Understanding Heartburn After VSG: Acid Reflux and Hiatal Hernia Explained

Vertical Sleeve Gastrectomy (VSG), commonly known as the gastric sleeve, is an effective weight loss surgery that has helped many individuals manage obesity. However, one potential issue that some patients face after surgery is acid reflux, or GERD (gastroesophageal reflux disease). While not all patients experience it, heartburn after VSG can be a frustrating and persistent issue for many. In this article, we’ll explore the causes, symptoms, and treatments of acid reflux after sleeve surgery and how hiatal hernia after VSG can complicate matters.

What is Heartburn After VSG?

Heartburn is the uncomfortable, burning sensation that occurs when stomach acid flows back into the esophagus. It’s important to note that heartburn is a symptom, while GERD is the disease itself. GERD can cause a variety of symptoms beyond heartburn, including regurgitation, chest pain, and difficulty swallowing.

After VSG surgery, the anatomy of the stomach changes significantly. During the procedure, about 75% of the stomach is removed, leaving behind a narrow sleeve. For some patients, this alteration can lead to an increase in heartburn and acid reflux. In fact, studies show that around 25% of patients experience worsening heartburn after the procedure, while another 25% may see an improvement. The remaining 50% report no significant change in their symptoms.

Causes of Acid Reflux After Sleeve Surgery

There are a few reasons why patients develop acid reflux after sleeve surgery. The most common cause is related to the new shape and size of the stomach. The sleeve is much smaller and more rigid than the original stomach, which can cause increased pressure. This pressure may force stomach acid back into the esophagus, causing reflux.

Another factor is the lower esophageal sphincter (LES), a valve that separates the stomach from the esophagus. In some patients, the LES may not function properly after VSG, allowing acid to escape from the stomach into the esophagus. This can lead to heartburn, particularly when lying down or after eating a large meal.

Symptoms of Heartburn After VSG

Heartburn after VSG can vary in severity from mild discomfort to significant pain that interferes with daily life. Some of the common symptoms include:

• A burning sensation in the chest, especially after eating
• Regurgitation of food or sour liquid
• Difficulty swallowing
• Persistent coughing or throat irritation
• Disrupted sleep due to acid reflux, particularly when lying flat

For some patients, heartburn can become severe, leading to a condition known as Barrett’s esophagus. This occurs when the lining of the esophagus changes due to prolonged acid exposure, increasing the risk of esophageal cancer. While the risk is still relatively low, Barrett’s esophagus is a serious condition that requires medical attention.

Hiatal Hernia After VSG: A Hidden Cause of Acid Reflux

In addition to the changes in the stomach’s anatomy, a hiatal hernia after VSG can also contribute to heartburn and acid reflux. A hiatal hernia occurs when a portion of the stomach pushes up into the chest through the diaphragm. Normally, the diaphragm separates the chest and abdominal cavities, but a hiatal hernia causes the junction between the esophagus and stomach to slide up into the chest.

This shift creates a negative pressure that opens up the LES, allowing acid to flow more easily into the esophagus. A hiatal hernia after VSG can exacerbate symptoms of GERD, making heartburn worse and more difficult to manage.

Diagnosing Heartburn and Hiatal Hernia After VSG

If you’re experiencing heartburn after VSG, your doctor may recommend an endoscopy. This procedure involves inserting a small camera down your esophagus to get a clear view of the stomach and the esophagus. The doctor can check for signs of damage from acid reflux, as well as identify whether a hiatal hernia is contributing to the problem.

For patients with mild heartburn, treatment usually involves medication. Proton pump inhibitors (PPIs) like Pantoprazole or Omeprazole, or H2 blockers like Famotidine (Pepcid), are commonly used to reduce the amount of acid produced by the stomach. These medications can help manage symptoms, but they do not address the underlying cause of the reflux.

Treating Severe Heartburn and Hiatal Hernia After VSG

For patients with more severe symptoms, especially those with Barrett’s esophagus or significant discomfort, surgical intervention may be necessary. There are two primary options: repairing the hiatal hernia or revising the sleeve to a gastric bypass.

1. Hiatal Hernia Repair: For patients with a hiatal hernia after VSG, repairing the hernia can help alleviate symptoms. This procedure involves pulling the stomach back down into the abdomen and tightening the diaphragm to prevent the hernia from recurring. While this surgery is minimally invasive and has a low complication rate, it is not always a long-term solution. Around 50% of patients experience a recurrence of symptoms within a few years.
2. Revision to Gastric Bypass: The most effective long-term solution for severe acid reflux after sleeve surgery is revising the VSG to a Roux-en-Y gastric bypass. This surgery involves rerouting the digestive system to bypass most of the stomach, significantly reducing acid production and reflux. Nearly all patients who undergo this revision report immediate and lasting relief from heartburn and acid reflux symptoms. However, the gastric bypass does come with its own set of rules and lifestyle changes, including restrictions on fatty and greasy foods, NSAID use, smoking, and alcohol consumption.

Conclusion: Managing Heartburn After VSG

While heartburn after VSG can be frustrating, there are several treatment options available to help manage and reduce symptoms. For many, medications like PPIs or H2 blockers may provide enough relief. However, if symptoms are severe or associated with a hiatal hernia after VSG, surgical intervention may be the best option.

It’s important to talk to your doctor if you’re experiencing persistent heartburn or acid reflux after sleeve surgery. Addressing the problem early on can prevent complications like Barrett’s esophagus and help improve your quality of life.

Dr. Weiner has performed countless VSG to RNY revisions. It’s usually covered by insurance and can be life changing for those struggling with severe heartburn after VSG. Whether you choose medication or surgery, relief is possible, and you don’t have to suffer from GERD for the rest of your life.