Valve thickening and calcification are somewhat different terms, though they often co-exist.
ValvesHeart valves
Heart valves - anterior view
Heart valves - superior view do not usually get calcified at a young age, unless they are damaged. Possibly, the valve is being damaged by the VSD and the calcification is a sign of this. Your symptoms could be due to the valve, the VSD or both.
Could you please drop me an e-mail at ***@****
My wife's doctor just told her today that she had "thickening of
the aorta valve and he wasn't very clear. Maybe you could offer
some info for us. Thanks Doug.
Darryl