MARSHFIELD, WI -- (MARKET WIRE) -- April 26, 2007 -- On Wednesday, May 16, at 4 p.m. CDT, an Internet audience will have a rare chance to watch a heart care procedure as it happens. During a live webcast on www.OR-Live.com from Saint Joseph’s Hospital in Marshfield, Wisconsin, Marshfield Clinic interventional cardiologists will perform a live cardiac catheterization procedure as well as a possible angioplasty and stent placement. A physician moderator will be on hand to walk the audience through the procedure and give them the inside scoop on the crucial decisions the heart care team is making as they happen.