Anti-Reflux Surgery for GERD: Fundoplication, LINX & Hiatal Hernia Repair

Anti-reflux surgery refers to a family of operations that mechanically restore the body's natural barrier against reflux at the gastroesophageal junction, offering durable symptom control and freedom from daily acid-suppression medication for appropriately selected patients with gastroesophageal reflux disease (GERD) (Fass, New England Journal of Medicine, 2022). Rather than a single procedure, it is a tailored decision among several proven options, chosen to match each patient's anatomy and esophageal function (Yadlapati et al., American Gastroenterological Association, 2022).

The major surgical options are:

• Laparoscopic fundoplication — the most commonly performed antireflux operation worldwide, in which the upper stomach (fundus) is wrapped around the lower esophagus to reinforce the valve. The wrap can be complete (Nissen, 360°) or partial (Toupet, 270° posterior; Dor, 180–200° anterior), with the choice guided largely by esophageal motility (Thrumurthy et al., JAMA, 2026; Yadlapati et al., American Gastroenterological Association, 2022).

• LINX magnetic sphincter augmentation (MSA) — a ring of magnetic titanium beads placed around the lower esophageal sphincter that augments the valve while sparing the native stomach anatomy and preserving the ability to belch and vomit (Maret-Ouda et al., JAMA, 2020).

• Hiatal / paraesophageal hernia repair — almost always performed alongside fundoplication or LINX, because most patients with significant reflux have a hiatal hernia that must be fixed for durable results (Fass, New England Journal of Medicine, 2022).

• Roux-en-Y gastric bypass — the preferred antireflux operation in obese patients, and a salvage option in selected non-obese patients (Yadlapati et al., American Gastroenterological Association, 2022).

Across randomized trials, antireflux surgery achieves patient satisfaction above 90% and relieves GERD symptoms in up to 92% of patients at 10-year follow-up, though a minority experience dysphagia, gas-bloat, or symptom recurrence over time (Thrumurthy et al., JAMA, 2026). The single most important determinant of a good outcome — beyond surgeon experience — is rigorous patient selection through a complete preoperative workup that confirms pathologic reflux and excludes mimics such as achalasia (Katz et al., American College of Gastroenterology, 2022; Salvador et al., Annals of Surgery, 2025).

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Reflux occurs when the antireflux barrier at the gastroesophageal junction — the lower esophageal sphincter (LES), reinforced by the diaphragm and the acute angle of His — fails, often because a hiatal hernia has displaced and weakened it. Every antireflux operation rebuilds this barrier, differing only in how (Fass, New England Journal of Medicine, 2022):

• Restoring anatomy: Any hiatal hernia is reduced, the esophagus is returned to its normal position in the abdomen, and the widened diaphragmatic opening (hiatus) is tightened with sutures (crural repair) — a step common to essentially all antireflux procedures.

• Augmenting the valve: A fundoplication wraps the stomach around the esophagus to raise LES pressure and recreate a one-way valve, while LINX adds a calibrated magnetic resistance around the sphincter to achieve the same goal without altering the stomach (Thrumurthy et al., JAMA, 2026; Maret-Ouda et al., JAMA, 2020).

• Tailoring to physiology: The degree of augmentation is matched to esophageal function — a complete wrap for maximal reflux control in patients with normal motility, a partial wrap or LINX when preserving swallowing and venting is a priority (Yadlapati et al., American Gastroenterological Association, 2022).

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• Durable, long-term reflux control — up to 92% symptom relief and >90% patient satisfaction at 10 years in randomized data (Thrumurthy et al., JAMA, 2026).

• Freedom from daily PPIs for the large majority of patients, addressing the inconvenience and concerns of lifelong medication (Katz et al., American College of Gastroenterology, 2022).

• Superior control of regurgitation compared with continued medical therapy — a randomized trial showed a successful outcome in 67% of surgical patients versus 28% with medication for refractory heartburn (Fass, New England Journal of Medicine, 2022).

• A tailored menu of options — complete wrap, partial wrap, magnetic device, or (in obesity) gastric bypass — so the operation can be matched to anatomy, motility, and patient priorities (Yadlapati et al., American Gastroenterological Association, 2022).

