About Balloon Enteroscopy (Balloon Endoscopy)

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Balloon Enteroscopy (Balloon Endoscopy)

Balloon Enteroscopy (Balloon Endoscopy)
Balloon Enteroscopy (Balloon Endoscopy)

Balloon Enteroscopy (Balloon Endoscopy) Information

Double balloon endoscopy

For double balloon endoscopy, similar equipment is used, but a second balloon is located on the tip of the endoscope. Both balloons - the one on the overtube and the one on the endoscope - can be alternatively inflated to anchor the overtube or the endoscope to assist with the passage of the endoscope or overtube, respectively.

Introduction to endoscopy

The use of upper and lower gastrointestinal endoscopes has revolutionized the diagnosis and treatment of diseases of the esophagus, stomach, duodenum, and colon (large intestine). The last remaining frontier in the intestines has been the small intestine. Wireless capsule endoscopy allows physicians to visualize the inside of the intestines from the esophagus through to the colon, but capsule endoscopy has limitations, the most notable of which are the inability to control the capsule's passage and to perform therapeutic interventions, such as biopsy and electrocautery. Although capsule endoscopy is likely to remain an important diagnostic procedure because of its simplicity, the limitations of capsule endoscopy have been overcome by the development of balloon endoscopy, also known as enteroscopy.

Single balloon endoscopy

For single balloon endoscopy, a 200 cm long flexible, fiberoptic, endoscope (a hose-like tube one centimeter in diameter with a light and a camera on the tip) is fitted with an equally long overtube that slides the full length of the endoscope. On the tip of the overtube is a balloon that can be inflated and deflated. The balloon is blown up to anchor the overtube within the intestine. While the overtube is anchored, the endoscope can be advanced further into the small intestine. By withdrawing the overtube the small intestine can be shortened and straightened to make the passage of the inner endoscope easier. The balloon may then be deflated so that the overtube can be inserted further and the endoscope advanced again. The endoscope itself is a standard endoscope with working channels that allow the intestine to be inflated with air, rinsed with water, or used to guide biopsy or electrocautery instruments to the tip of the endoscope.

What to expect with balloon endoscopy

Balloon endoscopy, like other gastrointestinal endoscopy, requires intravenous sedation. The procedures are long, often requiring 1-3 hours. The most important complications of balloon endoscopy are perforation of the small intestine or bleeding either due to insertion of the endoscope or the use of therapeutic instruments.

What is balloon endoscopy?

There are two types of balloon endoscopy: single balloon and double balloon.

What is the future for balloon endoscopy?

Balloon endoscopy is revolutionizing the diagnosis and treatment of small intestinal diseases. Nevertheless, its use is restricted because of the large expenditure of time that is necessary to perform it. Either newer, faster systems will need to be designed or, perhaps, paramedical personnel will be needed to perform the insertions before balloon endoscopy is as commonly performed as other types of endoscopy. For now, when there is concern about disease in the small intestine, wireless capsule endoscopy often is performed first. Then, if abnormalities are found, or if despite a normal capsule endoscopy there still is a strong suspicion that there may be disease in the small intestine, balloon endoscopy is performed.

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