RecruitingACTRN12611000786998

Cardiovascular Magnetic Resonance Imaging study assessing myocardial ischemia in patients with end-stage renal disease and renal transplant - evaluation for renal transplant cohort

Study of myocardial ischemia post renal transplant as assessed by Cardiac MRI in patients with end-stage renal disease - evaluation for renal transplant cohort


Sponsor

Professor Joseph Selvanayagam

Enrollment

80 participants

Start Date

Jul 1, 2011

Study Type

Interventional

Summary

This project is designed to assess myocardial ischemia in various populations of patients with renal disease. These cohorts of patients have significant cardiovascular morbidity and mortality. It is believed that apart from epicardial coronary disease, they also have microvascular or small vessel ischemia. Dialysis is thought to be a major contributor in acceleration of their cardiovascular disease, however even after renal transplantation, there cardiovascular morbidity and mortality does not mirror the general population. We are going to assess myocardial ischemia using cardiac MRI and blood oxygen level dependent imaging. This uses intrinsic contrast of deoxy-hemoglobin to assess ischemia. We are going to assess it in patients on dialysis regardless of their cardiovascular symptoms as this group of patients have significant disease despite lack of traditional cardiac symptoms. We are also going to look at patients being evaluated for renal transplant. In this population, we can directly compare this relatively new technique with traditional method of ischemia assessment. We believe this technique will provided added information to already existing imaging modalities as it looks at oxygenation of the myocardium, which precedes development of ischemia. Our third study, evaluates patients after their renal transplant, examining markers that may predict cardiovascular morbidity and mortality in this group. This study is the evaluation for renal transplant cohort and is associated with ACTRN12611000783921 and ACTRN12611000785909


Eligibility

Sex: Both males and femalesMin Age: 18 Yearss

Plain Language Summary

Simplified for easier understanding

This study is using cardiac MRI to assess heart health in people who are being evaluated for a kidney transplant. Before being placed on the transplant waiting list, patients often need a heart check. This study compares the new MRI technique with the traditional heart tests already being done, to see if the MRI can provide additional useful information about heart health. You may be eligible if: - You are 18 years or older - You are on the kidney transplant waiting list and have been referred for a cardiac assessment - You have already had a dobutamine stress echocardiogram or coronary angiography as part of your cardiac work-up You may NOT be eligible if: - You cannot give informed consent - You have severe claustrophobia - You have a pacemaker or metal implant incompatible with MRI - You have asthma or reactive airways - You take theophylline - You cannot lie flat for 1 hour Talk to your doctor about whether this trial might be right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

Framingham's risk score at baseline (race, age, smoking history, family history of cardiac disease, cardiac risk factors) Blood tests at baseline - biochemical markers (hsCRP); markers of fibrosis (M

Framingham's risk score at baseline (race, age, smoking history, family history of cardiac disease, cardiac risk factors) Blood tests at baseline - biochemical markers (hsCRP); markers of fibrosis (MMP); troponin T, BNP and homocysteine levels. Cardiac MRI at baseline - cine images; Blood oxygen level dependent MRI (BOLD) rest and stress using adenosine 140mcg/kg/min for 3-6 minutes. These patients will then undergo dobutamine stress echocardiography (40 patients) or coronary angiography (40 patients) at the discretion of their cardiologist or renal physician as part of routine work up for transplant. Clinic visit at 12 months for repeat bloods. A subset of 50% of these patients who have been transplanted will have follow-up BOLD-MRI imaging performed 3 months after transplant, and delayed enhancement CMR imaging. Final phone follow up at 24 months.


Locations(1)

Australia

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ACTRN12611000786998