reverse gastric bypass

Has anyone reversed the RNY or know of anyone who did this....please let me know the experience and are you or they happier now

I have heard of a few surgeons who have attempted it on very sick people who could die if it wasn't done.  I know it is a difficult procedure.  Maybe ask around the medical community if they know of a surgeon who is confident enough to do that.

Is there a reason for the reversal?