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Esophageal Varices

Definition:
The esophagus connects the mouth to the stomach. Esophageal varices are abnormally swollen veins within the lining of the esophagus. If undiagnosed or untreated, esophageal varices can rupture and lead to life-threatening bleeding.

Causes:
Increased pressure in the veins that deliver blood to the liver (known as portal hypertension) leads to the formation of esophageal varices. The increased pressure causes blood to back up into other smaller vessels, including those of the esophagus.

The medical conditions that lead to the development of portal hypertension and esophageal varices include:

  • Cirrhosis of the liver
  • Blood clots (of the splenic, portal, or hepatic veins)
  • Arterial-portal venous fistula (abnormal connections between arteries and veins in the liver or spleen)
  • Certain drugs (arsenic, azathioprine, methotrexate, and others)
  • Certain infections (for instance, schistosomiasis, a parasite)
  • Severe heart failure
Risk Factors:
The following factors increase your chances of developing esophageal varices. If you have any of these risk factors, tell your doctor:
  • Cirrhosis of the liver
  • Chronic hepatitis
  • Disorders of blood clotting
  • Certain parasitic infections
  • The use of certain drugs that harm the liver
Symptoms:
Esophageal varices are sometimes only diagnosed upon the occurrence of bleeding—a consequence in roughly half of all people with the condition. Though bleeding from esophageal varices may not be severe and may stop on its own, first-time bleeding events result in death in 30-50% of cases. Bleeding esophageal varices recur in approximately half of all patients.

Signs of bleeding from esophageal varices include:

  • Vomiting or coughing up blood
  • Red, tarry, or very dark stools
  • Low blood pressure
  • Rapid heartbeat

If you experience any of these symptoms do not assume it is due to esophageal varices. These symptoms may be caused by other health conditions. If you experience any one of them, see your physician.

Diagnosis:
Your doctor will ask about your symptoms and medical history, and perform a physical exam. Your doctor may also refer you to a gastroenterologist, a specialist skilled in the treatment of diseases of the digestive system.

Tests may include the following:

  • Endoscopy–a small, flexible tube attached to a light and camera is inserted into the mouth down into the esophagus and stomach to view the source of any bleeding and swollen vessel
  • CT Scan–a type of x-ray that uses a computer to make pictures of structures inside the esophagus and stomach
  • MRI Scan–a test that uses magnetic waves to make pictures of structures inside the esophagus and stomach
Treatment:
Several treatments can help lower the risk of vessel rupture or to stop bleeding if it starts. Treatment options include the following:

Variceal Band Ligation–During endoscopy, a rubber band is tied around the bulging veins to prevent ruptures or stop bleeding.

Sclerotherapy–Drugs intended to slow bleeding are injected into the bleeding vein and sometimes into the surrounding area. The drugs cause clots to form and harden the vein to stop bleeding.

Drug Therapy–Beta-blockers or long-acting nitrates are sometimes used to reduce blood pressure in the portal vein. Other drugs used to relieve blood pressure include terlipressin, vasopressin, nitroglycerin, octreotide, and somatostatin.

Transjugular Intrahepatic Portosystemic Shunting (TIPS)–TIPS involves threading a catheter from a neck vein to the liver. A stent, a small tube designed to keep veins open, is bound to the catheter and inserted into the liver to increase blood flow through the portal vein and relieve blood pressure in the esophageal varices.

Distal Splenorenal Shunt (DSRS)–A surgical procedure connecting the main vein in the spleen to the left kidney vein. The procedure is done to lower blood pressure in the swollen vessels and limit bleeding.

Liver Transplant–Liver transplantation is the only way to completely cure esophageal varices.

Prevention:
To help reduce your chances of getting esophageal varices, take the following steps:
  • Seek immediate treatment for long-term alcohol abuse.
  • Tell your doctor if you are at risk for chronic liver disease, blood clots, or are on medications that may damage the liver.

If you already have chronic liver disease, your doctor may prescribe drugs intended to prevent swollen vessels from developing.

 
 
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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