Risks and possible complications associated with bariatric surgery 

All our interventions are carried out laparoscopically and you must be aware that there is always a risk of conversion via the open route, either because of excessive adhesions due to previous abdominal operations, or due to unforeseen anatomical conditions. There are always risks inherent to any type of surgery, namely unexpected bleeding, risk of abdominal infection or wound infection, respiratory or thromboembolic problems. Also, after any type of abdominal surgery, there may be a short, medium or long term risk of creating adhesions which could cause intestinal obstruction, which could eventually require re-operation.

It is also important to be aware that for a very small number of patients, the response to bariatric surgery can be poor to none, especially if associated with poor follow-up. And during a surgical reoperation, the risk of complications increases.

Specific risks related to bariatric surgery

Minor complications:

Eating difficulties / Reflux / temporary regurgitation

Hematomas/wound infections

Major complications:

Hemorrhage requiring re-intervention

Leaking suture lines

Specific risks related to vertical or sleeve gastrectomy

Reflux requiring surgical correction

Stenosis (narrowing of the sleeve)

Specific risks related to gastric or duodenal diversion

Anastomotic stenosis (narrowing at one of the surgical connections)

Obstruction of the small intestine due to internal hernia or adhesions

Appearance of marginal ulcers

Dumping syndrome

Possible nutritional deficiencies (iron, vitamin B12, A, D, E, K, calcium)

Rare case of hypoglycemia secondary to hyperinsulinaemia.