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The Daily Insight

What is the flap at the bottom of your esophagus called

Author

John Parsons

Updated on April 22, 2026

A small muscular flap called the epiglottis closes to prevent food and liquid from going down the “wrong pipe” — your windpipe (trachea).

What happens if the lower esophageal sphincter malfunctions?

If a person’s LES is weak or damaged, the muscle can lose its ability to close (as with GERD), or it’s ability to open (as with Achalasia). When the LES fails to close, it allows stomach acid to splash up from the stomach into the esophagus, causing severe acid reflux and heartburn.

What are the symptoms of lower esophageal sphincter?

What Are the Symptoms of Hypertensive Lower Esophageal Sphincter? Dysphagia (difficulty swallowing), chest pain, heartburn and regurgitation are the most common symptoms of hypertensive lower esophageal sphincter. The symptoms usually progress slowly with time.

Can the lower esophageal sphincter be fixed?

Surgery may be an option for those people. Surgery focuses on repairing or replacing the valve at the bottom of the esophagus that normally keeps acid from moving backward from the stomach. This valve is called the lower esophageal sphincter (LES).

Can food get stuck in lower esophageal sphincter?

When the lower esophageal muscle (sphincter) doesn’t relax properly to let food enter the stomach, it can cause food to come back up into the throat.

What is the flap between the stomach and esophagus?

The lower esophageal sphincter (or LES) is a muscle that separates the esophagus from the stomach. It acts like a valve that normally stays tightly closed to prevent contents in the stomach from backing up into the esophagus.

How do you fix a lower esophageal sphincter?

Laparoscopic anti-reflux surgery for GERD may involve a procedure to reinforce the lower esophageal sphincter, called Nissen fundoplication. In this procedure, the surgeon wraps the top of the stomach around the lower esophagus after reducing the hiatal hernia, if present.

How painful is Nissen fundoplication?

Laparoscopic Nissen fundoplication is a minimally invasive procedure performed through tiny incisions. Consequently, recovery is fast, and it is associated with very little discomfort.

Is Nissen fundoplication major surgery?

What are the complications of Nissen’s fundoplication surgery? The surgery is relatively safe with morbidity of less than 1%. Like any major surgery, fundoplication also has a risk for complications that are usually treatable or transient.

How long does it take to recover from a Nissen fundoplication?

A laparoscopic Nissen fundoplication may require hospital stay of two days. Most people are able to resume normal activities after two or three weeks. The patient may have to be on a soft food or liquid diet until the esophagus heals, and avoid heavy lifting and strenuous activities.

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Why is a Nissen fundoplication performed?

A Nissen fundoplication is a surgery to treat gastroesophageal reflux disease (GERD). During the procedure, a surgeon creates a sphincter (tightening muscle) at the bottom of the esophagus to prevent acid reflux. Most people notice a significant decrease in acid reflux symptoms after the surgery.

What is hypertonic LES?

Hypertensive lower esophageal sphincter (LES) is an uncommon manometric abnormality found in patients with dysphagia and chest pain, and is sometimes associated with gastroesophageal reflux disease (GERD). Preventing reflux by performing a fundoplication raises concerns about inducing or increasing dysphagia.

What causes the lower esophageal sphincter to open?

Lower Esophageal Sphincter and Diaphragmatic Sphincter Opening. = viscosity. Therefore, the LES and diaphragmatic sphincter opening is one of the important determinants of flow or transit from the esophagus to the stomach. Under normal physiologic conditions the entire LES opening occurs following its relaxation.

How do you push food down your esophagus?

Peristalsis squeezes your esophageal muscles from top to bottom. This pushes food and liquid along. If you could see peristalsis, it would look like a wave passing down your esophagus. To keep food and liquids moving in the right direction, your digestive tract has special muscles along its course called sphincters.

How do you close the esophageal sphincter?

Management and Treatment They may include: Antacids, proton pump inhibitors and histamine receptor (H2) blockers to reduce stomach acid. Endoscopic dilation to open a narrowed esophagus or relax a sphincter muscle. Botulinum toxin (Botox®) injections to temporarily stop esophageal spasms or relax the sphincter muscle.

