A clinical study of calcium oxalate monohydrate and calcium oxalate dihydrate stones / 中华泌尿外科杂志

Objective To study the mechanism of calcium oxalate monohydrate and calcium oxalate dihydrate stone formation. Methods 258 urinary stones were examined by infrared spectrophotometry, from which, 20 patients with calcium oxalate monohydrate stones (COM) and 10 patients with calcium oxlate dihydrate stones (COD) were selected for the study of some urinary parameters. The statistical study was carried out with SPSS t test . Results The urinary excretions of both calcium and phosphate varied obviously between the two groups of patients.In the COM group,the urinary calcium was (4.83?1.98)mmol/24h whereas in COD group it was (9.88?4.28)mmol/24h,( P