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Query: UMLS:C0451641 (urolithiasis)
 3,973 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The increasing incidence of urolithiasis makes it important to report about 34 children with urolithiasis seen between 1976 and 1986 at the Department of Pediatrics, University Medical School Vienna. At the time of the first diagnosis 59 percent of the patients were less than 7 years of age; 62 percent of our patients were males. Recurrent chronic urinary tract infection in 32 percent, metabolic disorder (secondary hyperoxaluria 5, idiopathic hypercalciuria 3, cystinuria 2, hyperuricuria 2) in 27 percent were evaluated; in 13 patients the origin of calculi was idiopathic. Most infectious stones contained magnesium ammonium phosphate, most idiopathic stones calcium oxalate. In 21 patients (62%) surgical treatment, in one patient extracorporal shock wave lithotripsie was realized. Adequate metaphylaxis (general, dietetic, medicementous) can lower the rate of occurrence of stone formation.
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PMID:[Urolithiasis in pediatrics: analysis of 34 patients]. 368 52

In about 20% of the cases, urolithiasis is directly linked to chronic urinary tract infection by urea splitting bacteria, essentially Proteus mirabilis. The stones are generally composed of struvite and carbonate apatite which usually occur as staghorn calculi feared because of their obstructive and infectious consequences that cause important renal damage. The case of a 48 year-old woman with chronic urinary infection is described whose right kidney showed a staghorn calculus essentially composed of newberyite, a very rare constituent of urolithiasis, and whose left kidney contained three carbonate apatite calculi. Clinical and technical examinations, relations between the two mineral constituents are discussed in this paper with a review of the literature on the subject.
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PMID:[Presence of newberyite in the right kidney and carbonated apatite in the left kidney in a patient with recurrent urinary infections]. 396 Feb 56

In some 20% of cases urolithiasis is directly linked to chronic urinary tract infection by urea-splitting bacteria and essentially Proteus mirabilis. The stones are generally composed of struvite and carbonate apatite, which usually occur as the staghorn calculi feared because of their obstructive and infectious consequences which cause important renal damage. A case is described of newberyite calculus in a woman with chronic urinary infection. Newberyite is thought to be a breakdown product of struvite in particular physico-chemical conditions, and is a very rare constituent of urolithiasis. X-ray diffraction and infrared spectroscopy were used to identify the constituent. Clinical and technical investigations are briefly described, and the literature is reviewed.
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PMID:[Coralliform calculi and recurrent urinary infection: a case of newberyite calculi (MgHPO4.3H2O)]. 639 27