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      Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
    • Numerical inputs and outputsFormula
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    Patent Pending

    Los Angeles (LA) Grading of Esophagitis

    Stratifies severity of esophagitis based on endoscopic findings, recommended by ACG guidelines.
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    When to Use
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    Why Use

    Patients with findings of erosive esophagitis on endoscopy.

    Developed by consensus of a working group at the 10th World Congress of Gastroenterology in 1994.

    Mucosal break(s) ≤5 mm, without continuity across mucosal folds
    Mucosal break(s) >5 mm, without continuity across mucosal folds
    Mucosal break(s) continuous between ≥2 mucosal folds, involving <75% of the esophageal circumference
    Mucosal break(s) involving ≥75% of the esophageal circumference

    Result:

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    Next Steps
    Evidence
    Creator Insights

    Advice

    The ACG recommends that patients with LA Grade A esophagitis undergo further testing to confirm GERD diagnosis (conditional recommendation, low level of evidence).

    About the Creator
    Dr. David Armstrong
    Dr. Lars R. Lundell
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