Since the realization in 1991 of the
National Institutes of Health Consensus Development Conference Draft Statement on Gastrointestinal
Surgery for
Severe Obesity, the
bariatric surgery become accepted by the medical
community as the most long-term efficient
procedure for the
treatment of
morbid obesity. The surgical
suggestion is based mainly in the
Body Mass Index of the
patient wight/height (kg/m2). Bariatric surgical
techniques can be classified according to their main mechanism of action in restrictives (adjustable gastric banding, sleeve
gastrectomy, open
vertical banded gastroplasty), malabsorptives biliopancreatic derivation Scopinaro type or biliopancreatic derivation with duodenal switch (Marceau) and finally the
Roux-en-Y gastric bypass. All these aspects are treated in the article.