Relationship Between ‘Immediate’ Resistive Index Measurement After Renal Transplantation and Renal Allograft Outcomes

Mwipatayi, Bibombe P.; Suthananthan, Arul; Daniel, R.; Rahmatzadeh, Mitra; Thomas, Shane; Phillips, Michael; Vijayan, Vikram

doi:10.1016/j.transproceed.2016.09.043

Cited by 8 publications

(4 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This serial increase in RI was associated with delayed graft function, more severe ischemia-reperfusion injury, and the need for dialysis in the immediate post-operative period. This is consistent with studies that have shown RI elevation on immediate postoperative Doppler ultrasound as a predictor of acute tubular necrosis (ATN) and delayed graft function 2,3 . While most studies evaluate RI on a single early postoperative Doppler ultrasound, Moura-Neto et al 1 incorporated two serial measurements of RI over four weeks and evaluated interval change.…”

supporting

confidence: 91%

Serial changes in renal allograft resistive index

Chen

Sanyal

2020

Braz. J. Nephrol.

View full text Add to dashboard Cite

supporting

confidence: 91%

Serial changes in renal allograft resistive index

Chen

Sanyal

2020

Braz. J. Nephrol.

View full text Add to dashboard Cite

“…Taken together, these findings corroborate that the serial increase in RI is strongly associated with the development of a more severe type of ischemia reperfusion injury. In line with these results, several studies suggest a relationship between increased RI and delayed graft function, acute rejection, histologic lesions on biopsy, and transplant failure 7,16,[21][22][23][24][25] . In agreement with the results of the current study, in which patients with decrease in RI (Group I) had better SCr results and lower likelihood to require dialysis in the observed period, other studies found a direct relationship between RI and serum creatinine 8,26,27 .…”

Section: Discussionmentioning

confidence: 66%

Determinants of the serial changes in measurements of renal allograft Doppler resistive index in the first postoperative month

et al. 2020

View full text Add to dashboard Cite

Introduction: The role of single Doppler-derived renal resistive index (RI) in renal allograft management is still a controversial issue, however detection of changes in serial duplex scanning has been reported as more valuable. This study aimed to test the hypothesis that early change in RI following transplantation may be related to factors associated with delayed graft function (DGF). Material and methods: 113 patients were included, in whom two RI measurements were performed within 30 days post-transplant. According to an RI change (equal to or more than 10%) in the second measurement, patients were assigned to decrease (Group I), no change (Group II), or increase (Group III) group. Results: 30 subjects had a decrease, 55 had no change, and 28 had an increase in the second RI measurement. The donors were younger in Group III in comparison to Group II. In comparison to Group I, Group III had a higher frequency of deceased donor, DGF, and presence of tubular necrosis and tubular vacuolization in peri-implantation biopsies. Conclusion: the increase of RI during the first weeks of the postoperative period seems to be associated with DGF and with tubular necrosis / tubular vacuolization in peri-implantation biopsies, likely related to ischemia reperfusion injury.

show abstract

“…An isolated elevated RI in a single kidney vessel is of limited value. However, elevated RIs > 0.8 are found in acute and chronic rejection and may indicate delayed graft function and poor graft outcome [ 12 ]. In adults, the association of an elevated RI with diabetic nephropathy and glomerulosclerosis has been shown [ 13 ].…”

Section: Duplex Sonographymentioning

confidence: 99%

“…In this study, elevated RI was also found to be a prognostic marker for patient survival in adults. Mwipatayi et al found that immediate RI measurements within 24 h after transplantation in patients with an RI > 0.8 were a strong predictor for both delayed graft function and transplant failure [ 12 ]. Other authors did not find a correlation of RI and graft outcome in the early post-transplant period within 6 to 12 months [ 21 – 23 ].…”

Section: Duplex Sonographymentioning

confidence: 99%

The diagnostic value of Doppler ultrasonography after pediatric kidney transplantation

Franke

2021

Pediatr Nephrol

View full text Add to dashboard Cite

Ultrasonography (US) plays a major diagnostic role in the pre- and post-transplant evaluation of recipient and donor. In most cases, US remains the only necessary imaging modality. After pediatric kidney transplantation, US can ensure immediate bedside diagnosis of vessel patency and possible postoperative non-vascular complications. Criteria for US diagnosis of kidney vessel thrombosis and stenosis in the transplant will be presented. Non-vascular complications after kidney transplantation include hydronephrosis, hematoma, lymphocele, and abscess. US can detect suggestive, but nevertheless non-specific, acute signs (sudden increase in volume and elevated resistive index), and chronic rejection, which therefore remains a histological diagnosis. US is of little or no help in detection of tubular necrosis or drug toxicity, but it can exclude other differential diagnoses. This educational review provides a practical and systematic approach to a multimodal US investigation of the kidney transplant. It includes a short overview on possible indications for contrast-enhanced ultrasonography (CEUS) in children after kidney transplantation.

show abstract

Relationship Between ‘Immediate’ Resistive Index Measurement After Renal Transplantation and Renal Allograft Outcomes

Cited by 8 publications

References 24 publications

Serial changes in renal allograft resistive index

Serial changes in renal allograft resistive index

Determinants of the serial changes in measurements of renal allograft Doppler resistive index in the first postoperative month

The diagnostic value of Doppler ultrasonography after pediatric kidney transplantation

Contact Info

Product

Resources

About