Esophagitis: Symptoms, Causes, and Treatment

Esophagitis is inflammation of the esophagus, the muscular tube that carries food from the throat to the stomach. It affects a significant portion of the population and can cause painful swallowing and chest discomfort1 . If untreated, esophagitis may lead to serious complications such as strictures and Barrett's esophagus, which increases the risk of esophageal cancer1 . Understanding its types, symptoms, causes, and treatment options is essential for effective management and prevention2 .

Types of Esophagitis

Esophagitis is classified into several types based on its cause. These include reflux, infectious, eosinophilic, drug-induced, and radiation-related esophagitis3 .

Reflux esophagitis results from acid reflux due to dysfunction of the lower esophageal sphincter (LES), which normally prevents stomach acid from entering the esophagus1 . When the LES fails to close properly or opens inappropriately, gastric acid damages the esophageal mucosa, causing inflammation and injury1 . This condition is a major component of gastroesophageal reflux disease (GERD) and is common worldwide4 1. Chronic acid reflux leads to persistent mucosal damage and symptoms of esophagitis1 .

Infectious esophagitis occurs mainly in immunocompromised individuals, such as those with HIV/AIDS or undergoing chemotherapy5 . The most common pathogens include Candida species (fungal), herpes simplex virus (HSV), and cytomegalovirus (CMV) 6. These infections cause inflammation and ulceration of the esophageal lining. Immunosuppressed patients are particularly vulnerable to these infections7 .

Eosinophilic esophagitis (EoE) is an immune-mediated condition characterized by eosinophilic infiltration of the esophageal mucosa, defined by ≥15 eosinophils per high-power field on biopsy8 9. It is triggered by immune reactions to specific foods or airborne allergens10 . EoE causes chronic inflammation and esophageal dysfunction, often presenting with symptoms like dysphagia and food impaction8 11. The incidence of EoE is rising, especially in Western countries8 .

Medications can cause esophageal injury if they remain in contact with the esophageal lining for prolonged periods, especially when taken without adequate water3 . Common culprits include antibiotics (e.g., tetracycline, doxycycline), bisphosphonates, nonsteroidal anti-inflammatory drugs (NSAIDs), and potassium chloride3 . This type of esophagitis is also called pill-induced esophagitis and results from local irritation and mucosal damage3 .

Radiation esophagitis is a frequent complication of thoracic radiotherapy used to treat cancers in the chest or neck region8 . Radiation causes mucosal injury and inflammation of the esophagus, which can be acute or chronic8 . This type of esophagitis may cause significant discomfort and swallowing difficulties during and after treatment.

Common Symptoms

The symptoms of esophagitis vary depending on the cause and severity but commonly include:

• Painful or difficult swallowing (odynophagia and dysphagia) 212
• Burning chest pain or heartburn, often worsening after meals or when lying down4
• Feeling of food stuck in the throat or esophagus (food impaction), especially in EoE8 13
• Acid reflux and regurgitation4
• Nausea and vomiting14
• In severe cases, bleeding may occur, presenting as blood in vomit or dark stools14

In children, symptoms may include feeding difficulties, irritability during feeding, failure to thrive, and abdominal or chest pain15 16.

Primary Causes

Esophagitis arises from inflammation or injury to the esophageal mucosa caused by various insults6 . The main causes include acid reflux, infections, allergies, medications, radiation, and chemical injury7 .

Risk factors vary by esophagitis type but commonly include:

• Gastroesophageal reflux disease (GERD) and LES dysfunction, allowing acid reflux1
• Immunosuppression due to HIV/AIDS, cancer, chemotherapy, or immunosuppressive drugs7 5
• Use of certain medications that irritate the esophagus, especially when taken improperly3
• Radiation therapy targeting the chest or neck8
• Allergic conditions such as asthma, atopic dermatitis, or allergic rhinitis, increasing risk for EoE10
• Lifestyle factors such as smoking, obesity, large or fatty meals, and eating before bedtime4 17

Diagnostic Process

Diagnosis of esophagitis begins with a thorough clinical evaluation including history and physical examination6 . Confirmatory tests are used to identify the presence and cause of esophagitis:

• Esophagogastroduodenoscopy (EGD): Direct visualization of the esophageal mucosa to detect inflammation, erosions, ulcers, or rings2 1819.
• Biopsy and histologic examination: Tissue samples obtained during endoscopy confirm diagnosis and differentiate esophagitis types, such as eosinophilic infiltration in EoE2 18.
• Barium esophagram: X-ray imaging after swallowing barium to detect structural abnormalities and strictures3 17.
• Manometry: Measures esophageal motility disorders that may contribute to symptoms3 .
• Laboratory tests: May include cultures or PCR for infectious agents and allergy testing for EoE6 19.

