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    Sliding Hiatal Hernia

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    The esophagus connects to the stomach at an opening in the diaphragm called the hiatus. The lower esophageal sphincter (LES), which is normally at the same level as the diaphragm, keeps stomach contents (food, acid, and other digestive juices) from backing up (or refluxing) into the esophagus.

    But when a sliding hiatal hernia is present, part of the stomach moves up through the hiatus and into the chest cavity. This pushes the lower esophageal sphincter (LES) up into the chest cavity away from the hiatus. Away from the hiatus, the LES loses the support that it needs from the diaphragm to stay closed. This raises the risk for symptoms of heartburn and gastroesophageal reflux disease.

    ByHealthwise Staff
    Primary Medical ReviewerAdam Husney, MD - Family Medicine
    Specialist Medical ReviewerPeter J. Kahrilas, MD - Gastroenterology

    Current as ofNovember 14, 2014

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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