Doctors successfully removed a magnetic reflux device that had eroded into a patient’s esophagus using an endoscope and a specialized tool called a mechanical lithotriptor, with the patient recovering fully within 24 hours. Device erosion occurs in less than 1% of magnetic sphincter augmentation implants, but this case demonstrates that endoscopic removal is a safe, less-invasive alternative to open surgery for this rare complication.
A rare complication can occur when a magnetic device used to treat severe acid reflux erodes through the esophagus wall. According to Gram Research analysis, doctors successfully removed one of these devices using a specialized tool called a mechanical lithotriptor—essentially a tiny stone-breaking device adapted for this purpose. The patient recovered well with no serious complications. This case study shows that endoscopic removal (using a camera down the throat) is a safe and effective option for this uncommon but serious problem, giving doctors a new tool to help patients when this device fails.
Key Statistics
A 2026 case report published in VideoGIE documented successful endoscopic removal of an eroded magnetic reflux device using a mechanical lithotriptor, with the patient discharged within 24 hours and no serious complications.
Device erosion from magnetic sphincter augmentation implants occurs in approximately 0.3% of cases, making it a rare but serious complication requiring specialized removal techniques.
The mechanical lithotriptor technique successfully severed the metal connections between device beads and allowed complete extraction of all device fragments under fluoroscopic guidance in a single endoscopic procedure.
The Quick Take
- What they studied: How to safely remove a magnetic reflux device that had eroded (worn through) the esophagus wall using an endoscope and a specialized breaking tool
- Who participated: One patient with a magnetic sphincter augmentation device that had eroded into the esophagus at the junction with the stomach
- Key finding: Doctors successfully removed the eroded device using a mechanical lithotriptor (a tool that breaks things apart) guided by X-ray, with the patient recovering well and going home the next day
- What it means for you: If you have a magnetic reflux device and it causes problems, doctors now have a proven endoscopic technique to remove it safely without major surgery. However, this remains a rare complication affecting less than 1% of patients with these devices
The Research Details
This is a case report describing a single patient’s experience with device removal. The doctors used an endoscope (a thin camera tube) to look inside the patient’s esophagus and stomach. They threaded a guidewire (a thin metal wire) around the eroded device beads, then used a mechanical lithotriptor—a tool normally used to break kidney stones—to sever the metal connections holding the device together. X-ray imaging guided the entire procedure to ensure accuracy.
The procedure involved several steps: first visualizing the device parts, then carefully positioning a wire loop around them, then using the lithotriptor to break the metal links, and finally removing the separated pieces with a snare (a wire loop that grabs tissue). This innovative approach adapted a tool from a different medical specialty to solve a complex problem.
Most eroded devices require open surgery to remove, which carries greater risks and longer recovery times. This endoscopic approach is less invasive, meaning smaller incisions and faster healing. By showing that this technique works, doctors now have an alternative option that may be safer for patients facing this rare complication.
This is a single case report, which is the lowest level of research evidence. It describes what happened with one patient, not a large group. However, it documents a novel technique with detailed procedural information and successful outcomes. The case is well-documented with imaging confirmation of complete device removal and no serious complications. While one case cannot prove the technique works for everyone, it provides valuable information for other doctors facing similar situations.
What the Results Show
The doctors successfully removed all parts of the eroded magnetic device using the mechanical lithotriptor technique. The procedure took place during an endoscopy (camera examination of the esophagus and stomach). Two beads of the device were visible at the junction between the esophagus and stomach. By threading a guidewire around these beads and using the lithotriptor to break the metal connections, the doctors were able to separate the device into removable pieces.
All device fragments were successfully extracted using a snare tool. X-ray imaging confirmed complete removal with no device pieces left behind. The patient experienced some chest pain after the procedure, but it resolved on its own without any signs of perforation (a hole in the esophagus). She was observed overnight and discharged the next day on a gradual diet plan.
The patient had no recurrence of her original acid reflux symptoms (GERD) or difficulty swallowing (dysphagia) after device removal. She recovered well enough to go home within 24 hours. No serious complications like perforation or infection were documented. The patient tolerated the procedure well and had a smooth recovery.
