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Urinary stone disease in the first year of life: is it dangerous?
[cystinuria]
We
have
evaluated
the
clinical
,
radiological
and
metabolic
features
of
infantile
urolithiasis
(
UL
)
.
We
have
reviewed
the
medical
records
of
93
children
who
were
diagnosed
as
having
UL
before
1
year
of
age
.
We
recorded
patient
demographics
,
the
age
at
diagnosis
,
presenting
symptoms
,
family
history
,
the
localizations
and
dimensions
of
stones
,
urinary
metabolic
examinations
,
as
well
as
physical
,
laboratory
,
and
radiologic
findings
.
Our
secondary
objective
was
to
compare
some
features
of
this
group
with
those
of
older
children
with
UL
followed-up
in
the
same
clinic
which
were
previously
reported
.
We
evaluated
93
children
referred
to
our
pediatric
nephrology
clinics
.
A
family
history
of
UL
was
56
.
2
%
in
the
study
group
.
Resolution
of
stones
was
observed
in
30
.
1
%
of
the
cases
.
Urinary
tract
infections
(
UTIs
)
were
detected
in
65
.
9
%
of
females
and
46
.
2
%
of
males
.
At
least
one
urinary
metabolic
abnormality
was
found
in
79
.
5
%
of
all
the
children
.
Most
commonly
seen
metabolic
abnormality
was
hypercalciuria
.
In
all
patients
stones
were
located
in
kidneys
except
one
infant
who
had
an
ureteral
stone
together
with
a
kidney
stone
.
Fifteen
(
16
.
1
%
)
children
had
an
accompanying
systemic
disorder
.
Among
pediatric
urinary
stone
diseases
infantile
UL
can
be
regarded
as
a
separate
clinical
entity
.
Coexistence
of
systemic
disorders
and
anatomic
anomalies
at
high
frequencies
may
indicate
a
role
of
distinct
pathogenetic
mechanisms
.
In
addition
,
high
rates
of
UTIs
and
metabolic
abnormalities
in
this
age
group
justify
screening
for
these
parameters
during
follow-up
of
these
children
.
Diseases
Validation
Diseases presenting
"secondary objective"
symptom
congenital toxoplasmosis
cystinuria
heparin-induced thrombocytopenia
phenylketonuria
primary effusion lymphoma
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