Pregnancy and lap band

I am wondering what the chances of slippage after a person gets pregnant? I don't want to have procedure and then after pregnancy have to be put under to repair or remove. Anestesia would be dangerous to fetus. Any info?

http://www.obesityhelp.com/forums/postop_pregnancy/posts.html There are lap band folks there marsha rny 6/16/03 24 weeks and 6 days prego