Esophageal Varices

Esophageal varices are enlarged, swollen veins in the tube that connects your mouth to your stomach (esophagus). They develop when normal blood flow to the liver is blocked, often by severe liver disease. These fragile veins can rupture and bleed, which is a serious, life-threatening medical emergency requiring immediate attention.

What is Esophageal Varices?

Esophageal varices are swollen, fragile veins in the lining of your esophagus, the muscular tube that carries food from your throat to your stomach. They form when blood flow to your liver is blocked, causing blood to back up into smaller veins, which then enlarge and become prone to bleeding. This condition is a serious complication of severe liver disease.

Your liver normally filters blood from your digestive organs. When you have severe liver scarring (cirrhosis), blood cannot flow through your liver easily. This blockage increases pressure in the main vein leading to the liver, called the portal vein (portal hypertension). To bypass the blocked liver, blood reroutes into smaller, nearby veins, including those in the lower part of your esophagus. These veins are not designed to handle such high pressure and increased blood volume. As a result, they swell and become thin-walled, resembling varicose veins you might see on legs, but inside your esophagus. Esophageal varices often have no symptoms unless they rupture and bleed. Bleeding varices are a medical emergency because they can lead to significant blood loss very quickly. The risk of bleeding increases with the size of the varices and the severity of the underlying liver disease.

Symptoms

Esophageal varices usually do not cause any symptoms unless they begin to bleed. When bleeding occurs, symptoms can include vomiting large amounts of blood, black or tarry stools, lightheadedness, and signs of shock. Bleeding varices are a medical emergency requiring immediate attention.

If esophageal varices are not bleeding, you typically won't know you have them. They don't cause pain or discomfort on their own. The first sign of varices is often when they rupture and bleed. Symptoms of bleeding esophageal varices include: * Vomiting large amounts of blood. This blood may be bright red or look like coffee grounds. * Black, tarry, or bloody stools. This indicates blood has passed through your digestive system. * Feeling lightheaded, dizzy, or fainting. This is due to blood loss. * Signs of shock, such as rapid heart rate, low blood pressure, and confusion. It is important to remember that these symptoms are severe and indicate a life-threatening emergency. If you experience any of these, you need immediate medical help.

Causes & risk factors

Esophageal varices are primarily caused by severe scarring of the liver (cirrhosis), which is often due to conditions like chronic viral hepatitis, alcoholic liver disease, or nonalcoholic fatty liver disease. This scarring blocks blood flow through the liver, increasing pressure in the portal vein and forcing blood into smaller, fragile esophageal veins.

The main cause of esophageal varices is high blood pressure in the portal vein (portal hypertension). This condition develops when blood flow through your liver is obstructed. The most common cause of this obstruction is severe scarring of the liver, known as cirrhosis. Conditions that can lead to cirrhosis and, subsequently, esophageal varices include: * **Chronic viral hepatitis:** Long-term infection with hepatitis B or C can damage the liver over many years. * **Alcoholic liver disease:** Excessive alcohol consumption can lead to inflammation and scarring of the liver. * **Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH):** Fat buildup in the liver, often linked to obesity and diabetes, can progress to inflammation and scarring. * **Bile duct diseases:** Conditions like primary biliary cholangitis or primary sclerosing cholangitis can damage bile ducts, leading to liver scarring. * **Genetic diseases:** Certain inherited conditions, such as hemochromatosis (iron overload) or Wilson's disease (copper overload), can cause liver damage. Other less common causes of portal hypertension include blood clots in the portal vein or splenic vein, or a parasitic infection called schistosomiasis. Risk factors for bleeding from varices include large varices, severe liver disease, and continued alcohol use.

How it's diagnosed

Esophageal varices are typically diagnosed through an upper endoscopy, a procedure where a thin, flexible tube with a camera is guided down your throat to examine your esophagus, stomach, and the beginning of your small intestine. This allows doctors to directly visualize the swollen veins and assess their size and risk of bleeding.

Because esophageal varices usually don't cause symptoms until they bleed, doctors often screen for them in people with known liver disease, especially cirrhosis. The primary diagnostic tool is an upper endoscopy (also called esophagogastroduodenoscopy or EGD). During an endoscopy, you will receive medication to help you relax and numb your throat. A doctor then inserts a thin, flexible tube with a light and camera (endoscope) down your throat. The endoscope allows the doctor to see the lining of your esophagus, stomach, and the first part of your small intestine. They can identify the varices, note their size, and look for signs that they might bleed, such as red spots on the veins. Other tests may be used to assess liver function and the severity of liver disease, which helps determine the risk of variceal bleeding. These can include blood tests to check liver enzymes and clotting factors, and imaging tests like ultrasound, CT scan, or MRI to evaluate the liver and blood flow.

Treatment options

Treatment for esophageal varices focuses on preventing bleeding and stopping active bleeding. Emergency treatments for bleeding varices include endoscopic banding or injections, medications to reduce blood pressure, and sometimes a shunt procedure. Preventive treatments involve medications like beta-blockers to lower portal vein pressure and endoscopic banding to tie off varices before they bleed.

