A hiatal hernia occurs when part of the stomach pushes up through the diaphragm into the chest cavity.

This condition can affect both adults and children, though the causes and management may differ.

Learn more about hiatal hernia, including its definition, causes, symptoms, diagnosis, treatment, and potential risks and complications.

Hiatal hernia surgery at WashU Medicine

Our surgeons have expertise in treating hiatal hernias in adults and children. We care for adults at Barnes-Jewish Hospital, one of the top hospitals in the nation, as well as convenient locations around St. Louis. Our pediatric specialists care for children at St. Louis Children’s Hospital.

Adult appointments: 314-362-7260
Pediatric appointments: 314-454-6022

What is a hiatal hernia?

A hiatal hernia is a condition where a portion of the stomach protrudes through the diaphragm into the chest cavity.

The diaphragm is a large muscle that helps with breathing and separates the abdominal cavity from the chest cavity.

The hernia occurs through the esophageal hiatus, an opening in the diaphragm through which the esophagus passes before connecting to the stomach.

Types of hiatal hernia

Sliding hiatal hernia

  • Description: The most common type, where the stomach and the lower part of the esophagus slide up into the chest through the hiatus.
  • Symptoms: Often associated with gastroesophageal reflux disease (GERD), with symptoms like heartburn and regurgitation.

Paraesophageal hiatal hernia

  • Description: Less common but more concerning type, where part of the stomach pushes through the diaphragm next to the esophagus. The esophagus and stomach remain in their usual positions, but part of the stomach squeezes through the hiatus.
  • Symptoms: May cause more severe symptoms and complications, such as chest pain, difficulty swallowing, or even stomach strangulation.

Causes of hiatal hernia

Adults

  • Aging: Weakening of the diaphragm muscles with age.
  • Increased pressure: Factors that increase abdominal pressure, such as obesity, pregnancy, heavy lifting, or straining during bowel movements.
  • Injury: Trauma or surgery to the abdominal area.

Children

  • Congenital defect: Hiatal hernias in children are often present at birth due to an abnormally large hiatus.
  • Developmental issues: Problems during fetal development affecting the diaphragm and esophagus.

Symptoms of hiatal hernia

Common symptoms

  • Heartburn: Burning sensation in the chest, often after eating.
  • Regurgitation: Backflow of stomach acid or food into the esophagus.
  • Difficulty swallowing: Feeling of food getting stuck in the chest or throat.
  • Chest or abdominal pain: Discomfort or pain in the chest or upper abdomen.
  • Bloating and belching: Excessive gas or bloating after meals.

Severe symptoms (especially with paraesophageal hernia)

  • Shortness of breath: Difficulty breathing due to pressure on the diaphragm.
  • Nausea and vomiting: Feeling sick or vomiting, particularly after eating.
  • Anemia: Chronic blood loss leading to anemia, often detected through fatigue and weakness.

Diagnosis of hiatal hernia

Medical history and physical examination

  • Symptom assessment: Detailed inquiry about the severity, frequency, and triggers of symptoms like heartburn and chest pain.
  • Physical examination: Checking for tenderness or abnormalities in the abdomen and chest.

Diagnostic tests

  • Barium swallow X-ray: A series of X-rays taken after swallowing a barium solution to highlight the esophagus and stomach on the images.
  • Endoscopy: An examination of the esophagus, stomach, and part of the small intestine using a flexible tube with a camera (endoscope).
  • Esophageal manometry: A test measuring the rhythmic muscle contractions (peristalsis) of the esophagus when swallowing.
  • pH test: Monitoring the acid level in the esophagus to detect GERD.

Treatment of hiatal hernia

Lifestyle modifications

  • Diet changes: Eating smaller, more frequent meals, avoiding trigger foods (e.g., spicy, fatty foods), and not lying down immediately after eating.
  • Weight management: Losing weight to reduce abdominal pressure.
  • Elevating the head of the bed: Raising the head of the bed to prevent nighttime reflux.

Learn more about obesity>>

Medications

  • Antacids: Over-the-counter medications to neutralize stomach acid.
  • H2 receptor blockers: Medications like ranitidine or famotidine to reduce acid production.
  • Proton pump inhibitors (PPIs): Stronger medications like omeprazole or esomeprazole to decrease acid production and heal the esophagus.

Surgical treatment

  • Indications for surgery: Severe symptoms, complications like esophagitis or strangulation, or failure of medical management.
  • Nissen fundoplication: The most common surgical procedure where the top part of the stomach is wrapped around the lower esophagus to reinforce the lower esophageal sphincter and prevent reflux.
  • Paraesophageal hernia repair: Surgery to reposition the stomach and repair the weakened area of the diaphragm.

Special considerations for children

  • Observation and conservative management: Many children with mild symptoms can be managed with lifestyle changes and medications.
  • Surgical intervention: Required for severe cases or complications, with a focus on minimally invasive techniques.

Potential risks and complications

  • GERD: Ongoing reflux of stomach acid into the esophagus, causing symptoms and potential esophageal damage.
  • Esophagitis: Inflammation of the esophagus due to chronic acid exposure.
  • Strangulation: Risk of the stomach becoming trapped and blood supply cut off, a surgical emergency.
  • Ulcers: Formation of ulcers in the esophagus or stomach.
  • Bleeding: Chronic gastrointestinal bleeding leading to anemia.

Long-term considerations

  • Symptom management: Importance of ongoing management with medications and lifestyle modifications to control symptoms.
  • Regular monitoring: Follow-up appointments to monitor the condition and adjust treatment plans as needed.

Hiatal hernia is a condition that requires careful management to prevent complications and improve quality of life. Understanding the causes, symptoms, diagnostic methods, treatment options, and potential risks is essential for effective care.

If you or a family member are experiencing symptoms of a hiatal hernia, consult with a health care provider to receive a thorough evaluation and develop a personalized treatment plan tailored to your specific needs.