hi my name is sana and i have had my op at the derby general i had to wait 13 weeks for my letter once it came i was ask to go in and was asked about eating habits and the obesity nurse will go thru with she will check you weight blood pressure ask you your medical history then diatition who wil ask you what you eat what exercise you do then after that the dr will see you dr larvn at the royal in fermry then after that they will send you a letter saying exactly what you said and that are you a candidate or not once that is done they will send you a pre op letter were u will be assesed after that two weeks you will get a date for your operation which will be done at the city general in derby thats were ur pre op also be done as well as you operation i had mine ther realy nice dr operation will be done by mr leeder or member it was a good experiance i went the day of my surgery and stayed over night i have so far lost 11 kg since december 14 2007 i have had one fill and feel good n my self plz keep n touch im also just under 22 stones knw was nearly 24 stones my bmi was 55 i hope this will help a bit if not too much