Diseases

Barrett’s Esophagus
Almost everyone has heartburn occasionally and it is nothing to be concerned about. However, heartburn that is severe or recurring over a long period of time can be harmful – this is known as Gastroesophageal Reflux Disease (GERD). If GERD is untreated, there is constant acid irritation to the lining of the esophagus and can cause complications. About 1 in 10 patients with GERD have Barrett’s Esophagus, which can be serious and may lead to cancer of the esophagus.
Click on the statements/questions below to reveal the answers to the causes, symtoms and
signs of this particular disease.
Named after Norman Rupert Barrett, this is a complication of severe chronic GERD involving changes in the cells of the tissue that line the bottom of the esophagus. These changes are a forerunner to cancer of the lower esophagus, known as adenocarcinoma.
In time, the cells may develop abnormal changes known as dysplasia. Over a period of 2-5 years, the “grade” of dysplasia may progress to high grade and eventually cancer. This occurs in approximately 1-5% of Barrett’s esophagus patients. Anecdotal evidence suggests that this cancer is becoming more prevalent – especially in white males – perhaps due to the fact that prescribed drugs may mask the symptoms.
On a related note, cancer of the upper esophagus (squamous cell cancer), which is usually related to alcohol and smoking, seems to be decreasing.
Barrett’s esophagus is found three times more often in males. In some cases it is congenital (present at birth). However, current evidence is strong that it more often develops as the result of long-term GERD. Patients with Barrett’s usually have symptoms similar to those produced by GERD (heartburn and acid reflux), but may also have other complications of GERD including esophageal peptic ulcers and stricture (narrowing of the esophagus that results from scarring).
Barrett’s esophagus is diagnosed with an exam called an upper endoscopy or EGD (esophagogastroduodenoscopy). Biopsies are performed on pieces of esophageal tissue to look for abnormal cells. If the results show “indefinite dysplasia”, medical treatment of the GERD is intensified and follow-up biopsies will be taken in 6-12 months. If dysplasia is definite, a treatment plan to address the changing cells will be determined.
A barium X-ray is not accurate for detecting Barrett’s esophagus.
Currently, there are no medications to reverse Barrett’s esophagus. However, it appears that treating the underlying GERD may slow the progression of the disease and prevent complications. Here are some things you can do to help reduce acid reflux and strengthen the LES (Lower Esophageal Sphincter).
Select the section below to learn about medications used to treat the underlying GERD, as well as surgical options.
A category of drugs known as Proton Pump Inhibitors (PPIs) are the main tool used to significantly reduce stomach acid. Common ones include Prilosec (omeprazole), Prevacid (lansoprazole) and Nexium (esomeprazole) taken once or twice a day. Other acid reducing drugs, including Zantac, Pepcid and Tagamet, are available. Reglan (metoclopramide) is a drug that can strengthen the LES, which helps reduce the reflux (splashing up) of acid into the esophagus.
Some patients with GERD may need surgery to strengthen the LES. This is called fundoplication and is generally performed laparoscopically. Using surgical instruments inserted into several small incisions, the upper curve of the stomach (the fundus) is wrapped around the esophagus and sewn into place so the lower portion of the esophagus passes through a small tunnel of stomach muscle. This procedure strengthens LES, which is the valve between the esophagus and stomach. The helps to prevent acid from refluxing up into the esophagus as easily, which enables the esophagus to heal.
If you have a hiatal hernia, it will also be repaired with this procedure.
If cancer is found, surgery to remove the lower esophagus is usually necessary. Your physician may also recommend surgical removal of the lower part of the esophagus if high grade dysplasia is present to prevent it from occurring.
A diagnosis of Barrett’s esophagus requires regular monitoring by a physician. While it is thought that controlling GERD reduces the risk of developing cancer, this has not been definitively proven. Therefore, your doctor must perform regular endoscopy exams (EGD) and biopsies to look for dysplasia.
Words to Know
Biopsy:
The removal of a sample of tissue for purposes of diagnosis. (Many definitions of “biopsy” stipulate that the sample of tissue is removed for examination under a microscope.)
Esophagus:
The muscular tube that connects the mouth to the stomach.
GERD
(Gastroesophageal Reflux Disease):
The backward flow of the acid into the esophagus due to improper functioning of a sphincter at the lower end of the esophagus, resulting in heartburn.
Heartburn:
A burning sensation felt behind the breastbone and sometimes in the neck and throat. It is caused by stomach acid refluxing (or splashing) up into the esophagus.
LES
(Lower Esophageal Sphincter):
The LES is located at the very bottom of the esophagus where the esophagus joins the top of the stomach. The LES is made up of muscles at the bottom of the esophagus as well as the muscles of the diaphragm (breathing muscle) that surround the bottom of the esophagus. When closed, the LES maintains a higher pressure than that of the stomach so that food and digestive juices cannot wash back into the esophagus.