Estifanos is having a heart catheterization tomorrow (Wed).  He’s got an exit valve in his heart that isn’t opening up all the way, so they need to take a closer look.  If it’s just the valve (and not a blockage from tissue around the valve), they will use a balloon to open it up more and he should be good as new.  It’s not a major surgery, but if you’re so inclined, prayers would be nice.