My mother-in-law is 63yrs old,has had 2 heart attacts,1 in feb,diebetic,320lbs.Is there any way to do a heart cath besides thru the legs and arms?A couple years ago she had a heart cath done and found that both her leg arterys and her left arm artery is blocked.Today they tried going thru her left arm with no luck,it is now also blocked.So we are wondering what else can be done,any info is greatly app.