What is the clinical evidence from this study?

Study design: Review. Population: Cardiac amyloidosis and coronary artery disease.

What does this research mean for the field?

Myocardial ischemia in cardiac amyloidosis is predominantly caused by coronary microvascular dysfunction rather than flow-limiting epicardial stenosis, confounding ischemic evaluations and fractional flow reserve measurements. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To synthesize the pathophysiological overlap between cardiac amyloidosis and coronary artery disease and outline diagnostic strategies to distinguish microvascular dysfunction from epicardial obstruction.

September 30, 2026Coronary Artery DiseaseOpen Access

Cardiac amyloidosis and coronary artery disease: an overlooked clinical intersection

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Key result

Coronary microvascular dysfunction drives ischemia in cardiac amyloidosis despite epicardial atherosclerosis in ~35% of patients.

Why the study?

Cardiac amyloidosis and coronary artery disease frequently coexist, creating complex diagnostic and therapeutic challenges that are underrecognized in clinical practice.

Key Points

To synthesize the pathophysiological overlap between cardiac amyloidosis and coronary artery disease and outline diagnostic strategies to distinguish microvascular dysfunction from epicardial obstruction.
Reviewed clinical and pathophysiological mechanisms underlying myocardial ischemia in cardiac amyloidosis and concomitant coronary artery disease.
Evaluated the diagnostic accuracy of invasive hemodynamic measurements alongside noninvasive multimodality imaging tools, including echocardiography, cardiac MRI, nuclear perfusion imaging, and cardiac CT.
Epicardial atherosclerosis coexists in approximately 30% to 40% of patients with cardiac amyloidosis, but ischemia is primarily driven by coronary microvascular dysfunction rather than flow-limiting obstruction.
Chronic troponin elevations from subendocardial ischemia mimic acute coronary syndromes, while compromised hyperemic capacity renders fractional flow reserve measurements unreliable.
Multimodality imaging effectively differentiates microvascular ischemia from epicardial stenosis, addressing key diagnostic pitfalls and guiding revascularization decisions.

Structured PICO

Population

Patients with cardiac amyloidosis and concomitant coronary artery disease

Intervention

Multimodality imaging strategy (integrating advanced echocardiography, cardiac magnetic resonance, nuclear perfusion imaging, and cardiac computed tomography)

This review highlights that ischemia in cardiac amyloidosis is predominantly microvascular rather than epicardial, necessitating careful multimodality imaging to avoid unnecessary and risky invasive procedures.

Limitations

Absence of randomized data comparing revascularization with medical therapy in this population

Discussion

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Implication

Ischemia in cardiac amyloidosis is rarely due to epicardial stenoses; leaves open whether revascularization improves outcomes in coexistent CAD.

Cite This Study

Kancerek et al. (2026) conducted a review in Cardiac amyloidosis and coronary artery disease. Cardiac amyloidosis coexists with epicardial atherosclerosis in 30-40% of patients, yet ischemia is primarily driven by coronary microvascular dysfunction rather than epicardial obstruction.

synapsesocial.com/papers/6abc5778fbfca106a1247f34 https://doi.org/10.1097/mca.0000000000001679

Topics

Coronary artery disease Heart failure HFrEF treatment Artificial intelligence in cardiology

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Implication

Ischemia in cardiac amyloidosis is rarely due to epicardial stenoses; leaves open whether revascularization improves outcomes in coexistent CAD.

Cardiac amyloidosis and coronary artery disease: an overlooked clinical intersection

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Topics

Cardiac amyloidosis and coronary artery disease: an overlooked clinical intersection

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

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Topics

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