| Objective: To analyze the chemical composition of urinary tract stones in Taiyuan area and toprovide reference for the prevention and treatment of urolithiasis combining the age and sexstructures, the characteristics of compositions of upper and lower urinary tract stones, and thedifferences and similarities in the composition of urinary tract stones between the urbanpopulation and the rural population.Methods: 312 samples of urinary tract stone discharged after the extracorporeal shock wavelithotripsy or removed from the inpatients through surgery in different hospitals of Taiyuan areafrom January 2010 to January 2012 were collected and analyzed comparatively combiningrelevant clinical data.Results: Of the 312 cases of urinary tract stones, calcium oxalate + carbonate apatite stonesaccounted for 42.0%, calcium oxalate + hexahydrate magnesium ammonium phosphate +carbonate apatite stones 6.4%, calcium oxalate stones 38.1%, xanthine calculi 1.0%, hexahydratemagnesium ammonium phosphate stones 2.2%, carbonate apatite stones 3.8%, cystine stones1.9% and anhydrous uric acid stones 1.6%. The incidence of urinary tract stones was higher inmale than in female, with the male to female ratio of 2.67:1. The ages of sampled patients werebetween 16-84 years old. The upper urinary tract stone accounted for 76.6% and the lowerurinary tract stone 23.4%, with the upper to lower ratio of 3.2:1. 180 cases were urban patientsand 132 rural, with the urban to rural ratio of 1.36:1.Conclusion: Understanding the chemical composition and the distribution of the urinary tractstones in local areas can provide scientific basis for the prevention of stone formation andrecurrence and for the guidance of stone treatment. |
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