This trial is an assessment of the efficacy of three thromboprophylaxis regimens in two types
of bariatric surgery.
- gastric banding and gastric bypass on anti-Xa activity levels
The study includes two groups of 150 patients scheduled for gastric banding or gastric
bypass.
Assessment of anti-Xa levels before and 4 hours after the injections from day 0 to 2 in order
to determine the best prophylactic regimen allowing expected values ranged between 0.3 and
0.5 IU / ml.