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Renal Hemodynamics in Patients with Obstructive Uropathy Evaluated by Color Doppler Sonography by Karadeniz, Tahir; Topsakal, Medih; EksioÄlu, Ali; Ariman, Ahmet; Basak, DoÄan is a Medicine article available to read on EtoBox.

What is Renal Hemodynamics in Patients with Obstructive Uropathy Evaluated by Color Doppler Sonography about?

## Objectives: Prior animal studies have shown through direct pressure measurements that there is a definite rise in the renal vascular resistance in obstruction. therefore intrarenal hemodynamic changes can be determined by the vascular impedance expressed as pulsatility and resistive indexes (pi and ri) obtained from the doppler waveforms of intrarenal arteries. we investigated whether various degrees of obstruction result in different hemodynamic responses according to color doppler sonography. ## Methods: 22 kidneys with varied degrees of hydronephrosis and 19 normal kidneys were examined. the pulsatility and resistive index of doppler waveforms from interlobar arteries were obtained. the grade of hydronephrosis was based upon the width of parenchyma. ## Results: The mean resistive index in the study and controls were 0.70 +/- 0.07 and 0.60 +/- 0.03, respectively. the difference was significant (p 0.005). significant difference was also noticed in the parenchymal widths between both groups (p < 0.001). ## Conclusion: It appeared that intrarenal color doppler sonography can provide physiologic information reflecting renal vascular resistance status by means of an easily obtain

Who reads Renal Hemodynamics in Patients with Obstructive Uropathy Evaluated by Color Doppler Sonography?

Author

Karadeniz, Tahir; Topsakal, Medih; EksioÄlu, Ali; Ariman, Ahmet; Basak, DoÄan

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0302-2838)

Published

1996

Language

EN

Field

Medicine (Health Sciences)