The general risks of surgery, and of rapid weight loss apply to this operation just like the adjustable gastric band or gastric bypass.
Specific risks of the operation include:
Leakage from the gastric staple line in 1.0 %, Postoperative bleeding in 0.5 – 1% of cases, stricture (tight scar in the stomach tube) in 2%.
These risks are higher when the surgery is done in patients who have had previous gastric operations or have a BMI greater than 50.
Long term risks & side effects include:
Vomiting in 20%, gastro-oesophageal reflux in 30%, anaemia, vitamin D deficiency, inadequate weight loss or late weight re-gain can occur.
Other risks and side effects may include nausea, anorexia and revision surgery.