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What are common duct stones?Common duct stones are stones in the common bile duct. The common bile duct carries bile from the liver and gallbladder to the small intestine. Bile helps digest fats. The stones form from bile. How do they occur?Most gallstones and duct stones are made of cholesterol in the bile. Usually acids in bile keep cholesterol from forming into stones. If the amount of cholesterol in the bile increases beyond the ability of acids to maintain a balance, the cholesterol crystallizes and forms a stone. Some common duct stones result from ongoing infection in the bile duct or liver. The gallbladder is a pear-shaped organ that lies underneath the liver on your right side. The gallbladder stores bile produced by the liver. Stones usually form in the gallbladder, but they may form in the common bile duct. When stones form in the common bile duct, the condition is called choledocholithiasis. Also, gallstones may move from the gallbladder into the common bile duct and become lodged in the duct. Pressure from stones blocking the duct makes it hard for the liver and gallbladder to function. As a result, if you have stones you may have sudden pain on the right side of your abdomen. Gallstones occur more often in people who have high cholesterol levels or diabetes. What are the symptoms?The symptoms of common duct stones include:
How are they diagnosed?Your doctor will ask about your symptoms and do a physical exam. He or she may order lab tests to look for signs of bile duct blockage. In addition, these tests may be performed:
How are they treated?One nonsurgical way to treat common duct stones is with a drug called chenodiol/Ursodiol. This drug can dissolve existing common duct stones, but stones may come back after a few years. Also, chenodiol has been associated with liver problems. Another way to treat common duct stones is by passing an endoscope through the stomach and removing them through the tube. The stones may be surgically removed. During the operation your doctor will take a sample of your bile to check for infection in the biliary tract. If you have an infection, you may be given an antibiotic after the operation. The surgeon will examine the common bile duct to be sure that all stones are removed. If there is any question of stones still in the duct, your doctor will place a T-tube in the common duct. A T-tube is a catheter used to explore and flush the common duct. A cholangiogram can be taken through the T-tube 7 or 8 days after surgery. If you have a T-tube and some stones are found, a radiologist can remove the stones. If no stones appear on the cholangiogram and fluids are flowing properly, the T-tube may be clamped overnight and removed the next day. However, your surgeon may decide to keep the T-tube in longer. You and your doctor will decide when to schedule follow-up visits based on your symptoms and your general health. How long will the effects last?The effects of this condition will last as long as the stones remain in the bile duct and cause problems in the liver and gallbladder. How can I take care of myself?
What can be done to help prevent common duct stones?You can help to prevent getting more common duct stones by following your prescribed treatment. In addition, you can:
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