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Showing posts with the label extracorporeal shock-wave lithotripsy

Kidney Stones

Stones in the kidney or urinary tract (nephrolithiasis or urolithiasis, both synonymous) often present as a medical emergency. Those afflicted seek help because of excruciating pain and other complications. Though not common, there are various ways for these stones to form. The options for treatment, however, are generally the same. Formation of Stones Calcium stones, mainly calcium oxalate, are the most common type of renal calculus. They can form when one doesn't drink enough water, allowing calcium that would dissolve to instead precipitate and crystallize. They also form in association with conditions raising the blood calcium level, including hyperparathyroidism, cancer, vitamin D overdose, and sarcoidosis. Other factors involve oxalate and citrate. Too much dietary oxalate or conditions increasing intestinal absorption of oxalate can promote stone formation. Citrate plays a role when there is too little of it, because it normally binds calcium and prevents cry...