title: [Clinical analysis of urolithiasis in Poh Ai Hospital of I-Lan, Taiwan, R.O.C.--a comparative study with urolithiasis in Japan].
abstract: Between August 1987 and December 1990, 546 patients were admitted to the department of Urology at the Poh Ai Hospital of I-Lan, Taiwan, R.O.C. for the treatment of urinary stones. These urinary stone cases accounted for 50 to 60% of all urology patients admitted. The incidence of urolithiasis in I-Lan was estimated at 147/100,000 population in 1990. There were 402 male patients and 144 female patients, The male to female ratio was 2.8: 1. There were 450 upper urinary tract stones (kidney, ureter) in 314 males and 136 females, and 79 lower urinary tract stones (bladder, urethra) in 72 males and 7 females. The ratio of upper to lower urinary tract stones was 6:1. Endourological treatments such as percutaneous nephrolithotripsy and transurethral ureterolithotripsy have increased rapidly in recent years. A summary of the present analysis for composition of 365 stones follows. The most frequent type was calcium-containing stone (92.3%), followed by infection stone (4.7%), then uric acid (UA) stone (3.0%). There were no UA stones found in the female patients. According to urinalysis criteria of more than 10 WBC/HPF (x 400), pyuria was found in 67 cases of 334 metabolic stones (20.1%), and 11 cases of 17 infection stones (67.7%). There were neither pediatric case of stone formation nor cystine stones.
authors.affiliation: Department of Urology, Lotung POH AI Hospital.
authors.forename: F S
authors.initials: FS
authors.lastname: Lin
authors.forename: S S
authors.initials: SS
authors.lastname: Wang
authors.forename: T S
authors.initials: TS
authors.lastname: Hsieh
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: T C
authors.initials: TC
authors.lastname: Tsai
authors.forename: T C
authors.initials: TC
authors.lastname: Hsu
authors.forename: H
authors.initials: H
authors.lastname: Takeuchi
authors.forename: O
authors.initials: O
authors.lastname: Yoshida
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002129:Calcium Oxalate / Q000032:analysis; D002648:Child; D006801:Humans; D007564:Japan; D008875:Middle Aged; D012737:Sex Factors; D013624:Taiwan / Q000453:epidemiology; D014545:Urinary Calculi / Q000737:chemistry / Q000453:epidemiology* / Q000628:therapy
chemical_list: D002129:Calcium Oxalate