Gastric bypass procedures result in greater weight loss in severely obese patients than gastric banding procedures, according to a new study.
The most common form of gastric bypass, the laparoscopic Roux-en-Y procedure, involves making a small pouch at the top of the stomach which then bypasses the first section of the small intestine, reducing the amount of calories that the body can absorb.
Gastric banding involves placing a band-like device around the stomach, which divides the stomach into two smaller sections, making it uncomfortable to eat more than a small amount of food at any one time.
A study conducted at the SUNY Health Science Centre of Brooklyn, New York, found that, although gastric bypass procedures took longer to perform and required longer hospital stays, patients tended to have lost more weight after 30 days than those treated with banding.
The study authors wrote: "In our experience, laparoscopic Roux-en-Y gastric bypass appears superior to laparoscopic adjustable gastric banding in super morbidly obese patients."
In addition, patients treated with gastric bypass had fewer complications, with only 28 per cent of bypass patients experiencing dehydration and vomiting after 30 days, compared with 78 per cent of patients who had undergone banding procedures.
Gastric bypass patients also experienced a greater reduction in high blood pressure, and diabetes rates fell from 17.4 to 0 per cent, compared to gastric banding patients, where rates only fell from 18.3 to 11 per cent.
Nearly four fifths of bypass patients said they were very satisfied with their procedure and none were dissatisfied.
However, only 46 per cent of gastric banding patients were very satisfied and ten patients claimed to be dissatisfied or regretful of having the procedure.
The results are published in the July's Archives of Surgery.