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Vol 43 # 2 June 2011 - Kma.org.kw

Vol 43 # 2 June 2011 - Kma.org.kw

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<strong>June</strong> <strong>2011</strong><br />

KUWAIT MEDICAL JOURNAL 151<br />

Fig. 1: Showing the gastrostomy opening with the absence of the<br />

internal bumper indicating buried bumper syndrome<br />

After a re-evaluation with the gastroenterologist, the<br />

surgeons agreed to remove the tube. The tube was<br />

removed with no complication.<br />

There was no need to insert another PEG tube as<br />

the patient was regaining her ability to swallow and<br />

was taking her food orally.<br />

DISCUSSION<br />

The migration of the internal bumper into the<br />

gastric mucosa or abdominal wall as complication of<br />

PEG tube insertion was first described in 1988 [3] . Later,<br />

it was called ‘’Buried Bumper Syndrome’’ by Klein [4] .<br />

BBS often manifests months to years after PEG tube<br />

placement. It presents as abdominal pain mainly<br />

during feeding time, difficulty feeding or flushing the<br />

tube, and inability to move or rotate the tube because<br />

the internal bumper may have been well-buried<br />

beneath the gastric mucosa. Nevertheless, BBS has<br />

been rarely reported to present as malena resulting in<br />

fatal consequences [5] .<br />

BBS is considered as an uncommon complication<br />

occurring in 1.6% of patients with PEG replacement [6] .<br />

However, a study from Taiwan suggested that BBS<br />

is not that uncommon as previously thought. In<br />

addition, it suggested that BBS can occur soon after<br />

tube insertion [2] .This is possibly due to the increasing<br />

number of patients with PEG tube.<br />

BBS most commonly is suspected by physical<br />

examination. Ultrasound, contrast radiography,<br />

computed tomography or magnetic resonance imaging<br />

are usually unnecessary in clinical practice. This<br />

complication is usually confirmed endoscopically, as<br />

in our case.<br />

As physicians with increasing number of patients<br />

with PEG tube, it is very important for us to recognize<br />

that once BBS is diagnosed, the PEG tube should be<br />

removed even if the patient is asymptomatic, because<br />

the tube may continue to migrate until it is completely<br />

buried in the abdominal wall and that itself may lead to<br />

very serious complications such as sepsis, peritonitis,<br />

stomach perforation and bleeding.<br />

BBS most likely occurs as a result of excessive<br />

tension between the internal and external bumpers<br />

leading to gastric ulceration at the bumper site [7] .<br />

Therefore, avoiding external tube traction must be<br />

highlighted to the caregivers. For example, avoidance<br />

of the placement of gauze pads beneath the external<br />

bumper in essential. It has been suggested that<br />

amendment of the physical properties of the bumper<br />

due to gastric acid exposure can increase pressure<br />

necrosis of the gastric wall and results in migration of<br />

the bumper [8] . Also, malnutrition, poor wound healing<br />

and significant weight gain secondary to successful<br />

enteral nutrition all have been implicated in the<br />

incidence of BBS [9] .<br />

Caregivers should be instructed to push in the PEG<br />

approximately one centimeter and to rotate it before<br />

Fig. 2: Showing normal saline coming out of the gastrostomy opening indicating that the tube is patent

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