I got a call from the VA a little while ago and they are wanting to send me to the St. Louis VA for a heart cath. Is a cath usually done for SAS and root aneurysim? Is this done by a cardiologist? I am not really comfortable at this point having this done at the VA. What should I look for and what questions should I ask? If I am not comfortable with this I think I will contact another cardiologist. From what I have read the risk increases with those over 60 I am 61 and those with advanced valve disease. I have SAS ,88. Will this test give more information to a surgeon than the echos I have had done?