I know this post is old but since it's relevant to my situation, I thought I would reply anyway.
I had my original RNY on 9/10/04 and am scheduled for revision on 9/29/14 with the same doctor. I lost, all told, half of my original 341 pounds within 2 years and was pretty satisfied there. Then life happened, meet my husband and kids, got married and had a healthy baby boy. Then my husband lost his job and we lost our health insurance. I stopped doing my post surgery check ups. Within 5 years, I've gained about 100 pounds.
So I returned to my surgeon when I became covered by health insurance again. I had to meet the same pre surgery requirements as though I was having my first surgery. I. Am now scheduled for surgery on 9/29/2014 after being approved by insurance in less than 1week. I'm excited and nervous but know better what to expect, good and bad.