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Last updated: 11/24/2009
The gallbladder is not a vital organ. It is located on the right side of the abdomen underneath the liver. The gallbladder's function is to store bile, concentrate it, and release it during digestion. Bile is supposed to retain all of its chemicals...
in solution, but commonly one of them crystallizes and forms sandy or gravel-like particles, and finally gallstones. The formation of gallstones causes gallbladder disease (cholelithiasis).
Chemicals in bile will form crystals as the gallbladder draws water out of the bile. The solubility of these chemicals is based on the concentration of three chemicals: bile acids, phospholipids, and cholesterol. If the chemicals are out of balance, one or the other will not remain in solution. Dietary fat and cholesterol are also implicated in crystal formation.
As the bile crystals aggregate to form stones, they move about, eventually occluding the outlet and preventing the gallbladder from emptying. This blockage results in irritation, inflammation, and sometimes infection (cholecystitis) of the gallbladder. The pattern is usually one of intermittent obstruction due to stones moving in and out of the way. Meanwhile, the gallbladder becomes more and more scarred. Sometimes infection fills the gallbladder with pus, which is a serious complication.
Occasionally, a gallstone will travel down the cystic duct into the common bile duct and get stuck there. This blockage will back bile up into the liver as well as the gallbladder. If the stone sticks at the ampulla of Vater (a narrowing in the duct leading to the pancreas), the pancreas will also be blocked and will develop pancreatitis.
Gallstones will cause a sudden onset of pain in the upper abdomen. Pain will last for 30 minutes to several hours. Pain may move to the right shoulder blade. Nausea with or without vomiting may accompany the pain.
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The narrated 3D animations shows the function of the gallbladder and explains how gallstones can be formed from cholesterol and bile salts. If gall stones block the outflow of bile from the gallbladder, a cholecystectomy (gallbladder removal) may need to be performed.
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Also known as cholelithotomy, gallstone removal is the medical procedure that rids the gallbladder of calculus buildup.
Surgery to remove the entire gallbladder with all its stones is usually the best treatment, provided the patient is able to tolerate the procedure. Over the past decade, a new technique of removing the gallbladder using a laparoscope has resulted in quicker recovery and much smaller surgical incisions than the six-inch gash under the right ribs that used to be standard. Not everyone is a candidate for this approach.
If a stone is lodged in the bile ducts, additional surgery must be done to remove it. After surgery, the surgeon will ordinarily leave in a drain to collect bile until the system is healed. The drain can also be used to inject contrast material and take x rays during or after surgery.
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And in urology, it could be drugs or devices for bladder and prostate problems.
-David Pyott
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