Eosinophilic Esophagitis Endoscopic Reference Score (EREFS)
Calculator
When to use
Edema
Grade 0: Absent distinct vascularity)
Grade 1: Present loss of clarity or absence of vascular markings)
Rings
Grade 0: None
Grade 1: Mild subtle circumferential ridges)
Grade 2: Moderate distinct rings not impairing passage of a standard diagnostic endoscope)
Grade 3: Severe distinct rings not permitting passage of a diagnostic endoscope)
Exudate (with plaques)
Grade 0: None
Grade 1: Mild ≤ 10% esophageal surface area)
Grade 2: Severe > 10% esophageal surface area)
Furrows (vertical lines, longitudinal furrows)
Grade 0: None
Grade 1: Mild without visible depth)
Grade 2: Severe with mucosal depth)
Stricture
Grade 0: Absent
Grade 1: Present
Calculation
Please enter all the required inputs.