Related Experiment Video
Updated: Jul 17, 2026
Functional Assessment of the Donor Heart During Ex Situ Perfusion: Insights from Pressure-Volume Loops and Surface Echocardiography
Published on: October 11, 2022
Myocardial perfusion and ventricular function assessed by SPECT and Gated-SPECT in end-stage renal disease patients
David Bialostozky1, Mayela Leyva, Teresa Villarreal
1Servicio de Cardiología Nuclear, Instituto Nacional de Cardiología Ignacio Chavez, México, DF, México.
Insights
Renal transplant significantly improves uremic cardiomyopathy in end-stage renal disease patients with normal coronary arteries. Cardiac function and perfusion markers showed substantial positive changes post-transplant.
Area of Science:
- Nephrology
- Cardiology
- Nuclear Medicine
Background:
- Cardiovascular disease is a leading cause of death in end-stage renal disease (ESRD).
- Renal transplantation can improve cardiac conditions like left ventricle hypertrophy and systolic dysfunction.
Purpose of the Study:
- To assess the impact of renal transplantation on myocardial perfusion and function in ESRD patients.
- To evaluate changes in uremic cardiomyopathy after kidney transplant.
Main Methods:
- Single Photon Emission Computed Tomography (SPECT) and Gated-SPECT were used.
- 30 ESRD patients with normal coronary angiograms were studied before and after renal transplantation.
Main Results:
- Significant improvement in uremic cardiomyopathy observed post-transplant.
- Reduced angina, cardiomegaly, and perfusion defects.
- Improved left ventricular ejection fraction (LVEF) and reduced wall motion abnormalities.
Conclusions:
- Uremic cardiomyopathy is potentially reversible after renal transplant in select patients.
- SPECT and Gated-SPECT are effective tools for assessing cardiac parameters and guiding treatment decisions.
Background:
Cardiovascular disease is a major cause of morbidity and mortality in end-stage renal disease (ESRD). Renal transplant is known to improve left ventricle hypertrophy and systolic dysfunction in selected groups of patients.
Methods:
We assessed myocardial perfusion, wall motion and functional parameters by single photon emission computed tomography (SPECT) and Gated-SPECT in 30 consecutive ESRD patients with normal coronary angiograms before and after renal transplantation.
Results:
Uremic cardiomyopathy improved significantly after the transplant. The proportion of patients with angina decreased from 26 to 0%; the frequency of cardiomegaly decreased from 57 to 20% (p <0.01); the frequency of segments with perfusion defects decreased from 42.7 to 10.2% (p <0.001); the proportion of patients with low left ventricular ejection fraction (LVEF) dropped from 53.3 to 20% (p <0.001); and mean LVEF increased from (48.0 +/- 9.7% to 58.2 +/- 8.2%). Similarly, the proportion of segments showing systolic wall thickening, hypokinesia and dyskinesia also decreased significantly after renal transplant (p <0.01).
Conclusions:
Uremic cardiomyopathy may be potentially reversible in patients with normal angiographic coronary arteries after renal transplant in a relatively short period of time. SPECT and Gated-SPECT are objective gateway methods to determine myocardial perfusion, hypokinesia, dyskinesia, and functional parameters (left ventricular ejection fraction and systolic wall thickening) and may be useful to establish diagnostic, coronariographic, prognostic, and therapeutic indications.
