I stopped using bupivacaine containing preservatives for epidurals and caudals, at least 14 years ago, and I`ve been using only  preservative free bupivacaine because of the risk of arachnoiditis.Just yesterday, though, I met someone that still uses the regular bupivacaine containing preservatives for epidurals everyday, and so do all his co workers.
What do you think about this?Is it acceptable?even though the risk of arachnoiditis exists?
have there been  any recent report of arachnoiditis following epidurals? I haven´t found any in the internet.