What are bleeding esophageal varices?
Bleeding esophageal varices occur when swollen veins (varices) in your lower esophagus rupture and bleed.
The varices are fragile and can rupture easily, resulting in a large amount of blood loss. The most common cause of portal hypertension is cirrhosis of the liver.
The esophagus is the muscular tube that connects your mouth to your stomach. The veins in your lower esophagus near the stomach can become swollen when blood flow to the liver is reduced. This may be due to scar tissue or a blood clot within the liver.
When liver blood flow is obstructed, blood builds up in other blood vessels nearby, including those in your lower esophagus. However, these veins are much smaller, and they’re incapable of carrying large amounts of blood. They dilate and swell as a result of the increased blood flow. The swollen veins are known as esophageal varices.
Symptoms of bleeding esophageal varices
Esophageal varices are unlikely to cause symptoms unless they have ruptured. When this happens, you may experience:
- shock (excessively low blood pressure due to blood loss that can lead to multiple organ damage)
- lightheadedness or loss of consciousness
- melena (black stools)
- hematemesis (blood in your vomit)
- stomach pain
- bloody stools (in severe cases)
Diagnosing bleeding esophageal varices
To diagnose esophageal varices, your doctor will perform a physical examination and ask you about your symptoms. They may also use one or more of the following tests to confirm the diagnosis:
Endoscopy: During this procedure, a small lighted camera scope is inserted into the mouth and used to look down the esophagus, into the stomach, and into the beginning of the small intestine. It’s used to look more closely at dilated veins and organs. It can also be used to take tissue samples and treat bleeding.
Blood tests: These are used to evaluate blood cell counts and liver and kidney function.
Imaging tests: such as CT and MRI scans: These are used to examine the liver and abdominal organs and evaluate the blood flow in and around these organs.
Causes of bleeding esophageal varices
The portal vein transports blood from several organs in the gastrointestinal tract into the liver. Esophageal varices are a direct result of high blood pressure in the portal vein. This condition is called portal hypertension. It causes blood to build up in nearby blood vessels, including those in your esophagus. Veins begin to dilate and swell as a result of increased blood flow.
Cirrhosis is the most common cause of portal hypertension. Cirrhosis is a severe scarring of the liver that often develops due to excessive alcohol consumption or serious infections, such as hepatitis. Another potential cause of portal hypertension is portal vein thrombosis, a condition that occurs when blood clots inside the portal vein.
In some cases, the cause of portal hypertension is unknown. This is referred to as idiopathic portal hypertension.
Esophageal varices are more likely to bleed if you have:
- portal hypertension
- severe cirrhosis
- large esophageal varices
- red marks on the esophageal varices as seen on a lighted stomach scope (endoscopy)
- excessive vomiting
- a bacterial infection
- excessive alcohol use
- severe coughing bouts
Bleeding esophageal varices prevention
The best way to prevent esophageal varices is to correct the underlying cause. If you have liver disease, consider the following preventive measures to reduce your risk of developing esophageal varices:
- Maintain a healthy weight.
- Lower your risk for hepatitis by practicing safe sex. Don’t share needles or razors, and avoid contact with the blood and other bodily fluids of an infected person.
- Eat a healthy diet that largely consists of low salt, lean protein, whole grains, fruits, and vegetables.
- Stop drinking alcohol.
It’s very important to stick with your treatment plan and attend regular appointments with your doctor if you have esophageal varices.
Bleeding esophageal varices treatment
The main goal of treatment is to prevent esophageal varices from rupturing and bleeding.
Controlling portal hypertension
Controlling portal hypertension is usually the first step in lowering the risk of bleeding. This may be achieved through the use of the following treatments and medications:
Endoscopic variceal ligation (banding): Your doctor will use an endoscope to tie off the swollen veins in your esophagus with an elastic band so they can’t bleed. They’ll remove the bands after a few days.
Beta-blockers: Your doctor may prescribe beta-blocker medications, such as propranolol, to lower your blood pressure.
Endoscopic sclerotherapy: Using an endoscope, your doctor will inject a medication into your swollen veins that will shrink them.
You may need additional treatments if your esophageal varices have already ruptured.
After bleeding has begun
After you receive treatment for bleeding esophageal varices, you must attend regular follow-up appointments with your doctor to make sure the treatment was successful.
Endoscopic variceal ligation and endoscopic sclerotherapy are generally preventive treatments. However, your doctor can also use them if your esophageal varices have already begun to bleed. A medication called octreotide may be used as well. This drug will lower the pressure in the swollen veins by tightening the blood vessels and reducing blood flow.
Transjugular intrahepatic portosystemic shunt (TIPS) procedure is another potential treatment option for recurrent bleeding esophageal varices. This is a procedure that uses an X-ray to guide the placement of a device that creates new connections between two blood vessels in your liver.
A small tube is used to connect the portal vein with the hepatic vein. The hepatic vein transports blood from the liver to the heart. This connection creates a diversion for the blood flow.
Distal splenorenal shunt procedure (DSRS) is another treatment option but is more invasive. This is a surgical procedure that connects the main vein from the spleen to the vein of the left kidney. This controls bleeding from esophageal varices in 90 percent of people.
In rare cases, a liver transplant may be necessary.
Bleeding will continue to occur if the condition isn’t treated promptly. Without treatment, bleeding esophageal varices can be fatal.