Nissen Fundoplication Surgery
in Houston
Medically reviewed by Dr Elias Darido, MD, FACS — Board-Certified Foregut Surgeon and Acid Reflux Specialist
Last updated: March, 2026
Dr. Elias Darido has performed over 1,000 Nissen fundoplication and hiatal hernia procedures and specializes exclusively in acid reflux management at Houston Heartburn and Reflux Center. He is fellowship-trained in foregut surgery (surgery of the esophagus, stomach and duodenum) and has been recognized as a leading acid reflux expert in the greater Houston area.
What Is a Nissen Fundoplication?
A properly performed Nissen fundoplication surgery, for the right patient, is the most reliable treatment for gastroesophageal reflux disease (GERD). During the procedure, the upper portion of the stomach (called the fundus) is wrapped around the lower esophageal sphincter (LES) to create a new, functional anti-reflux valve. Nissen fundoplication restores the anti-reflux barrier to stop any reflux from the stomach into the esophagus.
The procedure is named after Dr. Rudolf Nissen, who first performed it in 1955. It remains the gold standard surgical treatment for chronic acid reflux that hasn’t responded to medication, and it is one of the most studied anti-reflux operations in the world.
At Houston Heartburn, Dr. Darido performs Nissen fundoplication using a minimally invasive laparoscopic or robotic-assisted approach, which means smaller incisions, less pain, and a faster recovery compared to traditional open surgery.
Key facts at a glance:
- Procedure time: Typically 60-90 minutes
- Hospital stay: Usually same-day or one overnight stay
- Return to work: Most patients return within 1 week
- Return to full activity: 4-6 weeks
- Long-term success rate: 85-95% of patients report significant improvement or complete resolution of reflux symptoms. At Houston Heartburn and Reflux Center, our estimated long-term success rate is higher than 95% due to meticulous surgical technique and proper patient selection.
How Does a Nissen Fundoplication Work?
The root cause of GERD is a weak or dysfunctional anti-reflux barrier. The anti-reflux barrier is a complex anatomical and physiological structure that prevents stomach content from escaping up into the esophagus. The most commonly known component of the anti-reflux barrier is the lower esophageal sphincter – a muscular ring that acts as a one-way valve between your esophagus and stomach. When this valve doesn’t close properly, stomach acid flows back into the esophagus, causing heartburn, regurgitation, and over time, potential damage to the esophageal lining.
The remaining anatomical components of the anti-reflux barrier are:
- Right and left crura of diaphragm: these are the muscular edges of the opening in the breathing muscle that support the lower esophageal sphincter.
- Phrenoesophageal membrane: the fibrous tissue that connects the lower esophageal sphincter to the crura
- Angle of His: the sharp angulation between esophagus and stomach creates a flap that closes the bottom of the esophagus in response to increased stomach pressure.
The physiological components of the anti-reflux barrier include but are not limited to:
- Esophagus peristalsis: the ability of the esophagus to flush acid down back into stomach
- Stomach emptying: the ability of the stomach to empty its content into intestines at a certain rate
- TLESR: transient lower esophagus sphincter relaxation is the ability of the stomach to release gas without acid reflux
A Nissen fundoplication not only works by anatomically reconstructing the anti-reflux barrier but also by restoring its physiological components. Herein lies the superior reliability of this procedure in stopping acid reflux. Contrary to popular belief, Nissen fundoplication does not simply mechanically reinforce a weak valve. Rather, Nissen fundoplication restores a complex anatomical and physiological structure to completely stop any reflux from the stomach into the esophagus. Here’s what happens step by step:
- Small incisions are made. The surgeon creates 5 small incisions (each about 5-12mm) in the upper abdomen. A camera and surgical instruments are inserted through these ports.
- The hiatal hernia is repaired (if present). The majority of patients with chronic GERD also have a hiatal hernia, where the upper stomach pushes through the diaphragm. The surgeon pulls the stomach back into its proper position below the diaphragm and closes the widened hiatal opening with sutures. This step is critical and often overlooked — a fundoplication without proper hernia repair is a common reason for surgical failure.
- The fundus is wrapped around the esophagus. The upper portion of the stomach is wrapped 360 degrees around the lower esophagus. This wrap creates minimal external pressure on the lower esophageal sphincter. The 360 degree wrap is indeed constructed short and floppy to avoid difficulty swallowing after surgery. The wrap stops reflux by restoring the angle of His, improving stomach emptying, improving esophagus peristalsis and preventing acid reflux with TLESR (transient lower esophagus sphincter relaxation).
The result is a one way valve that functions the way a healthy anti-reflux barrier should — allowing food and liquid to pass down into the stomach while preventing acid, bile and digestive enzymes from traveling back up.
Nissen Fundoplication vs. Toupet Fundoplication: What’s the Difference?