If you have actively bleeding esophageal varices, immediate medical treatment is crucial to stop the bleeding and prevent further blood loss. Emergency treatments may include: * **Endoscopic band ligation (banding):** During an endoscopy, the doctor places tiny elastic bands around the base of the varices to tie them off. This stops the blood flow through the varices and causes them to shrink and eventually fall off. * **Endoscopic injection sclerotherapy:** A solution is injected into or around the varices to cause them to scar and close off. This is less common than banding but may be used in certain situations. * **Medications:** Drugs like octreotide or vasopressin can be given intravenously to slow blood flow to the liver and reduce pressure in the varices. * **Balloon tamponade:** In severe, uncontrolled bleeding, a balloon attached to a tube is inserted into the esophagus and inflated to put pressure on the varices and stop the bleeding temporarily. This is a short-term measure until other treatments can be performed. * **Transjugular intrahepatic portosystemic shunt (TIPS):** This procedure involves placing a stent (a small tube) to create a new pathway for blood flow through the liver, bypassing the areas of high pressure. This significantly reduces portal hypertension but carries risks and is typically reserved for cases where other treatments fail. For people with varices that have not bled, treatment focuses on preventing a first bleed or re-bleeding. This often involves: * **Beta-blocker medications:** Drugs like propranolol or nadolol can help lower blood pressure in the portal vein, reducing the risk of variceal bleeding. * **Endoscopic band ligation:** This procedure can be performed electively to band varices that are at high risk of bleeding, even if they haven't bled yet. It is often done in a series of sessions. Treating the underlying liver disease is also a critical part of managing esophageal varices.

Recovery & outlook

Recovery from esophageal varices depends heavily on whether bleeding occurred and the severity of the underlying liver disease. With prompt treatment for bleeding, many people can recover, but there is a risk of re-bleeding. Long-term outlook involves ongoing management of liver disease, regular monitoring, and preventive treatments to reduce the risk of future bleeding.

If you experience a bleeding episode from esophageal varices, your immediate recovery will focus on stabilizing your condition, stopping the bleeding, and replacing lost blood. After the emergency is controlled, you will likely need to stay in the hospital for monitoring and further treatment. The risk of re-bleeding is significant, especially in the first few days to weeks after an initial bleed. Long-term management involves a combination of medications (like beta-blockers) and repeat endoscopic procedures (like banding) to prevent future bleeding. Regular follow-up endoscopies are often necessary to monitor the varices and perform additional banding as needed. Treating the underlying liver disease is paramount to improving the overall outlook. This might involve antiviral therapy for hepatitis, abstinence from alcohol for alcoholic liver disease, or lifestyle changes for nonalcoholic fatty liver disease. The outlook for people with esophageal varices varies widely. It is largely determined by the severity of the liver disease and whether varices have bled. People whose varices have bled have a higher risk of complications and a more guarded prognosis. However, with effective treatment and ongoing management, many people can live for years after a bleeding episode. In some cases of severe liver disease, a liver transplant may be considered as a definitive treatment.

When to see a doctor

You should see a doctor immediately if you have been diagnosed with liver disease and develop any new symptoms, such as unexplained fatigue, yellowing of the skin or eyes (jaundice), or swelling in your legs or abdomen. It is a medical emergency to seek immediate help if you vomit blood, pass black or tarry stools, feel lightheaded or dizzy, or faint, as these are signs of actively bleeding esophageal varices.

If you have a known liver condition, especially cirrhosis, it is important to have regular check-ups with your doctor. They can screen for esophageal varices before they become a problem. Discuss any new or worsening symptoms with your healthcare provider promptly. **Seek immediate emergency medical attention (call 911 or your local emergency number) if you experience any of the following, as these are signs of actively bleeding esophageal varices:** * Vomiting large amounts of blood, which may be bright red or look like coffee grounds. * Passing black, tarry stools, or stools that contain visible blood. * Feeling very lightheaded, dizzy, or faint. * Experiencing confusion or disorientation. * Having a rapid heart rate or low blood pressure. These symptoms indicate a life-threatening emergency that requires urgent medical intervention to stop the bleeding and stabilize your condition. Do not delay seeking help.

Frequently asked questions

Can esophageal varices go away on their own?

Esophageal varices typically do not go away on their own. They are a complication of underlying liver disease that causes high pressure in the portal vein. While treatments can reduce their size or eliminate them, the underlying cause needs to be managed to prevent new varices from forming or existing ones from worsening.

What foods should I avoid if I have esophageal varices?

There are no specific foods that directly cause or prevent varices. However, if you have liver disease, your doctor may recommend a diet that supports liver health, such as limiting salt, avoiding alcohol, and maintaining a healthy weight. Eating soft, easy-to-swallow foods may be advised if varices are large to reduce irritation, but this is not a universal recommendation.

How often do esophageal varices bleed?

About 50% of people with cirrhosis develop varices, and about 10% to 15% of these people will experience a variceal hemorrhage within one year. Once a person has had a variceal hemorrhage, the risk of rebleeding is high, especially in the first few days to weeks, if not properly managed with preventive treatments.

Is a liver transplant a treatment option for esophageal varices?

A liver transplant is not a direct treatment for varices themselves, but it can be a definitive treatment for the underlying severe liver disease (cirrhosis) that causes varices. By replacing the diseased liver, a transplant can resolve portal hypertension and prevent varices from forming or recurring.

Can stress cause esophageal varices to bleed?

While stress can affect overall health, there is no direct evidence that emotional stress alone causes esophageal varices to bleed. Bleeding is primarily triggered by high pressure within the varices. However, managing stress is important for overall well-being, especially for those with chronic health conditions.

What is the difference between esophageal varices and hemorrhoids?

Both esophageal varices and hemorrhoids are swollen veins. However, esophageal varices occur in the esophagus due to high blood pressure in the portal vein, usually from liver disease, and can cause life-threatening bleeding. Hemorrhoids are swollen veins in the rectum or anus, often caused by straining, and while they can bleed and be uncomfortable, they are generally not life-threatening.

Sources

• MedlinePlus — Esophageal Varices
• Mayo Clinic — Esophageal Varices
• Cochrane Library — Esophageal Varices