Routine Screening for the Functional Asymmetry of Potential Kidney Donors

Oh, Chang‐Keun; Yoon, Seokyoung; Lee, B.M.; Kim, J.H.; Kim, S.J.; Kim, H.; Shin, Gyu‐Tae

doi:10.1016/j.transproceed.2006.06.022

Cited by 15 publications

(7 citation statements)

References 7 publications

(4 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To our knowledge, there is no reported study dealing with such a comparison. Although some previous studies have estimated an asymmetric renal blood flow between right and left kidneys in normal healthy individuals, 21 and some others have postulated that there may be possible functional asymmetry between the 2 kidneys, 22 we found no difference between the RI values of the right remnant kidney and the left remnant kidney.…”

Section: Discussioncontrasting

confidence: 92%

Resistive Index of the Remaining Kidney in Allograft Kidney Donors

Nekouei

Ahmadnia²,

Abedi³

et al. 2012

Exp Clin Transplant

View full text Add to dashboard Cite

Objectives: Kidney transplant is the last resort in patients with end-stage renal disease. In living-kidney donors undergoing nephrectomy for transplant; however, morphologic and hemodynamic changes may occur in the remaining kidney with time. If there would be such a change, then it may alter the diagnostic utility of Doppler ultrasound in evaluating diseased conditions of the solitary kidney. Using Doppler ultrasound, this study sought to determine whether there are hemodynamic changes in the remaining kidney. Materials and Methods: Forty-one patients (38 men, 3 women) for kidney donation were examined using a MyLab 50 color Doppler apparatus with a convey 3.5-to 5-MHz probe. Resistive index values of the main renal, interlobar, and interlobular arteries in the remaining kidney were assessed before, and at 7 and 90 days after nephrectomy. The size and parenchymal thickness of the remaining kidney also were measured before and after nephrectomy. Results: At day 90, a statistically significant increase (P < .001) in resistive index was seen at all levels, compared with before and 7 days after nephrectomy. No significant changes, however, could be noticed on the day 7, when compared with before the nephrectomy. Renal size and parenchymal thickness remained constant over the time studied. Conclusions: Although a statistically significant increase in resistive index values of the remaining kidney was seen 90 days after the nephrectomy, these values have remained within the normal limits of renal resistive index. So, our findings indicate that resistive index measurement is useful in assessing the diseased condition of the remaining kidney after removing the contralateral kidney.

show abstract

Section: Discussioncontrasting

confidence: 92%

Resistive Index of the Remaining Kidney in Allograft Kidney Donors

Nekouei

Ahmadnia²,

Abedi³

et al. 2012

Exp Clin Transplant

View full text Add to dashboard Cite

show abstract

“…They found that the left kidneys showed greater function. The average fraction of Ccr of left kidneys was 57.8±10.99 ml/min/1.73 m 2 compared with right kidneys at 52±11.63 ml/min/1.73 m 2 [17] . Van Onna et al investigated the bilateral renal blood flow by 133 Xenon washout technique.…”

Section: Discussionmentioning

confidence: 81%

Renal Water Molecular Diffusion Characteristics in Healthy Native Kidneys: Assessment with Diffusion Tensor MR Imaging

et al. 2014

View full text Add to dashboard Cite

BackgroundTo explore the characteristics of diffusion tensor imaging (DTI) and magnetic resonance (MR) imaging in healthy native kidneys.MethodsSeventy-three patients without chronic kidney disease underwent DTI-MRI with spin echo-echo planar (SE-EPI) sequences accompanied by an array spatial sensitivity encoding technique (ASSET). Cortical and medullary mean, axial and radial diffusivity (MD, AD and RD), fractional anisotropy (FA) and primary, secondary and tertiary eigenvalues (λ1, λ2, λ3) were analysed in both kidneys and in different genders.ResultsCortical MD, λ2, λ3, and RD values were higher than corresponding medullary values. The cortical FA value was lower than the medullary FA value. Medullary λ1 and RD values in the left kidney were lower than in the right kidney. Medullary λ2, and λ3 values in women were higher than those in men. Medullary FA values in women were lower than those in men. Medullary FA (r = 0.351, P = 0.002) and λ1 (r = 0.277, P = 0.018) positively correlated with eGFR. Medullary FA (r = −0.25, P = 0.033) negatively correlated with age.ConclusionsRenal water molecular diffusion differences exist in human kidneys and genders. Age and eGFR correlate with medullary FA and primary eigenvalue.

show abstract

“…A number of clinicians recommend that functional asymmetry of the kidneys should be investigated preoperatively to determine which kidney should be donated and transplanted 13,14. In addition, considerable differences in renal blood flow (RBF) have been reported between the right and left kidneys in some previous investigations.…”

Section: Discussionmentioning

confidence: 99%

Are Doppler ultrasonography parameters symmetric between the right and left kidney?

Ansarin¹,

Bavil²,

Ghabili³

et al. 2010

IJGM

View full text Add to dashboard Cite

Background:Among numerous modalities applied for evaluation of kidney diseases, Doppler ultrasonography (DU) provides information about the hemodynamic status of the kidneys. Meanwhile, the variability in DU parameters of the right and left kidney is a matter of controversy. The aim of this study was to determine whether any difference exists between the DU indices of the right and left kidney.Methods:Retrospectively, we collected DU findings of 25 healthy potential renal transplant donors. All donors underwent renal DU and multidetector computed tomographic angiography before donor nephrectomy. DU indices, including peak systolic volume (PSV), resistive index (RI), pulsatility index (PI), end-diastolic volume (EDV), and acceleration time (AT), were recorded.Results:The median age of the donors was 27 (range 23–39) years. The median PSV, RI, EDV, and AT for the right kidney were 29 cm/sec, 0.59, 10.9 cm/sec, and 50 msec, respectively. For the left kidney, the median PSV, RI, EDV, and AT were, respectively, 26.8 cm/sec, 0.60, 10.6 cm/sec, and 43 msec. Among the DU indices, median PI of the right kidney was significantly different from that of the left kidney (1.02 versus 0.95, P = 0.01).Conclusion:In conclusion, the present study revealed that right kidney DU indices, except for PI, may not differ from those of the left kidney.

show abstract

Routine Screening for the Functional Asymmetry of Potential Kidney Donors

Cited by 15 publications

References 7 publications

Resistive Index of the Remaining Kidney in Allograft Kidney Donors

Resistive Index of the Remaining Kidney in Allograft Kidney Donors

Renal Water Molecular Diffusion Characteristics in Healthy Native Kidneys: Assessment with Diffusion Tensor MR Imaging

Are Doppler ultrasonography parameters symmetric between the right and left kidney?

Contact Info

Product

Resources

About