Have you undergone surgery for your cardiovascular condition?

I had a heart attack a few years ago that resulted in a stent. And then later I had a pacemaker implanted. I guess I didn't really know how pacemakers worked before, because I was expecting to be put under and have my chest cracked open. I was shocked when they told me I'd be awake for it! They had me drugged up a bit with an IV so I didn't feel much other than the initial prick of the local anaesthetic. I think in only took an hour or so in all, and I stayed overnight in the hospital. Overall it went well for me!