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Abnormalities of excretive system

An anatomic abnormality in the way the outlines the bladder and urethra. If VUR
kidneys, bladder and urethra are hooked is present the x-ray will show the dye
up, that can cause recurrent bladder backing up through the ureters into the
infections is present to children kidneys. The dye does not produces damage
sometimes. Three possible abnormalities the bladder or kidneys, and it is flushed
are: tight or posterior urethral valves, out quickly with urinating. This test is
vessico-ureteral reflux (VUR) and invasive and can be painful and scary for
abnormal kidneys or ureters. a child but it's the one that can detect
In the first case normally the valve or problems with the urethra and ureters.
sphincter keeps the bladder from emptying Unfortunately very little information
but sometimes they can be too tight or in about the kidneys is given by this test.
the wrong position. The bladder can not Intravenous pyelogram (IVP) involves
be empty completely and the urine can injected dye through an IV into the blood
back up and cause backpressure on the stream. Outlining the structure of the
kidneys. This can cause a dilation of the kidneys on x-ray is shown by the dye that
kidneys named hydronephrosis which can travels through the kidneys and into the
lead to serious kidney damage. Kidney urine. VUR or urethra problems can not be
damage can appear at newborns born from seen with this test.
in utero backpressure, or can develop Nuclear medicine scan shows the kidneys
during the first few months of life. in such a way that checks the kidney
Rarely this condition occurs in males, function and checks for scars in the
but does need to be diagnosed quickly. A kidneys.
weak urine stream is one clue to this In the case of abnormality presence some
problem. tests are recommended by doctor. So an
Vessico-ureteral reflux (VUR) occurs ultrasound and VCUG should be done in
where the urine tubes, called ureters, these instances: newborns who have a
from the kidneys empty into the bladder. single bladder infection, infants less
The urine from the bladder is prevented than one year of age who have a second
by one-way valve to go back up into the bladder infection and older children who
ureters and kidneys. The urine can go have had more than three or four
backwards and cause backpressure on the infections.
kidneys, or hydronephrosis at children A referral to a pediatric urologist or
which are born with immature ureter nephrologist is necessary when these
valves. Over time the backpressure can tests are normal, but the child continues
damage the kidneys. to have problems with infections. An IVP
There are very rare cases when the will be done if the specialist will
kidneys, or the tubes that drain them decide. A surgical specialist is called
into the bladder, can develop abnormally. urologist and a non-surgical specialist
The urine is prevented to drain properly is called nephrologist. If an abnormality
into the bladder and this can lead to on these tests appear doctor may
infections. recommend a specialist for appropriate
Different radiology tests are used to treatment.
look for structural problems involving A daily low-dose of antibiotics can be
the bladder and kidneys. Ultrasound is given to children who have recurrent
painless and non-invasive. If a bladder infections to control any
structural problem with the kidneys or bacteria that may get into the bladder.
ureters exists, or if any hydronephrosis Prophylactic antibiotics are used when
(back-pressure) is present ultrasound can children with known anatomic
show that. VUR or a urethral valve abnormalities make them prone to
problem cannot be found out with an infections, and when children without
ultrasound. abnormalities continue to have infections
Voiding Cysto-urethrogram (VCUG) is a despite all the above non-medical
test that involves restraining an infant prevention. Usually children will take an
or child, inserting a catheter through antibiotic for six to twelve months and
the urethra into the bladder, injecting a after treatment will come back to make
dye into the catheter, pulling out the other tests to see the result.
catheter, and allowing the infant to It is difficult for children to do these
urinate the dye back out. During the tests because they are not funny, but
procedure x-rays are taken. If any these can help to discover the problems
structural problem exists can be seen on which can be treated.
the x-ray with the help of the dye that




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