Device erosion is a known but rare complication of magnetic sphincter augmentation devices, occurring in about 0.3% of implanted devices. Most previous cases required open surgery for removal. This case report is significant because it demonstrates that endoscopic removal is possible, offering a less invasive alternative to traditional surgical approaches. The use of a mechanical lithotriptor adapted from urology (kidney stone treatment) represents an innovative application of existing technology to a new problem.
This is a single case report involving one patient, so we cannot know if this technique will work equally well for all patients with eroded devices. Different patients may have different anatomy or device positions that could affect the procedure’s success. The long-term outcomes beyond the immediate post-procedure period are not documented. We don’t know if this approach would work if the device had eroded in different locations or if multiple beads were affected. More cases would be needed to fully understand how often this technique succeeds and what complications might occur.
The Bottom Line
For patients with eroded magnetic reflux devices: Endoscopic removal using a mechanical lithotriptor appears to be a safe and effective option (moderate confidence based on one successful case). This approach should be considered before pursuing open surgery, as it is less invasive with faster recovery. Patients should discuss this technique with their gastroenterologist if they develop complications from their device.
This information is most relevant to: patients with magnetic sphincter augmentation devices who develop erosion complications; gastroenterologists and surgeons treating GERD; patients considering magnetic reflux devices who want to know about potential complications and treatment options. This is less relevant to patients with mild reflux or those using other treatment methods.
In this case, the patient recovered within 24 hours and was discharged the next day. However, long-term outcomes beyond the immediate post-procedure period are not documented in this case report. Full dietary recovery may take several weeks.
Frequently Asked Questions
What is a magnetic sphincter augmentation device and why might it erode?
A magnetic sphincter augmentation device is a small implant placed around the esophagus to treat severe acid reflux by strengthening the muscle that prevents stomach acid from backing up. Erosion occurs when the device gradually wears through the esophageal tissue, a rare complication affecting less than 1% of patients.
How is an eroded reflux device removed without surgery?
Doctors use an endoscope (camera tube) to see the device, thread a guidewire around it, then use a mechanical lithotriptor—a tool that breaks things apart—to sever the metal connections. The separated pieces are then removed with a snare tool, all guided by X-ray imaging.
What are the risks of endoscopic device removal?
Potential risks include chest pain, perforation (hole in the esophagus), and infection, though the documented case showed only mild, self-resolving chest pain. Endoscopic removal is generally less risky than open surgery, but complications are possible.
How long does recovery take after endoscopic device removal?
In the documented case, the patient was discharged within 24 hours and tolerated a gradual diet plan. Full recovery likely takes several weeks, though long-term outcomes beyond immediate post-procedure care aren’t detailed in this single case.
Should I be worried about my magnetic reflux device eroding?
Erosion is rare, occurring in fewer than 1 in 300 patients. Monitor for new symptoms like chest pain, difficulty swallowing, or worsening reflux, and report them to your doctor promptly. Regular check-ups help catch problems early.
Want to Apply This Research?
- If you have a magnetic reflux device, track any new or worsening symptoms daily: chest pain, difficulty swallowing, persistent heartburn, or nausea. Note the severity (mild, moderate, severe) and whether symptoms improve or worsen over time.
- Set monthly reminders to check in with your gastroenterologist if you have a magnetic reflux device. Report any new symptoms immediately rather than waiting for a scheduled appointment. Keep a symptom log in the app to share with your doctor.
- Create a long-term tracking system that monitors: frequency of reflux symptoms, any new swallowing difficulties, chest discomfort, and device-related concerns. Flag any sudden changes to alert you to contact your healthcare provider promptly.
This case report describes a single patient’s experience and should not be considered definitive proof that this technique works for all patients with eroded magnetic reflux devices. Device erosion is a serious complication requiring immediate medical attention. If you have a magnetic sphincter augmentation device and experience new symptoms such as chest pain, difficulty swallowing, or persistent heartburn, contact your gastroenterologist or surgeon immediately. Treatment decisions should be made in consultation with your healthcare provider based on your individual circumstances. This information is educational and does not replace professional medical advice.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.