• Simultaneous hiatal hernia repair, correcting the underlying anatomic defect that drives reflux (Fass, New England Journal of Medicine, 2022).

• Minimally invasive approach — performed through small laparoscopic or robotic incisions, which keeps the hospital stay short and the recovery quick.

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Anti-reflux surgery is appropriate for patients with objectively confirmed GERD who meet established criteria (Salvador et al., Annals of Surgery, 2025; Katz et al., American College of Gastroenterology, 2022):

• Objective evidence of pathologic reflux — abnormal ambulatory pH/impedance monitoring, erosive esophagitis (LA grade B or higher), or long-segment Barrett's esophagus.

• Patients who respond to PPIs but wish to stop them, or who cannot tolerate or prefer not to take lifelong medication.

• Severe reflux esophagitis (LA grade C or D), large hiatal hernia, or persistent troublesome symptoms — these patients benefit most from surgery (Katz et al., American College of Gastroenterology, 2022).

• Regurgitation-predominant, PPI-refractory GERD with objectively documented reflux and a positive symptom-reflux association — a group in which surgery and MSA clearly outperform continued medical therapy (Katz et al., American College of Gastroenterology, 2022).

The best candidates respond at least partially to PPIs, have objective reflux on endoscopy and/or a positive symptom association probability, and have a hiatal hernia (Salvador et al., Annals of Surgery, 2025). Relative contraindications include prior upper abdominal surgery, BMI over 35 (where gastric bypass may be preferred), esophageal dysmotility, normal esophageal pH, and atypical symptoms unresponsive to PPIs; absolute contraindications include esophageal outlet obstruction such as achalasia, inability to tolerate general anesthesia, and uncorrectable coagulopathy (Thrumurthy et al., JAMA, 2026). Candidacy for every invasive antireflux procedure requires confirmatory evidence of pathologic GERD, exclusion of achalasia, and assessment of esophageal peristaltic function (Yadlapati et al., American Gastroenterological Association, 2022).

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Anti-reflux surgery is performed under general anesthesia, almost always laparoscopically or robotically, through several small incisions. The specific augmentation step depends on the chosen operation (Thrumurthy et al., JAMA, 2026):

1. Access and exposure: The surgeon works through a few small (5–12 mm) incisions and retracts the liver to bring the esophageal hiatus into view.
2. Mobilization: The lower esophagus and gastric fundus are mobilized, dividing short gastric vessels as needed and preserving the vagus nerves.
3. Hiatal hernia repair: The hernia is reduced, adequate intra-abdominal esophageal length is achieved, and the diaphragmatic crura are approximated with sutures.
4. Augmentation — tailored to the patient:
   • Nissen: a complete 360° wrap for maximal reflux control (normal motility).
   • Toupet: a 270° posterior partial wrap favored with impaired motility.
   • Dor: a 180–200° anterior partial wrap, especially after Heller myotomy.
   • LINX: a magnetic bead ring placed around the LES, sized intraoperatively, sparing the stomach.
5. Confirmation and closure: Correct positioning is confirmed (intraoperative endoscopy for LINX), instruments are removed, and the small incisions are closed. Most operations take about one to two hours (LINX is typically shorter).

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Anti-reflux surgery is safe and well-tolerated, but as with any operation there are risks (Thrumurthy et al., JAMA, 2026):

• Dysphagia (difficulty swallowing) — common and usually temporary from early swelling; some dysphagia to solids persists long-term in a minority, more often after a complete wrap than after a partial wrap or LINX (Thrumurthy et al., JAMA, 2026; Fadel et al., International Journal of Surgery, 2024).

• Gas-bloat syndrome and increased flatulence — reported in up to 46% at 10 years after fundoplication, and significantly less after LINX (Thrumurthy et al., JAMA, 2026; Maret-Ouda et al., JAMA, 2020).

• Symptom recurrence — up to 20% within 10 years, with up to 7% undergoing complex revision surgery; more than 25% resume some PPI use in long-term follow-up (Thrumurthy et al., JAMA, 2026; Fass, New England Journal of Medicine, 2022).

