الفهرس 
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Abstract
Urinary tract infection is one of the most common infections in the
pediatric age group and it comes after upper respiratory tract infections
and it may lead to change in the renal function and renal growth.
To reduce the number of patients with both end stage renal diseases
(ESRD) and cardiovascular diseases, effective screening and treatment
methods for CKD should be established.
In Egypt there are only few studies of asymptomatic bacteruria.
Therefore, screening for asymptomatic bacteruria has been attempted in
the hope that early detection and treatment of asymptomatic infection will
prevent morbidity of symptomatic infection.
The subsequent detection of anatomic abnormalities, also might
prevent upper tract damage (pyelonephritis, renal scarring and end stage
renal disease).
Urine analysis remains the best device for screening at the present
time and this is the method for which most data are available. Urine is
usually screened for nitrite test, catalase test, leukocyte esterase. Bacteria
may result in renal pathology but its origin is in lower urinary tract the
level. Nowadays dipsticks tests are widely used as the simplest and
cheapest method for detecting urinary abnormalities by nitrite test,
catalase test and /or leukocute esterase. Urine analysis is taken under the
microscope so urine analysis plays an important role in the detection and
diagnostic work up of patients with renal diseases.
There are several reasons why childhood urinary tract infection
could go unrecognized in primary care thus developing a risk of renal
scarring, may be that the child may present with non specific symptoms
especially fever that are documented as other routine acute illnesses
without excluding urinary tract infections, if the diagnosis is considered,
then time factor, difficulty in gaining parental cooperation and availability
of laboratory services are difficulties that can be overcome if a simple
reliable method distinguished children in whom urinary tract infection can
be confirmed.
Our study was carried out in Giza Governorate, from October 2009
to May 2009 to detect the prevalence of asymptomatic bacteruria among
primary school students in Giza Governorate. They were enrolled by
simple selection method after obtaining an informed consent from the
children’s parents and school managers. They were enrolled randomly
from their schools. Our study was conducted (10) primary schools. Those
attending primary schools were 1000 school children. Ages of the students
included in the study ranged from 6 to 12 years with a mean 9.32 ± 2.027
and they were 552 males (55.2%) and 448 females (44.8%).
Urinary screening was performed with dipstick test to all of the
studied students and then compared the results with urine culture and
identification of organism, 96 students (9.6%) were positive for nitrite test,
116 students (11.6%) were positive in catalase test, 90 students (9%) were
positive in leukocyte esterase, 113 students (11.3%) were positive in
nitrite and /or leukocyte esterase, 177 students (17.7%) were positive in
nitrite and /or catalase test, 181 students (18.1%) were positive in catalase
test and /or leukocyte esterase, 203 students (20.3%) were positive in
nitrite, leukocyte esterase and/or Catalase test, 60 students (6%) were
positive in urine culture.
Were subjected to urine culture. Urine culture was performed to1000
students (100%). It was positive in 60 students (6%) only of them. The
causative organisms were E. coli in 35 students (58.3%), Staphylococci in
13 students (21.67%) and Klebsiella in 3 students (0.05%), Enterobacteria
in 6 students (0.1%) Protus in 3 students.(0.05%).