Introduction:-
Urinary tract infection is the most common bacterial infection in pediatric
population. The upper urinary tract infection involves the kidney parenchyma and
may cause scarring and permanent damage.
The Ultrasonography of bladder and kidneys
enables to find children with anatomical anomalies.
Voiding cystourethrogram - is the test of choice to establish the presence of
vesicoureteral reflux, that is a major risk factor for future infections and scaring.
DMSA scintigraphy test - may be performed to determine acute pyelonephritis or to
investigate kidney scarring.
With the development of Doppler ultrasonography we can measure the Resistive Index, which is a sonographic value toassess the kidney function.
The normal value of resistive index is 0.6. and the normal upper limit is 0.7.
Increase of this value is related to: kidney artery stenosis, extreme hypertension,
infants, and intrinsic kidney disease.
Methods:-
In this work we want to measure if the Resistive Index can predict kidney scarring.
We followed after 71 cases of kids from 0 to 11 years old in the diagnosis of Urinary tract infection.
The diagnosis was made on the base of clinical presentation, laboratory blood analysis, urinary analysis and urinary cultures.
Conclusion:-
In the first group under 2 years old we found e medium correlation between the RI
and DMSA study. And there was a strong correlation between RI and cystography.
In the second group above 4 years we found a strong correlation between RI both to
DMSA and cystography.
