The Intrarenal Vascular Resistance Parameters Measured by Duplex Doppler Ultrasound Shortly After Kidney Transplantation in Patients With Immediate, Slow, and Delayed Graft Function

Chudek, Jerzy; Kolonko, Aureliusz; Król, Robert; Ziaja, Jacek; Cierpka, Lech; Wiȩcek, Andrzej

doi:10.1016/j.transproceed.2005.12.013

Cited by 62 publications

(44 citation statements)

References 10 publications

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“…15 Chudek and colleagues also found significant negative correlations between donor glomerular filtration rate and PI and RI. 16 Renal Doppler ultrasound is the imaging modality of choice for following up of renal transplant recipients. It can diagnose initial graft dysfunction as well as postoperative complications.…”

Section: Discussionmentioning

confidence: 99%

Relation of Resistive and Pulsatility Indices With Graft Function After Renal Transplant

Ghorbani

Shirazi²,

Sametzadeh³

et al. 2012

Exp Clin Transplant

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Objectives: There are conflicting data regarding the use of some measured indices by Doppler ultrasound such as the resistive index and the pulsatility index in predicting renal allograft dysfunction. This study sought to evaluate the association of early postoperative Doppler indices and 3-month serum creatinine levels in renal transplant recipients. Materials and Methods: During a 1-year period, all patients who underwent renal transplant at our hospital were recruited into a prospective study. Doppler ultrasound was performed on all patients 6 days and 3 months after the transplant and the resistive index and the pulsatility index were calculated for each patient. Then, the association between these indices and 3-month outcomes of patients were investigated. Results: Thirty-eight patients including 21 men (mean age, 36.6 ± 13.1 y) were evaluated. There was a positive correlation between the resistive index and the pulsatility index at 6 days after transplant and the serum creatinine measured at the same day (P < .001 and r=0.570 for resistive index; P < .001 and r=0.547 for pulsatility index). There was also a positive correlation between the pulsatility index and the resistive index at 6 days after transplant and 3-month serum creatinine level (P = .009 and r=0.420 for resistive index; P = .009 and r=0.417 for pulsatility index). There were negative correlations between the resistive index and the pulsatility index on the sixth day after surgery and creatinine clearance measured at 6 days and 3 months after transplant. Conclusions: This study reveals a strong-to-medium correlation between the resistive index and the pulsatility index, serum creatinine level, measured 6 days after transplant.

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Section: Discussionmentioning

confidence: 99%

Relation of Resistive and Pulsatility Indices With Graft Function After Renal Transplant

Ghorbani

Shirazi²,

Sametzadeh³

et al. 2012

Exp Clin Transplant

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“…In a prospective study, Radermacher et al [9] demonstrated that an RI of 0.8 or higher measured at least three months after transplantation was associated with poor allograft outcome independently of other established risk factors, though it is not known whether early RI is also related with long-term outcome. Several reports have related RI, measured at different moments after transplantation, with renal allograft function, although there are also conflicting findings [1,3,9,10,11,12,13,14,15,16,17,18,19,20]. The relationship between RI and transplant function and outcome may reflect intra-renal damage that can be of interest for evaluating the graft adequately.…”

Section: Introductionmentioning

confidence: 99%

Determinants of Resistive Index Shortly after Transplantation: Independent Relationship with Delayed Graft Function

Rodrigo¹,

López-Rasines

Ruiz³

et al. 2009

Nephron Clin Pract

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Measurement of the vascular resistive index (RI) by Doppler ultrasonography has been proposed as a non-invasive method to evaluate renal allograft dysfunction, but there are conflicting reports about its clinical utility. The aim of our study was to analyse the donor and recipient characteristics related to RI measured at days 2 and 3 after renal transplantation and the relationship between RI and allograft outcome. RI was measured by Doppler ultrasonography in 333 patients at days 2 or 3 post-transplantation. Donor and recipient variables and allograft outcome were collected from a prospectively maintained institutional database. In patients with RI higher than 0.7, donor age, recipient age, duration of renal replacement therapy, incidence of diabetes, hypertension and atherosclerosis in the recipient, pulse pressure, initial creatinine and the incidence of delayed graft function (DGF) were higher. After multivariate analysis, the only variables that remained significant for an increased risk of higher RI were recipient age over 55 years, presence of diabetes in the recipient and DGF. Recipient age, previous diabetes mellitus and DGF are the most important determinants of transplant kidney RI in the first days after transplantation. So both the graft recipient and the graft itself, but not the donor, determine intra-renal Doppler indices.

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“…Pomiar RI korelował nie tylko z samym faktem wystąpienia AKI w czasie 1-4 dni po operacji, ale i z ciężkością jego przebiegu. Wyniki tych badań są zgodne z obserwacjami u chorych po transplantacji nerki, które wykazały przydatność oceny RI we wczesnym okresie po transplantacji nerki w prognozowaniu wczesnej funkcji nerki przeszczepionej [41]. Nie ulega wątpliwości, że ocena przydatności pomiaru RI w intensyw-nej terapii kardiologicznej czy kardiochirurgicznej wymaga przeprowadzenia badań prospektywnych [42].…”

Section: Czynniki Ryzyka Csa-akiunclassified

Postępowanie w okresie okołooperacyjnym u chorych z ryzykiem wystąpienia ostrego uszkodzenia nerek, poddawanych operacjom kardiochirurgicznym

Krzych

Wybraniec²,

Chudek³

et al. 2013

Anaesthesiol Intensive Ther

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Acute kidney injury is one of the most frequent and clinically important of all postoperative complications in cardiac surgery. It is estimated that almost half of subjects suffer from a deterioration of kidney function after a cardio-pulmonary by-pass. Renal insufficiency impacts upon the outcome in terms of an increase in postoperative morbidity and mortality, and a decrease in quality of life. Recently, a modified and unified classification of cardio-renal syndrome has been devised, which takes into account bilateral association between the heart and the kidneys. Because acute decompensation in heart function leads to acute kidney damage, therefore cardiac surgery-associated acute kidney injury may be recognised as a type 1 cardio-renal syndrome from a pathophysiological point of view. This paper aims to review the current data on the diagnosis of acute kidney injury and preventive strategies that can be implemented in cardiac surgery perioperative care.

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The Intrarenal Vascular Resistance Parameters Measured by Duplex Doppler Ultrasound Shortly After Kidney Transplantation in Patients With Immediate, Slow, and Delayed Graft Function

Cited by 62 publications

References 10 publications

Relation of Resistive and Pulsatility Indices With Graft Function After Renal Transplant

Relation of Resistive and Pulsatility Indices With Graft Function After Renal Transplant

Determinants of Resistive Index Shortly after Transplantation: Independent Relationship with Delayed Graft Function

Postępowanie w okresie okołooperacyjnym u chorych z ryzykiem wystąpienia ostrego uszkodzenia nerek, poddawanych operacjom kardiochirurgicznym

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