What Is Antral Erythema? Causes, Symptoms, and Treatment

Antral erythema refers to a condition affecting the lining of the stomach. It involves the antrum, the lower part of the stomach near the small intestine. This condition is characterized by redness or inflammation in this region, a visual observation indicating a change in the normal appearance of the gastric mucosa.

Understanding Antral Erythema

The antrum is a muscular section of the stomach that grinds food and mixes it with gastric juices before it moves into the small intestine. Erythema is a medical term for redness, often indicating inflammation. Antral erythema describes a visible redness of the stomach lining within this region.

This redness is not a disease in itself but rather a sign that inflammation is present in the stomach’s lower region. It is typically observed during an endoscopic procedure, where a doctor can directly view the internal surfaces of the digestive tract. The presence of antral erythema suggests an underlying issue is causing the gastric lining to become irritated or inflamed.

Common Causes

One of the most frequent causes of antral erythema is an infection with Helicobacter pylori (H. pylori). This bacterium can colonize the stomach lining, leading to chronic inflammation. Another common contributor is the regular use of non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or naproxen, which can irritate and damage the stomach’s protective barrier.

Excessive alcohol consumption can also lead to inflammation of the gastric lining due to its direct irritant effects. Bile reflux, where bile from the small intestine flows back into the stomach, can also cause chemical irritation and inflammation. Additionally, prolonged psychological stress can influence gastric function and contribute to inflammation in the stomach lining.

Recognizing the Symptoms

Antral erythema often does not produce distinct symptoms and may be discovered incidentally during an endoscopy. When symptoms are present, they are usually a result of the underlying condition causing the inflammation. These symptoms can be similar to those associated with gastritis or dyspepsia.

Individuals might experience upper abdominal pain, which can range from a dull ache to a burning sensation. Other common complaints include bloating, a feeling of fullness after eating a small amount of food, and indigestion. Nausea and occasional vomiting can also occur.

How Antral Erythema is Diagnosed

The primary method for diagnosing antral erythema is an upper endoscopy. During this procedure, a thin, flexible tube equipped with a camera is gently passed down the esophagus, through the stomach, and into the beginning of the small intestine. This allows the gastroenterologist to visually inspect the lining of these organs for any abnormalities, including redness or inflammation in the antrum.

During the endoscopy, the doctor often takes small tissue samples, or biopsies, from the stomach lining. These biopsies are then examined under a microscope to confirm the presence and type of inflammation. Biopsies are also used to test for H. pylori infection and to rule out other conditions that might mimic the appearance of antral erythema.

Treatment Options

Treatment for antral erythema primarily focuses on addressing the underlying cause of the inflammation. If H. pylori infection is identified, a course of antibiotics is prescribed to eradicate the bacteria. Proton pump inhibitors (PPIs) are often used to reduce stomach acid production, which helps the inflamed lining heal.

Lifestyle modifications play a role in managing symptoms and preventing further irritation. Avoiding NSAIDs is often recommended, and reducing or eliminating alcohol consumption can also be beneficial. Dietary adjustments, such as avoiding spicy, acidic, or fatty foods, can help alleviate discomfort. Managing stress through various techniques can also contribute to overall gastric health.