What is Barrett’s Esophagus?
Barrett’s esophagus is a condition in which the normal lining of the esophagus changes to tissue that resembles the lining of the intestine. This process, called intestinal metaplasia, occurs as a result of chronic acid exposure, most often from long-standing gastroesophageal reflux disease (GERD). Barrett’s esophagus increases the risk of developing esophageal adenocarcinoma, although most patients never progress to cancer.
What are the Causes of Barrett’s Esophagus?
Barrett’s esophagus is primarily associated with chronic reflux, but multiple factors may contribute:
- Chronic GERD: Persistent acid exposure damages the esophageal lining.
- Hiatal hernia: Can worsen reflux and increase risk.
- Genetic susceptibility: Family history may play a role.
- Lifestyle habits: Smoking, obesity, and high abdominal pressure increase risk.
- Male sex and older age: More common in men over 50.
- Caucasian ethnicity: Higher prevalence in Western populations.
What are the Symptoms of Barrett’s Esophagus?
Many patients have no symptoms beyond those of GERD, but common features include:
- Chronic heartburn or regurgitation
- Difficulty swallowing or sensation of food sticking
- Chest discomfort related to reflux
- Persistent cough, sore throat, or hoarseness
- Bloating or belching after meals
Alarm symptoms such as weight loss, vomiting, or anemia may warrant urgent evaluation.
How is Barrett’s Esophagus Diagnosed?
Diagnosis requires upper endoscopy with biopsy. During endoscopy, physicians assess for visible changes in the tissue and confirm intestinal metaplasia under a microscope. Patients are stratified based on dysplasia level, which guides management and surveillance intervals. Screening may be recommended for individuals with chronic GERD and multiple risk factors.
What are the Treatment Options for Barrett’s Esophagus?
Treatment aims to control reflux and prevent progression:
- Medication therapy: Proton pump inhibitors or H2 blockers to suppress acid.
- Lifestyle changes: Weight loss, smoking cessation, diet changes, elevating head of bed.
- Endoscopic therapies: Radiofrequency ablation, endoscopic mucosal resection, or cryotherapy for dysplasia.
- Surveillance endoscopy: Regular monitoring to detect precancerous changes early.
With early detection and appropriate care, most patients maintain good outcomes and avoid progression to cancer.