P-B03 Gastric Band Tubing Causing Small Bowel Obstruction
Authors: Halim Kashif , Lee Ana , Odogwu Stephen , Khan Amir 
Published: December 2021

Abstract

Background
Laparoscopically adjustable gastric bands (LAGB) have been widely employed as a means of weight loss in bariatric surgery over the past two decades. Although now largely superseded by other bariatric surgical techniques, complications from gastric bands continue to be encountered in surgical practice.
We report an unusual case of small bowel obstruction due to an internal hernia caused by gastric band tubing resulting in closed loop small bowel obstruction.
This is not commonly encountered and emergency general surgeons need to have a high index of suspicion for this condition as a possible cause for small bowel obstruction.

Methods
A 40 year old male presented with abdominal pain, vomiting and failure to open bowels or pass flatus for nine days. Twelve years previously (2008) he had had Roux n Y gastric bypass (RYGB), followed by by laparoscopic gastric banding of the RYGB about two years later (2010) also in the private sector. He had a soft but distended abdomen, and empty rectum on rectal examination.
CT scan abdomen reported as:
Multiple loops of distended small bowel demonstrated. No air seen in rectum, indicative of small bowel obstruction. No pneumoperitoneum. There is dilatation of the mid and distal small bowel seen to an apparent transition point in the mid abdomen where a loop is noted associated with the tubing for the inflation device for the gastric band. This appears to be centred on the cause of obstruction and appears tied around the base of mesentery and may be creating a closed loop obstruction, by having created an internal hernia.
This patient had an internal hernia around loop of the gastric band tubing with resultant closed loop small bowel obstruction.
The patient underwent diagnostic laparoscopy with ileo-caecal resection and primary anastomosis. He made successful recovery. Deflated gastric band remains in-situ.

Results
While small bowel obstruction is most commonly due to adhesions in individuals who have had previous laparotomy, it is important to bear in mind other causes such as internal hernias particularly in cases of those with history of previous gastric banding or Roux n Y gastric bypass. Early intervention may be necessary to reduce the likelihood of bowel ischaemia and bowel resection. Laparoscopy is a useful tool in the management of small bowel obstruction.
Keywords: gastric band, small bowel obstruction, closed loop, emergency surgery, laparoscopy

Conclusions
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