Is esophageal stricture life threatening?

Most symptomatic strictures require dilation to fix the problem. Many patients need more than one dilation over time to keep the esophagus wide enough for food to pass through. In rare cases, severe and untreated esophageal strictures can cause perforations (small rips), which can be life-threatening.

What is the success rate of Nissen Fundoplication?

Endoscopic evaluation of laparoscopic nissen fundoplication: 89 % success rate 10 years after surgery.

Should I get Nissen fundoplication?

Nissen fundoplication not only relieves symptoms of acid reflux, but it can also help prevent future complications—even for patients whose acid reflux symptoms are mostly well managed by medications. Oftentimes, these patients are unaware of the long-term effects of GERD.

What are the side effects of Nissen Fundoplication?

The most common side effect is difficulty in swallowing. This is common immediately after the operation and gradually improves. The amount of food you consume may be less and you may have to eat more slowly than you did before the operation. Other common side effects are burping, bloating and increased wind (flatus).

What is at the bottom of your throat?

The hypopharynx is the area at the lower part of the throat. The esophagus is the tube that carries food and liquids from the throat to the stomach. The trachea is the tube that carries air between the throat and the lungs. The lymph nodes are bean-shaped organs that help the body fight infections.

What is the difference between achalasia and dysphagia?

In achalasia, dysphagia usually occurs with both solid and liquid food, whereas in esophageal stricture and cancer, the dysphagia typically occurs only with solid food and not liquids, until very late in the progression of the stricture.

Why can't I eat chocolate after Nissen fundoplication?

Eat desserts and sweets at the end of your meal to avoid “dumping syndrome.” This describes the rapid emptying of foods from the stomach to the small intestine. Sweets move more rapidly and dump quickly into the intestines. This can cause symptoms of nausea, weakness, cold sweats, cramps, diarrhea, and dizzy spells.

Can you throw up after Nissen fundoplication?

Many surgeons will tell their patients that after a fundoplication surgery for GERD or hiatal hernia repair that they will never be able to vomit or belch again.

What type of doctor performs a Nissen fundoplication?

A general surgeon performs acid reflux surgery (fundoplication). General surgeons specialize in the surgical care of diseases, injuries and deformities affecting the abdomen, breasts, digestive tract, endocrine system and skin.

What is dumping syndrome after Nissen fundoplication?

Dumping syndrome may occur when a large volume of gastric content is delivered to the duodenum or jejunum, resulting in both gastrointestinal and vasomotor symptoms. Occasionally, dumping syndrome may be a complication in patients that have undergone nissen Fundoplication, especially in adults.

Can you eat normally after Nissen fundoplication?

When will I be able to eat a soft diet? After Nissen fundoplication surgery, your diet will be advanced slowly by your surgeon. Generally, you will be on a clear liquid diet for the first few meals. Then you will advance to the full liquid diet for a meal or two and eventually to a Nissen soft diet.

How much weight do you lose after Nissen fundoplication?

The average reduction of body weight was 3.9 kg. Nineteen patients (9.1%) did not reduce weight and 19 patients (9.1%) showed a slight increase in body weight (average, 2.4 kg). Body mass index (BMI) before and 3 and 12 months after laparoscopic Nissen fundoplication (LNF).

How do you sleep after Nissen?

The doctors do not recommend sleeping on the stomach after the surgery. This position can hurt your spine and can also pressurize the hip area. Try to control your sleeping habit if you are a stomach sleeper. It is best to sleep on your side or back.

Is Nissen fundoplication permanent?

Laparoscopic Nissen fundoplication is one of the most common antireflux procedures. Unlike antireflux medications, laparoscopic Nissen fundoplication offers permanent relief for gastroesophageal reflux disease (GERD).

Is Nissen fundoplication covered by insurance?

Although patients may end up fighting for coverage for other procedures like the TIF or the Linx, the Lap Nissen procedure is generally covered in some capacity by all insurances, and typically fully covered by Medicaid.

Is Nissen fundoplication surgery reversible?

The fundoplication procedure cannot be reversed, and in some cases it may not be possible to relieve the symptoms of these complications, even with a second surgery.