Epidemiology and Natural History of Urinary Tract Infections in Children

摘要: Recent retrospective surveys have supported previous investigations in demonstrating the incidence of UTI during infancy; 0.3% to 1.2% infants develop symptomatic first year life. Boys are more commonly infected 3 months After year, is much frequent among girls. Similarly, asymptomatic bacteriuria frequently detected boys than girls 12 Thereafter, decreases markedly but increases indicate that lack circumcision a risk factor for male infants. Recurrent common and asymptomatic. The most important microbiologic associated with E. coli causing acute pyelonephritis adherence mediated by P fimbriae. Other factors, such as capsule, lipopolysaccharide, aerobactin production, serum resistance, also determine invasiveness coli. Vesicoureteral reflux appears be an host predisposing UTI. Microbiologic factors determinants renal scarring under investigation.