Abstract
The stones removed from 273 patients (220 males, 53 females) with bladder stones and 27 patients with urethral stones (males) were analyzed by infrared spectroscopy. Of these stones 50.0% contained magnesium ammonium phosphate (MAP), 39.9% calcium (oxalate and/or phosphate), 9.4% uric acid (urate), and 0.7% cystine. The disorders associated with bladder stones were prostatic hyperplasia and cancer (47.8%), neurogenic bladder (11.8%), urethral stricture (3.6%) and so on in males, and neurogenic bladder (48.1%), after operation of uterus (29.0%), bladder cancer (5.7%) and so on in females. Urinary infections were complications in 59.3% of patients with MAP stones, 41.2% with urate stones and 20.0% with calcium stones. The most often isolated bacteria from the infected urine were of the Proteus species.
MeSH terms
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Adolescent
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Adult
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Aged
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Aged, 80 and over
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Bacteriuria / complications
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Bacteriuria / microbiology
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Calcium Oxalate / analysis
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Calcium Phosphates / analysis
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Chi-Square Distribution
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Child
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Child, Preschool
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Cystine / analysis
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Female
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Humans
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Magnesium Compounds / analysis
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Male
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Middle Aged
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Phosphates / analysis
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Prostatic Hyperplasia / complications
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Spectrophotometry, Infrared
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Struvite
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Urethral Diseases / complications
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Urethral Diseases / metabolism
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Uric Acid / analysis
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Urinary Bladder Calculi / chemistry
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Urinary Bladder Calculi / complications
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Urinary Bladder, Neurogenic / complications
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Urinary Calculi / chemistry*
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Urinary Calculi / complications
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Urinary Tract Infections / complications
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Urologic Diseases / complications*
Substances
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Calcium Phosphates
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Magnesium Compounds
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Phosphates
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alpha-tricalcium phosphate
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tetracalcium phosphate
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Calcium Oxalate
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Uric Acid
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Cystine
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calcium phosphate, monobasic, anhydrous
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calcium phosphate
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Struvite
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calcium phosphate, dibasic, anhydrous