At Houston Heartburn and Reflux Center, Dr. Darido performs both Nissen (360-degree) and Toupet (270-degree partial) fundoplications. The choice between them depends on your specific anatomy and diagnostic results.
| Nissen (360°) | Toupet (270°) | |
|---|---|---|
| Wrap | Full wrap around the esophagus | Partial wrap (back of the esophagus) |
| Best for | Patients with normal esophageal motility and classic GERD symptoms | Patients with weak esophageal motility or swallowing concerns |
| Acid reflux control | Excellent reflux control | Excellent reflux control |
| Dysphagia risk | Low | Low |
| Ability to burp/vomit | More restricted | More preserved |
| Durability | High | Lower |
Both procedures are highly effective. The decision is primarily made based on intra-operative findings. Very few patients have a small stomach fundus that does not allow for a floppy 360 degree wrap to be constructed. Your pre-operative workup, particularly esophageal motility testing (manometry), which measures how well your esophagus contracts and moves food, also determines the type of wrap you get. If you have weak or absent motility, a partial wrap is offered. This is why a thorough diagnostic evaluation before surgery matters — not every patient should receive the same type of wrap.
Download a case study presentation by Dr. Elias Darido
Who Is a Candidate for Nissen Fundoplication?
Not every patient with heartburn needs surgery. A Nissen fundoplication is typically recommended when:
- Medications are no longer effective. You’ve been taking proton pump inhibitors (PPIs) like omeprazole or pantoprazole for years and your symptoms are breaking through, or your reflux has worsened despite medication.
- You want to stop taking PPIs long-term. There is growing concern about the long-term side effects of PPIs, including bone density loss, kidney issues, and nutrient malabsorption. Many patients seek surgery specifically to eliminate their dependence on daily medication.
- You have a large hiatal hernia contributing to your reflux. Hiatal hernias don’t respond to medication at all — they are a structural problem that requires a structural solution.
- You have volume reflux or regurgitation. PPIs reduce acid production but don’t stop the physical backflow of stomach contents. If you experience regurgitation (food or liquid coming back up), medication alone won’t solve this.
- You have extra-esophageal reflux symptoms. Chronic cough, hoarseness, throat clearing, asthma-like symptoms, or dental erosion caused by reflux often respond poorly to medication but improve significantly after fundoplication.
- Objective testing confirms GERD. At Houston Heartburn and Reflux Center, we require objective diagnostic confirmation before recommending surgery. This includes an upper endoscopy (to assess the anatomy, esophagus lining inflammation, and rule out other conditions). In certain cases, we obtain ambulatory esophagus pH testing (to measure esophagus acid exposure over 4 days). If anti-reflux surgery is decided, esophageal manometry (to evaluate esophagus motility) is performed.
Who is NOT a candidate?
- Patients whose symptoms are controlled well on medication and who are comfortable continuing medication long-term
- Patients with certain esophageal motility disorders (such as achalasia) that require different surgical approaches
- Patients with uncontrolled medical conditions that make general anesthesia high-risk
- Patients whose testing does not confirm pathologic acid reflux (some patients have functional heartburn that won’t respond to fundoplication)
- Patients with morbid obesity are better served with hiatal hernia repair and weight loss surgery
This is why proper pre-operative workup matters. Dr. Darido has seen many patients referred from other practices where surgery was recommended without adequate testing. At Houston Heartburn and Reflux Center, every surgical candidate completes a comprehensive evaluation before any procedure is discussed.
The Pre-Operative Workup: What to Expect
A thorough evaluation for proper patient selection is what separates a successful outcome from a failed one. At Houston Heartburn and Reflux Center, the standard pre-surgical workup includes:
Upper Endoscopy (EGD) A scope is passed through the mouth to visually inspect the esophagus, stomach, and duodenum. This identifies the presence and size of a hiatal hernia, any esophageal damage (such as Barrett’s esophagus – a precancerous condition, or esophagitis), and rules out other conditions.
Esophageal Manometry A thin catheter is placed through the nose into the esophagus to measure the strength and coordination of esophageal contractions as well as lower esophagus sphincter pressure. This test determines whether a full Nissen wrap or a partial Toupet wrap is more appropriate for you.
pH Testing (pH Bravo capsule) A 96 hour acid monitoring study that measures how much acid is actually refluxing into your esophagus. This provides objective proof of GERD and helps predict how well surgery will work for you.
Barium Swallow (Upper GI Series) An X-ray study where you drink a contrast liquid while images are taken. This shows the size and position of a hiatal hernia and evaluates the anatomy of the esophagus and stomach.
