Esquerra doesn't do a true Hess but he does measure and then comes up with his own ratio, that he feels is what each patient needs according to age, circumstances, etc.
My total bowel was 600, he made my common channel 75, Alimentary Limb 240 and Biliopancreatic Limb 285.
Therefore my absorbing (AL and CC) equal 315, and my Non-absorbing (BPL) is 285, so not a 50-50 ratio as Hess calls for, but very close! My 315 absorbing to 285 nonabsorbing has been doing very well for me and I have not had potty problems or moody stomach problems either and weight loss has been good. I did talk to Dr. Esquerra face to face and expressed that I wanted the Hess method and he assured me he did measure and calculate. I think he feels the little extra absorbing is to the patients advantage. I'm coming up on my one year surgiversary on June 10 and I'm currently at 85% of EWL and a BMI of 27.9 (started with a 45!). Oh, and I'm a shortie, at 5'1" and we are notorious for having hard time reaching goal I have been told.