Pediatric urinary tract infections.

Factors determining the likelihood of urinary tract infection in children include host susceptibility, such as the presence of obstructive uropathy, neuropathic bladder or dysfunctional voiding. Bacterial virulence, as in infection by fimbriated Escherichia coli, is also a factor. With a few exceptions, diagnostic evaluation should be performed following the first infection. Early aggressive therapy has the goal of preserving renal function.