Korean J Urol.
1982 Apr;23(2):143-148.
Chemical Analysis on Urinary Calculi
- Affiliations
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- 1Department of Urology, College of Medicine, Chungnam National University, Daejon, Korea.
Abstract
- A clinical study was made on 103 cases of urinary calculi among the number of 464 inpatients during 2 years and 8 months from January 1977 to August 1979, and chemical analysis was performed on 80 cases of urinary calculi which were collected. The results were as followings; 1. The incidence of urinary calculi was 22.2% in inpatients, and male to female ratio was approximately 1.9 : 1. and 81.6% of the patients of urinary calculi were distributed in 20 to 49 years old. 2. The location of urinary calculi were ureter 53.4%. kidney 30.1%, bladder 13.6% and urethra 2.9%. and upper urinary tract calculi was 83.5% and lower urinary tract calculi was 16.5%. The most common size was 1.0-2.9cm (68.8%), and below 0.9cm and above 6.0cm in its diameter were 5% respectively. 3. The results of chemical analysis of 80 urinary calculi revealed oxalate salt in 72.5%. phosphate salt in 70.0%, and single composition was 22.5%, Among the upper urinary tract calculi, oxalate salt were 60.0%, and phosphate salt were 51.3%. but in lower urinary tract, especially in bladder stones, ammonium salt were 83.3%. 4. The calculi which composed with ammonium salt were closely related with infection than other composed calculi.
