Abstract：【Objective】To study the clinical characteristics and composition of urinary calculi in children of Hunan area.【Methods】Data of 163 cases of children underwent surgery in our hospital from June 2013 to October 2014 were collected, and their stone specimens were obtained, and infrared spectrum analysis of stone was performed. The clinical data of patients were retrospectively analyzed.【Results】The ratio of male to female was about 3.7:1 in 163 cases. 115 (70.6%) patients got upper urinary calculi, 36 cases (22.1%) had lower urinary calculi, 12 cases (7.4%) were complicated with upper and lower urinary tract stones. Location ratio on left, right and bilateral upper urinary tracts were 41 cases (25.2%), 57 cases (35%) and 29 cases (17.8%) respectively. Stone composition showed that 110 cases (67.5%) contained calcium oxalate, and 62 (38%) contained calcium carbonate, 23 cases (14.1%) contained with infectious components, 53 cases (32.5%) contained uric acid, 14 (8.6%) contained cysteine, and 3 had other kinds of calculus. 77 cases (47.2%) were single component stones, and the calcium oxalate stone was the most common one, followed by simple uric acid ones. 86 cases (52.8%) were mixed stones, while calcium oxalate + calcium carbonate took the most common, followed by oxalic acid + uric acid. The main part of the site is in the upper urinary tract.【Conclusion】The occurrence of urinary stones in children of Hunan area covered all ages, mainly in male. In the stone components, calcium oxalate is the most , followed by calcium carbonate and uric acid. About 52.8% of the urinary calculi in children are composed of two or more ingredients of a mixture.
2016, Vol. 33 
