Chemical compositions of 300 lower urinary tract calculi and associated disorders in the urinary tract.
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.
Takasaki
E
E
Department of Urology, Dokkyo University School of Medicine, Tochigi, Japan.
Suzuki
T
T
Honda
M
M
Imai
T
T
Maeda
S
S
Hosoya
Y
Y
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001437:Bacteriuria / Q000150:complications / Q000382:microbiology; D002129:Calcium Oxalate / Q000032:analysis; D002130:Calcium Phosphates / Q000032:analysis; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D003553:Cystine / Q000032:analysis; D005260:Female; D006801:Humans; D017616:Magnesium Compounds / Q000032:analysis; D008297:Male; D008875:Middle Aged; D010710:Phosphates / Q000032:analysis; D011470:Prostatic Hyperplasia / Q000150:complications; D013055:Spectrophotometry, Infrared; D000069877:Struvite; D014522:Urethral Diseases / Q000150:complications / Q000378:metabolism; D014527:Uric Acid / Q000032:analysis; D001744:Urinary Bladder Calculi / Q000737:chemistry / Q000150:complications; D001750:Urinary Bladder, Neurogenic / Q000150:complications; D014545:Urinary Calculi / Q000737:chemistry* / Q000150:complications; D014552:Urinary Tract Infections / Q000150:complications; D014570:Urologic Diseases / Q000150:complications*
D002130:Calcium Phosphates; D017616:Magnesium Compounds; D010710:Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; D002129:Calcium Oxalate; D014527:Uric Acid; D003553:Cystine; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; D000069877:Struvite; C485829:calcium phosphate, dibasic, anhydrous