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Prognostic role of myocardial single photon emission computed tomography in the elderly
Pasquale Perrone-Filardi1, Pierluigi Costanzo, Santo Dellegrottaglie
1Department of Clinical Medicine, Cardiovascular and Immunological Sciences, Federico II University, Via S. Pansini 5, Naples, 80131, Italy. fpperron@unina.it
Insights
Coronary artery disease (CAD) affects more older adults. Myocardial perfusion imaging using SPECT is valuable for assessing cardiac risk in elderly patients unable to complete exercise tests.
Area of Science:
- Cardiology
- Nuclear Medicine
- Geriatric Medicine
Background:
- Increasing life expectancy shifts the burden of coronary artery disease (CAD) to older populations.
- Despite higher cardiovascular risk, elderly patients often receive underperformed diagnostic and therapeutic work-ups.
- Exercise ECG testing, recommended for CAD assessment, is frequently inadequate for elderly patients unable to achieve sufficient workload.
Purpose of the Study:
- To evaluate the utility of myocardial perfusion imaging by single photon emission computed tomography (SPECT) in elderly patients with suspected coronary artery disease.
- To determine if SPECT can provide valuable diagnostic and prognostic information for managing cardiovascular risk in the elderly.
- To assess the prognostic value of normal or near-normal SPECT findings in predicting major adverse cardiac events in older adults.
Main Methods:
- Review of SPECT imaging utilization and outcomes in elderly patients.
- Comparison of SPECT findings with exercise ECG test results in the geriatric population.
- Analysis of short-term follow-up data for major adverse cardiac events in patients with normal or near-normal SPECT results.
Main Results:
- A significant proportion of elderly patients cannot complete adequate exercise treadmill tests, often resulting in intermediate risk classification.
- SPECT imaging offers valuable diagnostic and prognostic information for the clinical management of CAD in elderly individuals.
- Normal or near-normal SPECT findings effectively identify elderly patients at low risk for major adverse cardiac events in the short term.
Conclusions:
- Myocardial perfusion imaging by SPECT is a crucial tool for assessing coronary artery disease in elderly patients, particularly when exercise testing is limited.
- SPECT provides reliable prognostic information, enabling risk stratification and guiding clinical management decisions in geriatric cardiology.
- Normal SPECT results in elderly patients indicate a favorable short-term prognosis, reducing the likelihood of major adverse cardiac events.
Abstract:
The increase in average life expectancy will move the burden of coronary artery disease (CAD) to older patients. Myocardial perfusion imaging by single photon emission computed tomography (SPECT) has been extensively validated for diagnosis and prognostic evaluation in large population series. Yet, its use is usually limited in elderly patients in whom, despite increased absolute cardiovascular risk, diagnostic and therapeutic work-up is often underperformed. American College of Cardiology/American Heart Association guidelines recommend exercise ECG testing as the initial noninvasive method for assessment of CAD in patients with a normal or near-normal resting ECG, regardless of age. However, a considerable proportion of elderly patients is unable to reach an adequate workload during the exercise test and the majority of those undergoing for standard exercise treadmill score are classified as intermediate risk. In elderly patients, SPECT imaging may provide valuable diagnostic and prognostic information for clinical management. In particular, normal or near normal SPECT identifies elderly patients at low risk of major adverse cardiac events at the short-term follow-up.
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