Fundoplication is a surgery that treats chronic acid reflux by wrapping part of the stomach around the lower end of the esophagus, reinforcing the natural valve that keeps stomach acid from flowing upward. It’s the most common surgical treatment for gastroesophageal reflux disease (GERD), and about 80% of patients report their symptoms are almost completely resolved or greatly improved at the 10-year mark.
How the Surgery Works
The lower esophageal sphincter is a ring of muscle where the esophagus meets the stomach. In people with chronic reflux, this sphincter doesn’t close tightly enough, allowing acid to wash back into the esophagus. Fundoplication fixes this by taking the upper portion of the stomach (called the fundus) and wrapping it around the base of the esophagus. This creates external pressure that helps the sphincter stay shut when it should, while still allowing food and liquid to pass through when you swallow.
If a hiatal hernia is present, where part of the stomach pushes up through the diaphragm, the surgeon repairs that at the same time. Most fundoplications are performed laparoscopically, meaning the surgeon works through several small incisions using a camera and thin instruments rather than opening the chest or abdomen with a large cut.
Three Types of Wraps
Not all fundoplications are the same. The key difference is how far the stomach wraps around the esophagus.
- Nissen (360-degree wrap): The stomach wraps completely around the esophagus. This is the most commonly performed version and provides the strongest anti-reflux barrier.
- Toupet (270-degree wrap): A partial wrap that covers the back of the esophagus. It leaves a gap in the front, which makes post-surgical swallowing difficulties less likely.
- Dor (180-degree wrap): An anterior (front-facing) partial wrap, often used after other esophageal surgeries where the front of the esophagus needs reinforcement.
A meta-analysis of 13 randomized controlled trials covering over 2,000 patients found that all three types produce similar long-term reflux control. The Toupet wrap, however, had significantly lower odds of causing post-surgical swallowing difficulty compared to the Nissen. For this reason, surgeons sometimes choose a partial wrap for patients who already have some degree of impaired esophageal motility.
Who Is a Candidate
Fundoplication isn’t a first-line treatment. It’s typically considered when acid-suppressing medications haven’t worked well enough, when you can’t tolerate those medications due to side effects, or when you prefer not to take daily medication for decades. Younger patients in particular sometimes choose surgery to avoid the long-term cost and potential effects of lifelong medication use.
Other situations that may point toward surgery include complications of long-standing reflux like Barrett’s esophagus or narrowing of the esophagus from scarring. Reflux that causes problems outside the esophagus, such as chronic cough, hoarseness, asthma flares, or recurrent aspiration pneumonia, can also be an indication. In children, fundoplication may be considered when reflux causes life-threatening episodes like apnea, failure to thrive, or lung problems that don’t respond to medical treatment.
Testing Before Surgery
Before scheduling the procedure, your surgical team will want objective confirmation that acid reflux is the real problem. This typically involves an upper endoscopy (a camera passed down the throat to examine the esophagus and stomach) and sometimes an imaging study to evaluate swallowing function. If your symptoms are atypical, a 24-hour pH monitoring test may be used to measure exactly how much acid is reaching your esophagus throughout the day. Esophageal manometry, a test that measures the strength and coordination of swallowing muscles, is often reserved for patients who already have difficulty swallowing or show abnormal motility on imaging.
Laparoscopic vs. Robotic Surgery
Most fundoplications today are performed laparoscopically. Robotic-assisted versions use the same small-incision approach but give the surgeon a console with enhanced visualization and instrument control. In practice, the outcomes are nearly identical. A systematic review of six randomized trials found no significant difference between the two in complication rates, post-surgical swallowing problems, hospital stay, or need for reoperation. The robotic approach does take longer in the operating room and costs more, so most centers default to the standard laparoscopic technique unless there’s a specific reason to use robotic assistance.
Recovery and Diet After Surgery
Hospital stays are typically short, often one to two nights. The more demanding part of recovery is the dietary progression your healing anatomy requires. Your esophagus and stomach need time to heal around the new wrap, and eating the wrong texture too soon can cause pain, nausea, or damage to the repair.
The general timeline looks like this:
- Days 1 to 3: Clear liquids only (broth, water, gelatin).
- Days 4 to 7: Smooth, creamy liquids like protein shakes and strained soups.
- Week 2: Blenderized liquids, where foods are blended until completely smooth.
- Weeks 3 to 4: Pureed foods with the consistency of a thick paste. Nothing with seeds, nuts, or stringy textures like celery.
- Weeks 5 to 6: Medium-soft foods that are moist and easy to chew. Raw fruits and vegetables, anything hard, sticky, or crunchy is still off limits.
After roughly six weeks, most people gradually return to a normal diet, though eating smaller meals and chewing thoroughly often remains important long-term. Some patients find that carbonated drinks and very large meals are permanently less comfortable than they were before surgery.
Common Side Effects
The most talked-about side effect is difficulty swallowing, called dysphagia. Some degree of this is extremely common in the first few weeks as swelling resolves. In a study of 352 patients who had laparoscopic Nissen fundoplication, about 21% reported occasional mild difficulty swallowing solids, and another 6% had somewhat more frequent trouble. Persistent, problematic swallowing difficulty was rare, affecting only 2% of patients.
Gas-bloat syndrome is the other notable side effect, reported by about 13% of patients in the same study. Because the wrap tightens the junction between the esophagus and stomach, some people lose the ability to belch effectively. Gas that would normally escape upward gets trapped in the stomach and intestines, causing bloating, discomfort, and increased flatulence. For most people this is manageable, but for a small number it becomes a daily nuisance. Eating slowly, avoiding gas-producing foods, and skipping straws and carbonated beverages can help.
Vomiting also becomes difficult or impossible after a full Nissen wrap. This is worth knowing in advance, as it affects how your body handles food poisoning, stomach bugs, or anything else that would normally trigger vomiting.
Long-Term Effectiveness
At 10 years of follow-up, about 80% of patients rate their reflux symptoms as almost completely resolved or greatly improved, and 85% say they would choose the surgery again. These numbers come from early experience with the laparoscopic technique, and surgical outcomes have generally improved as the procedure has become more standardized. A small percentage of patients do eventually return to acid-suppressing medications, either because the wrap loosens over time or because reflux recurs for other reasons. Reoperation is possible but uncommon.