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    The content on this page is not current guidance and is only for the purposes of the consultation process.

    Validity and generalisability of the studies

    • Most of the evidence relates to the Esophyx device, with studies utilising the MUSE and GORDx devices also included in the key evidence.

    • Follow up for studies ranged between 12 months and 10 years (but with high loss to follow up for studies with longer follow up periods).

    • Some of the included studies have used previous versions of a device which are no longer available for use.