GERD - Complications

Did you experience any complications with your GERD? What were they?

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What are the complications of GERD?

Ulcers

The liquid from the stomach that refluxes into the esophagus damages the cells lining the esophagus. The body responds in the way that it usually responds to damage, which is with inflammation (esophagitis). The purpose of inflammation is to neutralize the damaging agent and begin the process of healing. If the damage goes deeply into the esophagus, an ulcer forms. An ulcer is simply a break in the lining of the esophagus that occurs in an area of inflammation. Ulcers and the additional inflammation they provoke may erode into the esophageal blood vessels and give rise to bleeding into the esophagus.

Occasionally, the bleeding is severe and may require:

  • blood transfusions,
  • an endoscopic procedure (in which a tube is inserted through the mouth into the esophagus to visualize the site of bleeding and to stop the bleeding), or
  • surgical treatment.

Strictures

Ulcers of the esophagus heal with the formation of scars (fibrosis). Over time, the scar tissue shrinks and narrows the lumen (inner cavity) of the esophagus. This scarred narrowing is called a stricture. Swallowed food may get stuck in the esophagus once the narrowing becomes severe enough (usually when it restricts the esophageal lumen to a diameter of one centimeter). This situation may necessitate endoscopic removal of the stuck food. Then, to prevent food from sticking, the narrowing must be stretched (widened). Moreover, to prevent a recurrence of the stricture, reflux also must be prevented.

Barrett's esophagus

Long-standing and/or severe GERD causes changes in the cells that line the esophagus in some patients. These cells are pre-cancerous and may, though usually, become cancerous. This condition is referred to as Barrett's esophagus and occurs in approximately 10% of patients with GERD. The type of esophageal cancer associated with Barrett's esophagus (adenocarcinoma) is increasing in frequency. It is not clear why some patients with GERD develop Barrett's esophagus, but most do not.

Barrett's esophagus can be recognized visually at the time of an endoscopy and confirmed by microscopic examination of the lining cells. Then, patients with Barrett's esophagus can undergo periodic surveillance endoscopies with biopsies although there is not agreement as to which patients require surveillance. The purpose of surveillance is to detect progression from pre-cancer to more cancerous changes so that cancer-preventing treatment can be started. It also is believed that patients with Barrett's esophagus should receive maximum treatment for GERD to prevent further damage to the esophagus. Procedures are being studied that remove the abnormal lining cells. Several endoscopic, non-surgical techniques can be used to remove the cells. These techniques are attractive because they do not require surgery; however, there are associated with complications, and the long-term effectiveness of the treatments has not yet been determined. Surgical removal of the esophagus is always an option.

Cough and asthma

Many nerves are in the lower esophagus. Some of these nerves are stimulated by the refluxed acid, and this stimulation results in pain (usually heartburn). Other nerves that are stimulated do not produce pain. Instead, they stimulate yet other nerves that provoke coughing. In this way, refluxed liquid can cause coughing without ever reaching the throat! In a similar manner, reflux into the lower esophagus can stimulate esophageal nerves that connect to and can stimulate nerves going to the lungs. These nerves to the lungs then can cause the smaller breathing tubes to narrow, resulting in an attack of asthma.

Although GERD may cause cough, it is not a common cause of unexplained coughing. Although GERD also may be a cause of asthma, it is more likely that it precipitates asthmatic attacks in patients who already have asthma. Although chronic cough and asthma are common ailments, it is not clear just how often they are aggravated or caused by GERD.

Inflammation of the throat and larynx

If refluxed liquid gets past the upper esophageal sphincter, it can enter the throat (pharynx) and even the voice box (larynx). The resulting inflammation can lead to a sore throat and hoarseness. As with coughing and asthma, it is not clear just how commonly GERD is responsible for otherwise unexplained inflammation of the throat and larynx.

Inflammation and infection of the lungs

Refluxed liquid that passes from the throat (pharynx) and into the larynx can enter the lungs (aspiration). The reflux of liquid into the lungs (called aspiration) often results in coughing and choking. Aspiration, however, also can occur without producing these symptoms. With or without these symptoms, aspiration may lead to infection of the lungs and result in pneumonia. This type of pneumonia is a serious problem requiring immediate treatment. When aspiration is unaccompanied by symptoms, it can result in a slow, progressive scarring of the lungs (pulmonary fibrosis) that can be seen on chest X-rays. Aspiration is more likely to occur at night because that is when the processes (mechanisms) that protect against reflux are not active and the coughing reflex that protects the lungs also is not active.

Fluid in the sinuses and middle ears

The throat communicates with the nasal passages. In small children, two patches of lymph tissue, called the adenoids, are located where the upper part of the throat joins the nasal passages. The passages from the sinuses and the tubes from the middle ears (Eustachian tubes) open into the rear of the nasal passages near the adenoids. Refluxed liquid that enters the upper throat can inflame the adenoids and cause them to swell. The swollen adenoids then can block the passages from the sinuses and the Eustachian tubes. When the sinuses and middle ears are closed off from the nasal passages by the swelling of the adenoids, fluid accumulates within them. This accumulation of fluid can lead to discomfort in the sinuses and ears. Since the adenoids are prominent in young children, and not in adults, this fluid accumulation in the ears and sinuses is seen in children and not adults.

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