Biochemical and bacteriological study on renal stone

الملخص EN

Results of studying 203 calculi.taken from 203 patients showed that the males are more affected than females with a proportion of 1.7 : 1.

The age group (40 - 49 yrs) was the most affected followed by age group (50 -59 yrs).

Calcium calculi made the greatest constitution of calculi in proportion of 89.63% of the renal stones.

Six bacterial species were isolated from culture of 203 stones comprised the following: Proteus mirabilis, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumonia, and Citrobacter freundii.

However, P.aeruginosa made the greatest proportion about 67.97 % of the total stones number, while 40 stones did not yield a growth of any bacteria.

Even though external layers and nidi of the stones showed the same bacterial species, culture of pelvis urine did not yield bacterial growth