Gastroesophageal reflux disease (GERD)

Gastroesophageal reflux disease (GERD)

Overview

Gastroesophageal reflux disease happens when stomach acid flows back up into the esophagus and causes heartburn. It's often called GERD for short. This backwash is known as acid reflux, and it can irritate the lining of the esophagus.

Many people experience acid reflux now and then. However, when acid reflux happens repeatedly over time, it can cause GERD.

Most people can manage the discomfort of GERD with lifestyle changes and medicines. And though it's uncommon, some may need surgery to help with symptoms.

Symptoms

Common symptoms of GERD include:

A burning sensation in the chest, often called heartburn. Heartburn usually happens after eating and might be worse at night or while lying down.

Backwash of food or sour liquid in the throat.

Upper belly or chest pain.

Trouble swallowing, called dysphagia.

Sensation of a lump in the throat.

If you have nighttime acid reflux, you also might experience:

An ongoing cough.

Inflammation of the vocal cords, known as laryngitis.

New or worsening asthma.

Causes

GERD is caused by frequent acid reflux or reflux of nonacidic content from the stomach.

When you swallow, a circular band of muscle around the bottom of the esophagus, called the lower esophageal sphincter, relaxes to allow food and liquid to flow into the stomach. Then the sphincter closes again.

If the sphincter does not relax as is typical or it weakens, stomach acid can flow back into the esophagus. This constant backwash of acid irritates the lining of the esophagus, often causing it to become inflamed.

Risk factors

Conditions that can increase the risk of GERD include:

Obesity.

Bulging of the top of the stomach up above the diaphragm, known as a hiatal hernia.

Pregnancy.

Connective tissue disorders, such as scleroderma.

Delayed stomach emptying.

Factors that can aggravate acid reflux include:

Smoking.

Eating large meals or eating late at night.

Eating certain foods, such as fatty or fried foods.

Drinking certain beverages, such as alcohol or coffee.

Taking certain medicines, such as aspirin.

Complications

Over time, long-lasting inflammation in the esophagus can cause:

Inflammation of the tissue in the esophagus, known as esophagitis. Stomach acid can break down tissue in the esophagus. This can cause inflammation, bleeding and sometimes an open sore, called an ulcer. Esophagitis can cause pain and make swallowing difficult.

Narrowing of the esophagus, called an esophageal stricture. Damage to the lower esophagus from stomach acid causes scar tissue to form. The scar tissue narrows the food pathway, leading to problems with swallowing.

Precancerous changes to the esophagus, known as Barrett esophagus. Damage from acid can cause changes in the tissue lining the lower esophagus. These changes are associated with an increased risk of esophageal cancer.

Diagnosis

A healthcare professional might be able to diagnose GERD based on a history of symptoms and a physical examination.

To confirm a diagnosis of GERD, or to check for complications, a care professional might recommend:

Upper endoscopy. An upper endoscopy uses a tiny camera on the end of a flexible tube to visually examine the upper digestive system. The camera helps provide a view of the inside of the esophagus and stomach. Test results may not show when reflux is present, but an endoscopy may find inflammation of the esophagus or other complications.

An endoscopy also can be used to collect a sample of tissue, called a biopsy, to be tested for complications such as Barrett esophagus. In some instances, if a narrowing is seen in the esophagus, it can be stretched or dilated during this procedure. This is done to improve trouble swallowing.

Ambulatory acid (pH) probe test. A monitor is placed in the esophagus to identify when, and for how long, stomach acid regurgitates there. The monitor connects to a small computer that's worn around the waist or with a strap over the shoulder.

The monitor might be a thin, flexible tube, called a catheter, that's threaded through the nose into the esophagus. Or it might be a clip that's placed in the esophagus during an endoscopy. The clip passes into the stool after about two days.

X-ray of the upper digestive system. X-rays are taken after drinking a chalky liquid that coats and fills the inside lining of the digestive tract. The coating allows a healthcare professional to see a silhouette of the esophagus and stomach. This is particularly useful for people who are having trouble swallowing.

Sometimes, an X-ray is done after swallowing a barium pill. This can help diagnose a narrowing of the esophagus that's interfering with swallowing.

