Single-Center Study Of Analysis Of Constituent Of Urinary Calculi Of Urolithiasis In Chongqing(Report Of 839 Cases)

Objective: To explore the characteristics of the chemical composition of urinary calculi in Chongqing and to provide clinical evidence for prevention and treatment of urolithiasis.Methods: 839 samples of urolithiasis were collected and analyzed with infrared spectroscopy and the basis of relevant clinical data was analyzed.Results: 55.30% patients from the urban while 44.70% from the rural.The main components of calculi in districts with number?40 are calcium oxalate monohydrate,dahllite and calcium oxalate dihydrate.All the calculi including 558 cases of mixed components and 281 cases of single component,the former composition mode including �calcium oxalate monohydrate+dahllite�,the latter including �calcium oxalate monohydrate+dahllite+calcium oxalate dihydrate�.In gender comparison,the proportion of six ammonium magnesium phosphate in female patients(14.81%)was significantly higher than that of male patients(4.61%).In the environmentalcomparison,the percentages of calcium oxalate dihydrate and dahllite in urban patients(45.67% and 61.67%)were significantly higher than those in rural patients(35.98% and 51.88%).In the comparison between first onset and recrudesce,dahllite in the first onset patients(56.46%)was significantly lower than that of the recurrent patients(65.35%).In the comparison of infection,the six ammonium magnesium phosphate in the infected group(12.33%)was significantly higher than that in the non infected group(5.27%).In the comparison of duration,dahllite in patients with long duration(63.61%)was significantly higher than that of short duration(56.18%).41-60 years old patients accounted for the highest proportion of age(55.54%),followed by 31-40 years old patients(14.30%)and 61-70 years old patients(17.28%).Conclusion: Urinary calculi in our study are mainly composed of mixed components,the main components of which are calcium oxalate(including calcium oxalate monohydrate and calcium oxalate dihydrate)and dahllite.Calculi with mixed components are more common than single component stones.Male patients were more than female patients,while six ammonium magnesium phosphate was more common in female patients.Urban patients were more than rural patients,and calcium oxalate dihydrate as well as dahllite were more common in urban patients.Patients with first onset was more frequent than recurrent patients,and dahllite was more common in recurrent patients.The infected patients was less than thenon infected patients,and the six ammonium magnesium phosphate was more common in the patients with infection.Patients with short duration was more than that with long duration,and dahllite was more common in the patients with long duration.The age of patients is mainly concentrated in 30-70 years old.