Cardiac magnetic resonance imaging in patients referred for premature ventricular contractions: identifying patients most likely to benefit - Summary - MDSpire
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Cardiac magnetic resonance imaging in patients referred for premature ventricular contractions: identifying patients most likely to benefit
Predictive factors for structural abnormalities included age (odds ratio [OR]: 1.03; p = 0.016), male sex (OR: 2.48; p = 0.019), diabetes (OR: 5.02; p = 0.010), smoking (OR: 2.09; p = 0.047), known cardiomyopathy (OR: 3.24; p = 0.006), pleomorphic PVCs (OR: 2.48; p = 0.051), and the absence of a decrease in PVC frequency during exercise (OR: 0.24; p < 0.001).
Young, nondiabetic patients with normal echocardiography and monomorphic PVCs that decreased with effort had normal CMR findings.
Interpretation:
CMR is useful in investigating PVCs, detecting structural abnormalities that may not be identified in initial assessments.
Limitations:
The study was retrospective and conducted at a single center.
Findings may not be generalizable to all patient populations.
Conclusion:
CMR can detect structural heart disease in PVC patients, with specific predictive factors identified.
An interpretable machine-learning model classified angiographic coronary artery disease in patients referred for coronary angiography, but high disease prevalence and unclear inflammatory signals limited clinical interpretation.