Biochemical and bacteriological study on renal stone

ABSTRACT

Results of studying 203 calculi taken from 203 patients showed that the males are more affected than females with a proportion of 1.71. 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, Staphylococciis aureus, Psendomonas 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.