Hi Kelly,
I am the lady Jake mentioned, my partner had an embolisation on his varicocele last spring. It was different to the op your dh is having though, as he had it under local anesthetic and I think he was more or less ok a day or two later.It sounds like your dh is having the same thing that Jake's did.
Obviously I believe this made a huge difference to dp's sperm, as I did get pregnant the next month, but we sadly lost the baby at 13 weeks. I got pregnant again about 8 months after the op, and now have a beautiful daughter, 4 weeks old! I don't think there was much improvement in his actual sperm count when he had a check up a few months after the op, so maybe it just improved the quality?
We also took Marilyn Glenville vits, and dp took vit C, zinc, pycnogenol, flaxseed oil, co enzyme q 10,and tried to cut back on smoking and alcohol!
I hope this helps,
Allison xx