In general I don't find it too problematic. The party keeps some stuff and sells the stuff they can't really use (at half price, so that drops out some of the wealth right there). Then I just lower the treasure for a little while to balance things out.
If there are a lot of deaths quickly I understand the problem. Then you might take more drastic steps to lower the parties wealth.
If there are a lot of deaths quickly I understand the problem. Then you might take more drastic steps to lower the parties wealth.