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Acute uric acid nephropathy is caused by deposition of uric acid crystals within the kidney interstitium and tubules, leading to partial or complete obstruction of collecting ducts, renal pelvis, or ureter. This obstruction is usually bilateral, and patients follow the clinical course of acute kidney failure.
[4] [13] Rasburicase is a synthetic urate oxidase enzyme and acts by degrading uric acid. No current guidelines endorse the concurrent use of allopurinol and rasburicase. [16] [17] It is not recommended to alkalinize urine in the management of TLS: although doing so increases the solubility of urste, it also creates calcium phosphate crystals ...
Saturation levels of uric acid in blood may result in one form of kidney stones when the urate crystallizes in the kidney. These uric acid stones are radiolucent, so do not appear on an abdominal plain X-ray. [57] Uric acid crystals can also promote the formation of calcium oxalate stones, acting as "seed crystals". [58]
Crystals that can be found in normal urine include uric acid, monosodium urate, triple phosphate (ammonium magnesium phosphate), calcium oxalate, and calcium carbonate. [124] Crystals can also appear as poorly defined aggregates of granular material, termed amorphous urates or amorphous phosphates (urates form in acid urine while phosphates ...
By decreasing plasma uric acid levels, help dissolve these crystals, while limiting the formation of new ones. However, the increased uric acid levels in urine can contribute to kidney stones . Thus, use of these drugs is contraindicated in persons already with a high urine concentration of uric acid ( hyperuricosuria ).
Crystallopathy is a harmful state or disease associated with the formation and aggregation of crystals in tissues or cavities, [1] [2] or in other words, a heterogeneous group of diseases caused by intrinsic or environmental microparticles or crystals, promoting tissue inflammation and scarring.
Gout (/ ɡ aʊ t / GOWT [7]) is a form of inflammatory arthritis characterized by recurrent attacks of pain in a red, tender, hot, and swollen joint, [2] [8] caused by the deposition of needle-like crystals of uric acid known as monosodium urate crystals. [9] Pain typically comes on rapidly, reaching maximal intensity in less than 12 hours. [5]
Crystalluria refers to crystals found in the urine when performing a urine test. Crystalluria is considered often as a benign condition and as one of the side effects of sulfonamides and penicillins. The main reason for the identification of urinary crystals is to detect the presence of the relatively few abnormal types that may represent a ...