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A new grading assessment of eosinophilic esophagitis using red dichromatic imaging: a pilot study
Shiko Kuribayashi1, Hiroko Hosaka1, Shota Tomaru1
1Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi, Japan.
Background And Aims:
The endoscopic reference score using white-light imaging (WLI) is utilized for objectively evaluating the severity of findings in patients with eosinophilic esophagitis. A novel image-enhanced endoscopy technique, red dichromatic imaging (RDI), can visualize deeper vessels in the GI tract, which may assess edema more precisely than WLI.
Methods:
A total of 21 consecutive patients with eosinophilic esophagitis were prospectively evaluated. Patients were categorized according to 3 grades based on the visibility of vessels with RDI. Clinical features, such as peak eosinophil counts and presence of symptoms, were reviewed.
Results:
There were 10 patients with RDI Grade 0/1 and 11 patients with RDI Grade 2. Peak eosinophil counts and the prevalence of heartburn were significantly higher in patients with RDI Grade 2 than in patients with RDI Grade 0/1.
Conclusions:
The severity of eosinophilic infiltration could be predicted more precisely using RDI than by evaluations with WLI.
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