Ces radiol. 2014, 68(4):323-326

Frequency and diagnostics of unilateral and bilateral kidney involvement in acute pyelonephritis in childrenOriginal article

Zuzana Lysá, Oľga Červeňová, Andrea Černianska, Daniela Miklovičová

I. Detská klinika LF UK a DFNsP, Bratislava

Aim: Early diagnosis and treatment of infections of the upper urinary tract in children is difficult and very important with regard to the prognosis of the disease. The aim of our study was to verify the possibility of using measurements of resistivity index during acute pyelonephritis in the diagnosis of disease and to determine the extent of renal involvement.

Methods: 53 children were eligible in the group (43 girls, 10 boys) at the age of 0-19 years at the first attack of acute pyelonephritis. The patients were divided into three age groups - children up to 4 years, 4 to 7 years and children older than 7 years and they were compared with a group of 29 children without symptoms of acute infection and normal kidney function. Ultrasonography examination of uropoietic tract oriented to kidney morphology was performed in all patients up to 72 hours from the beginning of hospitalization and RI was measured by beans of Doppler sonography. In all the three age categories the authors detected significantly higher values of RI in kidneys affected by inflammation as compared with kidneys of the control group.

Results: In 24 children (64.8%) was a unilateral inflammatory process and in 13 children (35.2%) was a bilateral process.

Conclusion: Based on the results it may be concluded that the measurement of RI has significant benefits in the diagnosis of equivocal cases of acute pyelonephritis, as well as the possibility of determining the extent of renal involvement and can be recommended as a complementary diagnostic procedure.

Keywords: acute pyelonephritis, bilateral pyelonephritis, Doppler sonography, resistance index, unilateral pyelonephritis

Accepted: September 15, 2014; Published: December 1, 2014  Show citation