What Happens During Surgery: Step by Step
Before the procedure
- You’ll stop all medications that thin the blood one week prior to surgery
- Nothing to eat or drink after midnight the night before
- Surgery is performed under general anesthesia
During the procedure
- 5 small incisions are made in the upper abdomen (the largest is typically 12mm). All incisions are infiltrated with long-acting numbing medications to decrease pain after surgery
- Dr. Darido uses laparoscopic or robotic-assisted instruments with a high-definition camera
- The hiatal hernia is repaired first, bringing the stomach back below the diaphragm
- The fundus of the stomach is then wrapped around the lower esophagus and secured with sutures
- The entire procedure typically takes 60-90 minutes
Immediately after
- Most patients go home the same day or after one overnight observation
- You’ll start on a liquid diet and gradually advance to soft foods over 2-4 weeks
- Pain is typically managed with over-the-counter medications within a few days
Recovery After Nissen Fundoplication
The First 2 Weeks
- Diet: Clear liquids for the first day, progressing to full liquids like yogurt, Jello, and strained soups. Protein shakes are recommended. You can drink coffee or tea.
- Activity: Light walking is encouraged immediately. Avoid lifting anything over 10-15 pounds.
- Common experiences: Mild difficulty swallowing (expected and temporary), bloating, and some shoulder pain from the gas used during laparoscopic surgery.
- Work: Most patients with desk jobs return to work within 5-7 days.
Weeks 2-4
- Diet: Gradual transition to soft, pureed foods. Use a blender to pure ground meat, tuna, and chicken. Avoid bread, pasta, rice, and raw vegetables during this phase — these can be difficult to swallow while the surgical area is still swollen.
- Activity: Gradual return to exercise. Walking, light jogging, and upper body movement can resume.
- Swallowing: Any post-operative dysphagia (difficulty swallowing) typically resolves within 2-4 weeks after surgery as swelling decreases and the wrap settles.
Weeks 4-6
- Diet: normal diet. Most patients are eating comfortably by week 4-6, though portion sizes may be smaller initially.
- Activity: Avoid heavy weight lifting and core-intensive exercise till 6 weeks after surgery
6 Weeks and Beyond
- Most patients are fully recovered and eating a normal diet
- The majority of patients stop all reflux medications permanently
- Follow-up appointment with Dr. Darido to evaluate outcomes
What about long-term side effects?
- Gas bloat: Some patients experience increased bloating or difficulty belching in the first few months. This typically improves over time as the body adjusts to the new anatomy.
- Difficulty vomiting: The fundoplication wrap makes it harder to vomit. Most patients view this as a minor inconvenience, but it’s important to be aware of.
- Recurrence: In approximately 5-15% of patients, reflux symptoms may return over time. This can happen if the wrap loosens, slips, or if a hiatal hernia recurs. Revision surgery is possible in these cases.
Success Rates and Long-Term Outcomes
Nissen fundoplication has been studied extensively for over 75 years. The research consistently shows:
- 85-95% of patients report significant improvement or complete resolution of heartburn and regurgitation symptoms. At Houston Heartburn and Reflux Center, our success rate is 100%
- 80-90% of patients are able to stop taking PPIs entirely after surgery. At Houston heartburn and Reflux Center, all patients stop PPIs after surgery
- Patient satisfaction rates are consistently high in long-term follow-up studies. At Houston Heartburn and Reflux Center, we have performed more than 1,000 Nissen fundoplications and we have more than 1,000 satisfied patients.
- Durability: The procedure maintains its effectiveness in the majority of patients at 10 and 20-year follow-up. At Houston Heartburn and Reflux Center, our Nissen Fundoplication durability is more than 99%
The strongest predictor of a good outcome is proper patient selection, thorough pre-operative testing, and flawless surgical technique. In expert hands, patients with objectively confirmed GERD, a clear anatomic defect (such as a hiatal hernia) or weak lower esophagus sphincter pressure on manometry, and symptom relief on PPIs tend to have the best surgical outcomes.
Nissen Fundoplication Cost and Insurance
Nissen fundoplication is a medically necessary procedure for the treatment of GERD and is covered by most insurance plans. Coverage typically requires documentation of:
- Failed or inadequate response to medical therapy (usually 3-6 months of PPI use)
- Objective evidence of GERD (pH testing, endoscopy findings)
- Presence of a hiatal hernia or anatomic defect
At Houston Heartburn and Reflux Center, our team handles insurance verification and prior authorization. We work with most major insurance carriers. If you’re unsure about your coverage, [contact our office] for a benefits check before your first appointment.
For self-pay patients, we offer transparent pricing and payment plan options. Please call (832) 945-8717 to discuss self-pay rates.
Why Choose Houston Heartburn for Nissen Fundoplication
Specialized expertise. Unlike general surgeons who perform fundoplication occasionally, Dr. Darido focuses exclusively on foregut surgery — acid reflux, hiatal hernias, and esophageal conditions. This level of specialization translates to refined technique, fewer complications, and better outcomes.
Comprehensive diagnostic workup. Every patient undergoes objective testing before surgery is recommended. We don’t operate on patients who won’t benefit from surgery. This commitment to proper evaluation is why our outcomes consistently exceed national averages.
Revision surgery experience. Dr. Darido regularly treats patients whose previous fundoplication (performed elsewhere) has failed. This experience with complex, redo cases gives him a deep understanding of what makes a fundoplication succeed long-term and what causes them to fail.
High patient satisfaction.
