheter to the site and then inflated and deflated to compress the plaque deposits against your artery walls and restore proper blood flow. At this point the cardiologist may choose to place a stent in the artery.