• LINX-specific issues — a modestly higher rate of dysphagia than fundoplication, rare device erosion (~0.3% at 4 years), device removal in a small percentage, and an MRI restriction to scanners of 1.5 Tesla or lower (Fadel et al., International Journal of Surgery, 2024; Katz et al., American College of Gastroenterology, 2022).

• Serious perioperative adverse events — in less than 1% of cases, including wound infection, bleeding, chronic pain, and venous thromboembolism (Thrumurthy et al., JAMA, 2026).

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Most patients go home within one to two days (often same-day for LINX). Recovery follows a predictable course:

• First 1–2 weeks: A staged diet — clear liquids advancing to full liquids and then soft foods — protects the healing repair and accommodates swelling (LINX patients are often advanced to a regular diet sooner and encouraged to swallow frequently).

• Swallowing: Mild difficulty swallowing is common early and usually improves as swelling subsides over several weeks to months.

• Activity: Light activity resumes within days; heavy lifting and strenuous core exertion are restricted for several weeks to protect the crural repair.

• Return to work: Many patients return to desk work within one to two weeks.

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The large majority of patients achieve durable relief of heartburn and regurgitation and are able to stop daily acid-suppression medication, with satisfaction above 90% at 10 years (Thrumurthy et al., JAMA, 2026). GERD is a chronic disease, however, and a minority experience symptom recurrence over time — up to 20% within a decade — with some resuming PPIs or requiring revisional surgery (Thrumurthy et al., JAMA, 2026; Fass, New England Journal of Medicine, 2022). Long-term outcomes are optimized by rigorous patient selection, correct matching of the operation to esophageal physiology, and follow-up at an experienced foregut center (Katz et al., American College of Gastroenterology, 2022).

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More in Anti-Reflux and Hiatal Hernia Surgery

Related procedures: Laparoscopic Nissen Fundoplication, Toupet Fundoplication for Acid Reflux & Hiatal Hernia, LINX Magnetic Sphincter Augmentation for Acid Reflux, Transoral Incisionless Fundoplication for Acid Reflux — Scarless GERD Surgery, Stretta Procedure for GERD in Miami, Hiatal and Paraesophageal Hernia Repair. For an overview of all options, see Foregut Surgery.

Anti-reflux surgery can address the following conditions: Acid Reflux, Hiatal Hernia & Paraesophageal Hernia, Paraesophageal Hernia, Recurrent Hiatal Hernia, Failed Fundoplication, PPI-Refractory GERD.

Choosing the right antireflux operation — and performing it well — is where experience matters most. Dr. Nestor de la Cruz-Muñoz, MD, FACS, DABOM, offers the full spectrum of antireflux procedures — Nissen and partial (Toupet, Dor) fundoplication, LINX magnetic sphincter augmentation, hiatal and paraesophageal hernia repair, and, in appropriate patients, Roux-en-Y gastric bypass — and individualizes every decision based on objective esophageal physiologic testing (high-resolution manometry and ambulatory pH-impedance monitoring). This physiology-first, tailored philosophy — reserving the complete wrap for those who need maximal reflux control, favoring a partial wrap or LINX when protecting swallowing and venting is paramount, and matching obese patients to the operation that best serves them — delivers durable reflux relief while minimizing the dysphagia and gas-bloat that drive dissatisfaction after antireflux surgery.

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Anti-reflux operations, from fundoplication to LINX, sit within a broad minimally invasive practice: Dr. de la Cruz-Muñoz has performed over 15,000 minimally invasive procedures across over 25 years, including complex foregut, hernia, gallbladder and abdominal operations as well as bariatric surgery.

That testing happens within his own team. He performs much of his own diagnostic and therapeutic endoscopy and partners with a motility gastroenterologist he worked with for seven years at the University of Miami and helped bring to HCA Florida Mercy Hospital, so manometry, pH testing and the surgical plan are interpreted together. He has also been invited faculty at national meetings on reflux surgery, including the ASMBS sessions on choosing the best operation for GERD and on weight regain and GERD after sleeve gastrectomy.

Patients in South Florida can learn how testing and anti-reflux surgery in Miami are handled at our practice.

