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Gastritis

Gastritis, an inflammation of the stomach lining, can cause burning pain, nausea, bloating. Dr. Nghia Nguyen at GastroDoxs in Houston offers diagnosis and treatment, combining advanced testing, tailored diets, medications and lifestyle changes to alleviate symptoms and promote rapid healing.

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Harris County Medical Society
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Nghia Nguyen

About the Expert

Dr. Nghia Nguyen, DO, is a board-certified gastroenterologist providing advanced digestive care in the Greater Houston area. He earned his medical degree from the Texas College of Osteopathic Medicine and completed both his Internal Medicine residency and Gastroenterology fellowship at the University of Texas at Rio Grande Valley. Dr. Nguyen specializes in treating conditions such as acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and liver disorders.

What Is Gastritis?

Gastritis is inflammation of the stomach lining that can occur suddenly (acute) or develop over time (chronic). It often causes a burning sensation or pain in the upper abdomen, especially after eating, and can lead to nausea, indigestion, and other digestive issues.

Common Causes and Risk Factors

  • Helicobacter pylori bacterial infection
  • Regular use of NSAIDs (aspirin, ibuprofen)
  • Excessive alcohol consumption
  • Frequent consumption of spicy or irritating foods
  • High stress levels or autoimmune disorders
  • Smoking or recreational drug use
  • Advancing age or other chronic health conditions

Signs and Symptoms

  • Burning feeling or pain in the upper stomach
  • Nausea, vomiting, or frequent indigestion
  • Feeling full quickly or loss of appetite
  • Bloating, gas, belching, or hiccups
  • Unexplained weight loss
  • Pain that may radiate to the upper back

How Dr. Nghia Nguyen Diagnoses Gastritis?

Dr. Nguyen uses a step-by-step approach:

Medical History and Physical Exam

He reviews your symptom timeline, diet habits, medication use (including NSAIDs), alcohol intake, stress levels, and any family history of GI disorders.

Blood Tests

We check for anemia, inflammation markers, and antibodies, and specifically test for Helicobacter pylori infection.

Non-Invasive H. pylori Testing

  • Breath test to detect active H. pylori bacteria.
  • Stool antigen test to confirm infection or eradication after treatment.

Upper Endoscopy

An endoscope is passed through your mouth into the stomach to directly visualize inflammation, erosions, or ulcers. Dr. Nguyen takes small biopsy samples to rule out infection or precancerous changes.

Imaging Studies (If Needed)

When symptoms persist or complications are suspected, an abdominal ultrasound or CT scan may be ordered to exclude other causes of upper-abdominal pain.

Nghia Nguyen
Treatment

Our Team offers a full range of care for gastritis.

1. Diet and Lifestyle Tips

  • Follow a customized 7-day meal plan to avoid foods that irritate your stomach
  • Stop using NSAIDs unless approved by your doctor
  • Limit or avoid alcohol and smoking
  • Eat smaller, more frequent meals
  • Use stress-reducing techniques such as breathing exercises or meditation

2. Medications

  • Antacids to relieve mild symptoms
  • H2 blockers to reduce acid production
  • Proton pump inhibitors (PPIs) for deeper healing
  • Antibiotics if you have an H. pylori infection

3. Minimally Invasive or Advanced Procedures

  • Endoscopic treatment to stop bleeding if ulcers are found
  • Capsule endoscopy to check for signs of irritation in hard-to-reach areas
Dr Nghia Nguyen

About the Author

Dr. Nghia Nguyen, DO, is a board-certified gastroenterologist providing advanced digestive care in the Greater Houston area. He earned his medical degree from the Texas College of Osteopathic Medicine and completed both his Internal Medicine residency and Gastroenterology fellowship at the University of Texas at Rio Grande Valley. Dr. Nguyen specializes in treating conditions such as acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and liver disorders.

Frequently Asked Questions

How long does gastritis last?

Acute gastritis often improves within days to weeks with treatment. Chronic gastritis may persist for months or years and sometimes requires ongoing management.

What is the ICD-10 code for gastritis?

The general ICD-10 code for unspecified gastritis is K29.5. More specific codes are used depending on the type and underlying cause.

Can gastritis cause back pain?

Yes. In some patients, stomach inflammation can cause pain that radiates into the upper back area.

What foods can I eat with gastritis?

Choose low-acid, non-irritating foods like bananas, rice, oatmeal, cooked vegetables, and lean proteins. A tailored 7-day meal plan can help you stay on track.

Do I need an endoscopy?

Your doctor may recommend an upper endoscopy if you have persistent symptoms, signs of bleeding, unexplained weight loss, or if initial treatments don't relieve your symptoms.

Can stress make gastritis worse?

Yes. While stress doesn't directly cause gastritis, it can trigger or worsen symptoms. Stress-reduction techniques often help decrease flare-ups.

Is H. pylori infection curable?

Yes. Most H. pylori infections are cured with a combination of antibiotics and acid-reducing medications prescribed by your physician.

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