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Kidney stones are primarily composed of calcium salts, with the most common being calcium oxalate (70-80%), followed by calcium phosphate and uric acid. When urine contains high concentrations of these ions, they can form crystals and eventually stones. [41] The formation of kidney stones occurs in three main phases: [41]
[citation needed] A large "staghorn" kidney stone may block all or part of the renal pelvis. The size of the renal pelvis plays a major role in the grading of hydronephrosis . Normally, the anteroposterior diameter of the renal pelvis is less than 4 mm in fetuses up to 32 weeks of gestational age and 7 mm afterwards. [ 2 ]
In those with certain structural problems of the urinary tract or kidney stones, surgery may be required. [1] [3] Pyelonephritis affects about 1 to 2 per 1,000 women each year and just under 0.5 per 1,000 males. [5] [7] Young adult females are most often affected, followed by the very young and old. [2]
More than half a million people every year are admitted to the hospital for kidney stone problems, ... Kidney stones have been found in children as young as the age of five. This is mostly related ...
Kidney stones (nephrolithiasis) are a relatively common and particularly painful disorder. A chronic condition can result in scars to the kidneys. The removal of kidney stones involves ultrasound treatment to break up the stones into smaller pieces, which are then passed through the urinary tract. One common symptom of kidney stones is a sharp ...
Kidney stones are one of the most painful conditions known. After X-rays and other tests, doctors returned their diagnosis: She had a kidney stone. Alonso was given IV painkillers and sent home ...
This illustration demonstrates the normal kidney physiology, including the Proximal Convoluted Tubule (PCT), Loop of Henle, and Distal Convoluted Tubule (DCT). It also includes illustrations showing where some types of diuretics act, and what they do. Renal physiology (Latin renes, "kidneys") is the study of the physiology of the kidney.
More children around the U.S. are getting kidney stones, a condition now wrongly associated with “white, middle-aged men”, experts say. The stones are pebble-like clusters of minerals and ...