The central message of modern antireflux surgery is that there is no universal "best" operation — the right choice is individualized (Yadlapati et al., American Gastroenterological Association, 2022). The guiding principles from current guidelines are:

• Fundoplication is the workhorse for non-obese patients, with the wrap type tailored to motility — a partial wrap (Toupet or Dor) is preferred when there is esophageal hypomotility or impaired peristaltic reserve to reduce the risk of postoperative dysphagia (Yadlapati et al., American Gastroenterological Association, 2022).

• LINX / MSA is recommended as an alternative to laparoscopic fundoplication for patients with regurgitation who fail medical management, and is often favored when preserving belching/venting and minimizing gas-bloat are priorities in patients with normal motility and favorable anatomy (Katz et al., American College of Gastroenterology, 2022).

• TIF (transoral incisionless fundoplication) is an endoscopic option for selected patients with troublesome regurgitation or heartburn who lack severe esophagitis (LA grade C/D) or a hiatal hernia larger than 2 cm (Katz et al., American College of Gastroenterology, 2022).

• Roux-en-Y gastric bypass is the antireflux operation of choice in obese patients, and sleeve gastrectomy can worsen reflux (Yadlapati et al., American Gastroenterological Association, 2022).

Regardless of the operation, surgery is only appropriate after objective confirmation of pathologic GERD and exclusion of achalasia and rumination, which can mimic reflux (Katz et al., American College of Gastroenterology, 2022).

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If reflux recurs or dysphagia is severe and persistent, options are matched to the original operation and to repeat objective testing: endoscopic dilation for a tight wrap or persistent dysphagia; redo fundoplication (including converting a partial to a complete wrap or revising a disrupted wrap); LINX placement or, for an eroded or problematic device, LINX removal with conversion to fundoplication; and, in obese patients, conversion to Roux-en-Y gastric bypass as a salvage antireflux strategy (Katz et al., American College of Gastroenterology, 2022; Yadlapati et al., American Gastroenterological Association, 2022). Up to 7% of patients undergo complex revision within 10 years, and these cases are best managed at an experienced foregut center (Thrumurthy et al., JAMA, 2026).

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Anti-reflux surgery is generally covered when medical necessity is documented. Typical requirements include objective confirmation of GERD (abnormal pH study, erosive esophagitis, or Barrett's esophagus), a trial of medical therapy, and preoperative high-resolution manometry to exclude a motility disorder and guide the choice of operation (Katz et al., American College of Gastroenterology, 2022; Salvador et al., Annals of Surgery, 2025). Documentation of hiatal hernia and reflux-related complications supports authorization.

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A complete objective workup is the foundation of a successful outcome (Salvador et al., Annals of Surgery, 2025; Elshafei et al., Current Gastroenterology Reports, 2026):

• Upper endoscopy to assess esophagitis, hiatal hernia, and Barrett's esophagus, with biopsies as indicated.

• Ambulatory pH or pH-impedance monitoring (off PPI therapy unless objective reflux is already documented) to confirm pathologic acid exposure and symptom-reflux association.

• High-resolution esophageal manometry to exclude achalasia and absent contractility and to assess peristaltic function, guiding wrap selection.

• Barium esophagram to characterize anatomy and hiatal hernia; selected patients may need gastric emptying assessment.

• A negative cardiac evaluation when chest pain is present, plus medication review and dietary counseling for the staged postoperative diet.

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• Diet: Advance through a staged diet — clear liquids, full liquids, soft foods, then regular diet over several weeks — eating small, slow, well-chewed meals to protect the repair (LINX patients are generally advanced sooner and encouraged to eat and swallow regularly).

• Activity: Start walking soon after surgery to lower the risk of blood clots, and hold off on heavy lifting or hard core exertion for several weeks so the crural repair can heal.

• Follow-up: You will be seen at planned visits to check swallowing and reflux control; tell the team early about any persistent difficulty swallowing so it can be treated promptly.

For reflux patients from outside the U.S., plan about four to five days in Miami for LINX, and about 7 to 9 days after a fundoplication or hiatal hernia repair. Complete reflux testing at home if possible, and the results will be reviewed virtually to confirm the best operation before you travel.