Esophageal manometry. This test measures the rhythmic muscle contractions in the esophagus while swallowing. Esophageal manometry also measures the coordination and force exerted by the muscles of the esophagus. This is typically done in people who have trouble swallowing.

Transnasal esophagoscopy. This test is done to look for any damage in the esophagus. A thin, flexible tube with a video camera is put through the nose and moved down the throat into the esophagus. The camera sends pictures to a video screen.

Treatment

A healthcare professional is likely to recommend trying lifestyle changes and nonprescription medicines as a first line of treatment. If you don't experience relief within a few weeks, prescription medicine and additional testing may be recommended.

Nonprescription medicines

Options include:

Antacids that neutralize stomach acid. Antacids containing calcium carbonate, such as Mylanta, Rolaids and Tums, may provide quick relief. But antacids alone won't heal an inflamed esophagus damaged by stomach acid. Overuse of some antacids can cause side effects, such as diarrhea or sometimes kidney complications.

Medicines to reduce acid production. These medicines — known as histamine (H-2) blockers — include cimetidine (Tagamet HB), famotidine (Pepcid AC) and nizatidine (Axid). H-2 blockers don't act as quickly as antacids, but they provide longer relief and may decrease acid production from the stomach for up to 12 hours. Stronger versions are available by prescription.

Medicines that block acid production and heal the esophagus. These medicines — known as proton pump inhibitors — are stronger acid blockers than H-2 blockers and allow time for damaged esophageal tissue to heal. Nonprescription proton pump inhibitors include lansoprazole (Prevacid), omeprazole (Prilosec OTC) and esomeprazole (Nexium).

If you start taking a nonprescription medicine for GERD, be sure to inform your care provider.

Prescription medicines

Prescription-strength treatments for GERD include:

Prescription-strength proton pump inhibitors. These include esomeprazole (Nexium), lansoprazole (Prevacid), omeprazole (Prilosec), pantoprazole (Protonix), rabeprazole (Aciphex) and dexlansoprazole (Dexilant).

Although generally well tolerated, these medicines might cause diarrhea, headaches, nausea or, in rare instances, low vitamin B-12 or magnesium levels.

Prescription-strength H-2 blockers. These include prescription-strength famotidine and nizatidine. Side effects from these medicines are generally mild and well tolerated.

Potassium-competitive acid blockers (P-CABs). This new class of medicines may be recommended for someone with severe acid reflux if other medicines haven't worked. They include vonoprazan (Voquezna) and tegoprazan (K-Cab).

Deep-breathing training

A technique known as diaphragmatic breathing may help improve GERD symptoms for some people. This exercise is done after eating. It involves breathing deeply into the diaphragm rather than shallowly into the chest. Diaphragmatic breathing techniques should ideally be taught by a trained medical professional.

Surgery and other procedures

GERD can usually be controlled with medicine. But if medicines don't help or you wish to avoid long-term medicine use, a healthcare professional might recommend:

Fundoplication. The surgeon wraps the top of the stomach around the lower esophageal sphincter, to tighten the muscle and prevent reflux. Fundoplication is usually done with a minimally invasive, called laparoscopic, procedure. The wrapping of the top part of the stomach can be partial or complete, known as Nissen fundoplication. The most common partial procedure is the Toupet fundoplication. Your surgeon typically recommends the type that is best for you.

LINX device. A ring of tiny magnetic beads is wrapped around the junction of the stomach and esophagus. The magnetic attraction between the beads is strong enough to keep the junction closed to refluxing acid, but weak enough to allow food to pass through. The LINX device can be implanted using minimally invasive surgery. The magnetic beads do not affect airport security or magnetic resonance imaging.

Transoral incisionless fundoplication (TIF). This new procedure involves tightening the lower esophageal sphincter by creating a partial wrap around the lower esophagus using polypropylene fasteners. TIF is performed through the mouth by using an endoscope and requires no surgical incision. Its advantages include quick recovery time and high tolerance.

If you have a large hiatal hernia, TIF alone is not an option. However, TIF may be possible if it is combined with laparoscopic hiatal hernia repair.

Because obesity can be a risk factor for GERD, a healthcare professional could suggest weight-loss surgery as an option for treatment. Talk with your healthcare team to find out if you're a candidate for this type of surgery.

Type of Doctor Department :  A gastroenterologist