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Kidney Transplantation and Renal and Myocardial Perfusion

NCT02960802 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2020-10-27

No results posted yet for this study

Summary

The cardiovascular morbidity and mortality is significantly higher in chronic kidney disease (CKD) patients, especially in dialysis patients, than in normal population. The increased risk of cardiovascular diseases is multifactorial.Endothelial dysfunction is one of the explanations for the poor outcome of kidney patients. The kidney transplantation seems to halt the progression of the cardiovascular morbidity.

Coronary flow reserve (CFR), the capacity of coronary vessels to dilate in response to vasoactive agent, is a marker of the endothelial dysfunction. It is reduced in renal impairment as well as in many preatherosclerotic states and coronary heart disease. The method of choice to evaluate CRF is positron emission tomography (PET). In kidney transplant patients CFR seems to be worse than in healthy controls but better than in dialysis patients. However, the evidence is scarce.

Renal flow reserve (RFR) is smaller than that of heart. RFR probably reflects endothelial function in the same way as CFR does. Declining RFR could perhaps be used to anticipate worsening kidney function especially in kidney transplant patients and be in favour for transplant biopsy.There are no studies of RFR in renal allograft patients.

The objectives of this study are to examine the effect of kidney transplantation on coronary flow reserve (CFR), the change of renal flow reserve (RFR) in kidney transplant patients during the first year after transplantation and assess the correlation between the change of renal blood flow / RFR and kidney biopsy findings in kidney transplant patients.

The first hypothesis of this study is that coronary flow reserve of transplant patients is better than that of dialysis patients but worse than that of healthy controls. The second hypothesis is that renal transplant perfusion reserve is better at one year than at three months after transplantation. The third hypothesis is that pathologic kidney biopsy findings correlate negatively with renal perfusion reserve.

Conditions

  • Kidney Transplant Failure

Interventions

PROCEDURE

kidney transplantation

Sponsors & Collaborators

  • Turku University Hospital

    lead OTHER_GOV

Principal Investigators

  • Johanna Päivärinta, MD · Turku University Hospital

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2017-01-01
Primary Completion
2021-12-31
Completion
2022-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02960802 on ClinicalTrials.gov