Abstract
Background
The prognostic value of regadenoson SPECT myocardial perfusion imaging (MPI) has not been specifically studied in patients with end-stage renal disease (ESRD).
Methods and Results
We prospectively followed ESRD patients enrolled in the ASSUAGE and ASSUAGE-CKD trials in which they received regadenoson-stress 99mTc-tetrofosmin SPECT-MPI. Images were semiquantitatively analyzed by an investigator blinded to clinical and outcome data. Patients were followed for cardiac death, myocardial infarction (MI), and coronary revascularization (CR). Revascularizations occurring >90 days post-MPI were considered “late” events. Survival analysis was performed using Cox regression models, adjusting for age, gender, diabetes, dyslipidemia, smoking, and known coronary artery disease. We analyzed 303 patients (mean age 54 years; 64% men), who were followed for 35 ± 10 months. Adjusting for clinical covariates, abnormal regadenoson-stress MPI (SSS ≥ 4) was associated with increased risk of the composite of cardiac death or MI (23.9% vs 14.4%; HR 1.88; CI 1.04-3.41; P = .037) and the composite of cardiac death, MI, or late CR (27.3% vs 16.7%; HR 1.80; CI 1.03-3.14; P = .039). Adjusting for clinical covariates, regadenoson-induced myocardial ischemia (SDS ≥ 2) was associated with increased rate of the composite endpoint of cardiac death, MI, or CR (33.3% vs 16.9%; HR 1.97; CI 1.19-3.27; P = .008).
Conclusion
Regadenoson-stress SPECT-MPI provides a significant prognostic value in patients with ESRD. ESRD patients with normal SPECT-MPI have relatively high adverse event rates.
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Abbreviations
- CAD:
-
Coronary artery disease
- CR:
-
Coronary revascularization
- ESRD:
-
End-stage renal disease
- LV:
-
Left ventricular
- MI:
-
Myocardial infarction
- MPI:
-
Myocardial perfusion abnormality
- SDS:
-
Summed difference score
- SPECT:
-
Single-photon emission computed tomography
- SSS:
-
Summed stress score
- TID:
-
Transient ischemic dilation
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Disclosure
Rami Doukky serves on the Advisory Board for Astellas Pharma and receives research funding from Astellas Pharma. Other authors have no conflicts to report.
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See related editorial, doi:10.1007/s12350-015-0337-7.
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Doukky, R., Fughhi, I., Campagnoli, T. et al. The prognostic value of regadenoson SPECT myocardial perfusion imaging in patients with end-stage renal disease. J. Nucl. Cardiol. 24, 112–118 (2017). https://doi.org/10.1007/s12350-015-0303-4
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DOI: https://doi.org/10.1007/s12350-015-0303-4