Vascular complications are the most common type of complication after a cardiac catheterization. These include hematoma, pseudoaneurysm, arteriovenous fistula, peripheral artery occlusion and dissection, and retroperitoneal bleeding. The Pennsylvania Patient Safety Authority reports that nearly half the medical errors that occurred between June 2004 and December 2006 were cardiac catheterization complications, many of which were vascular related. The American College of Cardiology's National Cardiovascular Data Registry benchmark for vascular complications incidence is less than 1% for diagnostic catheterizations and less than 3% for percutaneous coronary intervention. The need to search for strategies to decrease vascular complication in diagnostic cardiac catheterization patients was a priority.