Thanks a lot for writing this up. It was very informative.
I hate to admit it, but his part made me laugh a bit:
As for the obstruction in my azygos vein, Dr. Sclafani thinks that there is an instrument that he didn't have on hand during my procedure which he could use to reach the area of stenosis and balloon it open.
It reminded me of the times I was in the middle of fixing something on my car, and found I didn't have the right tool, and spent the next few hours running around town trying to find it.