Is small-bowel radiography necessary before double-balloon endoscopy?

Area of Science:

• Gastroenterology
• Diagnostic Imaging
• Endoscopy

Background:

• Small-bowel radiography is a traditional method for diagnosing small intestine lesions.
• Enteroscopy, particularly double-balloon endoscopy (DBE), offers advanced diagnostic capabilities.
• The role of pre-endoscopy radiography in optimizing DBE yield requires clarification.

Purpose of the Study:

• To evaluate the diagnostic yield of small-bowel radiography (SBR) performed prior to double-balloon endoscopy (DBE).
• To compare the diagnostic performance of DBE across patient groups stratified by SBR findings.
• To determine if SBR influences the overall diagnostic accuracy of DBE.

Main Methods:

• Retrospective analysis of 124 patients undergoing DBE between 2004-2006.
• Patients categorized into three groups: abnormal SBR, normal SBR, and no SBR.
• Comparison of indications, approaches, and diagnostic yields of DBE among the groups.

Main Results:

• DBE diagnostic yield was highest in patients with abnormal SBR (71.1%) compared to no SBR (45.8%) and normal SBR (35.5%).
• Patients with abnormal SBR were younger and had less obscure bleeding than those with normal or no SBR.
• The diagnostic yields of SBR (59.2%) and DBE (56.6%) were not statistically different.

Conclusions:

• Preceding double-balloon endoscopy with small-bowel radiography appears to enhance diagnostic accuracy.
• Small-bowel radiography can be a valuable tool in the diagnostic pathway for small intestine pathologies.
• The findings support the continued use of SBR as an adjunct to DBE.