The LINX-Band

Dear Patients,

Recently, I once again saw a patient for removal of a LINX device. This provides an opportunity to briefly explain this magnetic anti-reflux system.

The LINX system consists of a chain of small magnetic beads that attract each other and are intended to close the esophagus again after swallowing. This is designed to prevent the reflux of gastric acid.

The underlying principle is similar to that of fundoplication: the esophagus is deliberately constricted to prevent reflux.

However, while fundoplication requires mobilization of the stomach from its attachments, including the division of blood vessels and nerve structures, this is not necessary with the LINX device. The constriction is technically simpler to achieve.

In practice, some patients report that this can work reasonably well—provided the band has not been placed too tightly. In this patient, as demonstrated in this X-ray, the contrast medium does not pass smoothly through the narrowed segment, leading to a backlog within the esophagus and resulting in dysphagia.

What the LINX system cannot do, however, is restore the stability of a disrupted diaphragm. During revision procedures, recurrent defects of the diaphragm are frequently found, creating a risk that the LINX device may migrate into the chest cavity and form adhesions—including to the pericardium.

It should also be noted that older LINX systems may interfere with strong magnetic fields, such as those used in MRI scans. In such cases, the device had to be removed prior to imaging. Newer systems have been partially adapted in this regard.

In my view, the long-term results should be interpreted with caution. The procedure is still offered, not least because it is comparatively simple to perform.

My advice:Do not base your decision solely on seemingly simple technical solutions—also consider your personal sense of what feels right for you.