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KMID : 0359020070340050239
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Korean Journal of Gastrointestinal Endoscopy
2007 Volume.34 No. 5 p.239 ~ p.243
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Prevalence of the Endoscopic Barrett`s Esophagus Determined by Palisading Vessel and Inter-observer Variation
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Chung Jun-Won
Song Ho-June
Kim Jin-Ho
Lee Gin-Hyug
Choi Kee-Don
Kim Benjamin
Choi Kwi-Sook
Jung Hwoon-Yong
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Abstract
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Background/Aims: The Barrett’s esophagus is confirmed by performing a biopsy when the gastroesophageal junction (GEJ) and Z-line do not coincide. In Japan, the GEJ is at the distal end of the palisading vessel while Western countries define it as the proximal tip of the gastric fold. However, there is little data on the prevalence of an endoscopic Barrett’s esophagus and the inter-observer variation.
Methods: Four experienced endoscopists reviewed the endoscopic still images of 111 consecutive patients. The level of inter-observer agreement was expressed as a kappa value.
Results: The average percentage of patients with an endoscopically confirmed esophagus was 34.2%. The level of inter-observer agreement was substantial (kappa=0.698).
Conclusion: The prevalence of an endoscopic confirmed Barrett’s esophagus was high, and the inter-observer variation was substantial when the GEJ was defined as the distal end of the palisading vessel. Considering the low incidence of esophageal adenocarcinoma and the risk of hemorrhage from a biopsy, a more specific marker is needed in this high-risk group.
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KEYWORD
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Barrett`s esophagus, Esophageal adenocarcinoma, Gastroesophageal junction, Palisading vessel
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