make sure you get a personal recommendation from someone that has had it done there by a named surgeon, make sure you get the same guy and try and look up his track record first, and before you go under the anaesthetic make sure you actually see him in cap & gown.
Also you want to make sure they either speak english or can provide an interpreter. I know Spain has a good track record for this, who has actually told you about Venezuela surgeons, pls do your homework and dont fly back too soon.
Remember if things go wrong its a long way back to complain and costly flights too. If you are happy with all the answers go ahead.
Good luck.