A prospective evaluation of a variant of biliopancreatic diversion with Roux-en-Y reconstruction in mega-obese patients (BMI > or = 70 kg/m(2)).

Background: Super-obese patients with BMI > or = 70 kg/m(2) present a special subgroup among the obese population due to the higher incidence of severe comorbidities and increased technical difficulties in perioperative management. The optimal surgical approach still remains controversial.

Methods: From January 2002 to October 2007, 68 super-obese patients with BMI > or = 70 kg/m(2) (75.