Treatment Options

Treatment aims to control inflammation, relieve symptoms, and promote healing of the esophageal mucosa2 18. Therapy is tailored to the underlying cause of esophagitis6 .

Lifestyle modifications are essential in managing esophagitis, especially reflux-related types4 :

• Avoid trigger foods such as caffeine, alcohol, acidic, spicy, and fatty foods4 17.
• Eat smaller, more frequent meals to reduce reflux episodes4 .
• Avoid eating close to bedtime; remain upright for several hours after meals4 17.
• Lose excess weight to decrease intra-abdominal pressure and reflux4 .
• Elevate the head of the bed by 6 to 8 inches to reduce nocturnal reflux17 .
• Quit smoking and limit alcohol consumption4 17.

Pharmacologic treatment depends on the esophagitis subtype:

• Proton pump inhibitors (PPIs): First-line therapy for acid-related esophagitis to suppress gastric acid production and promote healing4 19.
• H2 receptor antagonists: Used for mild acid reflux symptoms4 .
• Antacids: Provide rapid but short-term symptom relief4 .
• Topical corticosteroids: For EoE, swallowed steroids such as budesonide or fluticasone reduce eosinophilic inflammation2 1819.
• Antifungal agents: For Candida infections, oral fluconazole is commonly used7 19.
• Antiviral drugs: For HSV or CMV esophagitis, acyclovir or ganciclovir are prescribed7 19.
• Monoclonal antibodies: Dupilumab is approved for EoE in patients aged 12 and older19 .

Surgical options are reserved for refractory cases or complications:

• Fundoplication: Strengthens the LES to prevent acid reflux in severe GERD-related esophagitis19 .
• Esophageal dilation: Used to treat strictures causing swallowing difficulties2 19.
• LINX procedure: A ring of magnetic beads placed around the LES to prevent reflux14 .

Prevention Strategies

Preventing esophagitis focuses on reducing risk factors and managing underlying causes4 :

• Maintain a healthy weight and avoid overeating4 .
• Avoid foods and drinks that trigger reflux or allergic reactions4 .
• Take medications with adequate water and remain upright for at least 30 minutes afterward to prevent pill-induced esophagitis3 .
• Quit smoking and limit alcohol intake4 .
• Manage allergies and immune conditions effectively10 .
• Early treatment of reflux symptoms reduces the risk of esophagitis development4 .

Potential Complications

If untreated, esophagitis can lead to serious complications1 :

• Esophageal strictures: Fibrosis from chronic inflammation narrows the esophagus, causing swallowing difficulties1 .
• Ulcerations: Open sores in the esophagus lining causing pain and bleeding3 12.
• Perforation: A rare but serious tear or hole in the esophagus20 .
• Barrett's esophagus: Metaplastic change where esophageal lining resembles intestinal tissue, increasing cancer risk1 .
• Malnutrition and weight loss: Due to pain and difficulty swallowing15 .

Managing Esophagitis

Living with esophagitis requires ongoing management to prevent recurrence and complications. Patients should adhere to prescribed medications and lifestyle recommendations4 . Regular follow-up with healthcare providers is important to monitor healing and adjust treatment as needed2 . Dietary counseling and patient education improve adherence and quality of life3 4.

FAQs About Esophagitis

Can esophagitis heal completely?
Yes, with proper treatment and removal of the cause, esophagitis symptoms often resolve and mucosal healing occurs2 18.

How long does esophagitis treatment take?
Recovery depends on the cause and severity but usually takes several weeks; chronic cases may require prolonged therapy2 .

Is GERD the same as esophagitis?
GERD is a common cause of esophagitis but not all GERD patients develop esophagitis1 .

Can esophagitis recur?
Yes, recurrence is common without ongoing management of underlying causes and lifestyle changes4 .

When should I see a doctor?
Seek medical care if symptoms persist beyond a few days, worsen, or cause difficulty eating or weight loss15 .