Abstract
Objectives: We sought to determine the safety of regadenoson stress testing in patients with PH. Background: PH is increasingly recognized at more advanced ages. As many as one-third of patients with PH have coronary artery disease. Because of their physical limitations, patients with PH are unable to adequately exercise. Regadenoson can potentially have an adverse impact due to their tenuous hemodynamics. Current guidelines suggest performing a coronary angiography in patients with PH who have angina or multiple coronary risk factors. Methods: We identified 67 consecutive patients with confirmed PH by catheterization (mean PA > 25 mmHg not due to left heart disease) who underwent MPI with regadenoson stress. Medical records were reviewed to determine hemodynamic and ECG response to regadenoson. Results: No serious events occurred. Common side effects related to regadenoson were observed, dyspnea being the most common (70.6%). No syncope occurred. Heart rate increased from 74.6 ± 14 to 96.3 ± 18.3 bpm, systolic blood pressure increased from 129.8 ± 20.9 to 131.8 ± 31 mmHg, and diastolic blood pressure decreased from 77.1 ± 11.4 to 72.9 ± 15.3 mmHg. There was no ventricular tachycardia, ventricular fibrillation, or second- or third-degree atrioventricular block. Conclusion: Regadenoson stress MPI appears to be well tolerated and safe in patients with PH.
Original language | English (US) |
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Pages (from-to) | 820-827 |
Number of pages | 8 |
Journal | Journal of Nuclear Cardiology |
Volume | 25 |
Issue number | 3 |
DOIs | |
State | Published - Jun 1 2018 |
Funding
Cardiovascular Center, University of Michigan, 2nd Floor CVC / SPC 5853, 1500 E. Medical Center Dr., Ann Arbor, MI 48109-5853; [email protected] Funding No grants, contracts, or other forms of financial support were used in this study. 1071-3581/$34.00 Copyright © 2016 American Society of Nuclear Cardiology.
Keywords
- Pulmonary hypertension
- coronary artery disease
- pulmonary arterial hypertension
- regadenoson
- stress test
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Cardiology and Cardiovascular Medicine