Renal colic и probably one of the most painful events that can happen.
It strikes without warning, causing pain that often is decrypted as worse than childbirth, a fracture of a gunshot wound, a burn or pain of surgery.
Renal colic affects approximately 1.2 million people every year, and about 1% of the causes of hospitalization. The calculations, which are the cause, are a problem that can occur at any level of the urinary tract, mainly formed in the kidney, with a frequency that reaches 12% for men, about twice that for women, and a peak incidence around 35 years.
Then the risk of recurrence, then close to 50% in a period of time ranging from 5 to 7 years. И renal colic usually resulting in the mobilization of a kidney stone and usually manifests itself with violent pain in the right or left lumbar region, radiating to the respective side and then to the genitals, often и also nausea and vomiting.
Kidney stones are distinguishable calculations calcareous (containing calcium), which are radio opaque, and non-calcareous.
The present calculations with greater frequency (60, 80%) are made of calcium oxalate or calcium phosphate, and are caused, hyperparathyroidism or too high synthesis of vitamin D3.
With a frequency of 10-15% are found then a striate and ammonium magnesium phosphate, caused by chronic and recurrent urinary infections, slightly less frequent calculations are formed by uric acid crystals (5-10%), while others Cases are much more rare, such as kidney stones (1%).
You have the formation of kidney stones (nephrolithiasis) when the urinary concentration of a solute exceeds its ability to remain in solution. So the calculations are formed when и excess of an ion in the urine or when the physical and chemical conditions of urine (eg, PH) interferes with the solubility of the substance causing the precipitation and deposition calculations.
E 'known for a long time and a family predisposition to hereditary formation. Many of the inborn metabolic problems such as gout, are good examples of hereditary disease characterized by excessive production of substances that form stones.
urinary calcium excretion in amounts greater than 200mg in a 24-hour urine collection, or more than 4 mg / kg in 24 hours. the most common metabolic pathway in patients with calcium kidney stones and has various causes.
An excessive absorption of calcium from the intestine и because of a too high amounts of circulating calcium that is filtered in the kidney, but increased calcium excretion in the urine can be caused by a problem in the absorption level of the tubules kidney. Although hyperparathyroidism may be a risk factor for this type of calculations.
Uric acid и the end product of purine metabolism and и is derived from external sources (diet) that produced by normal cellular metabolism. Chronic metabolic acidosis can lead to increased excretion of uric acid salts and the formation of kidney stones, but usually the cause of kidney stones uric acid и a low pH of urine.
Kidney stone is condition for which you have urinary oxalate than 45mg/groin, and may be due to an increase in intestinal absorption of the ileum caused by diseases (such as Cohn’s disease), or other causes, including the disappearance from the intestine of form genes, a bacterium that Lisa oxalate produced or introduced into the diet, decibel such as spinach, chocolate, soy-based foods, and others.
Citrate excreted in the urine footprint soluble complex with calcium which inhibits the formation of crystals. A decreased excretion of citrate и source of risk for stone formation.
The a hereditary disease. For a metabolic defect occurs a lack of transport of four dibasic amino acids (arginine, lysine, ornithine), which causes a significant increase in urinary excretion of four amino acids. Precipitates thus formed crystals of seamless continuity. clinically characterized not only by a recurrent kidney stones, even with chronic pyelonephritis and hypertension.
Infections
Then there are the calculations made up of, a set of magnesium, ammonium and phosphorus. These calculations are produced by certain bacteria mainly of the Proteus, which produce an enzyme, urease, which breaks down urea (a constituent of urine) into ammonia and bicarbonate. This reaction makes it very alkaline urine, favoring the precipitation of striate crystals.
This type of calculation и more common in females and, unlike other calculations, which are formed by an excessive concentration of insoluble salts, the calculations of striate are therefore the result of certain infections, which will be prevented or at least readily recognized and treated to block, from the outset, the risk of stone formation by continuous antibiotic therapy.
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