ArticleJournal of the American Heart Association2026
Clinical and Imaging Abnormalities Associated With Inducible Ventricular Arrhythmias During Electrophysiologic Study in Patients With Cardiac Sarcoidosis and Mildly Impaired Left Ventricular Function.
Article in Journal of the American Heart Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPatients with cardiac sarcoidosis (CS) and mildly impaired left ventricular ejection fraction remain at high risk for sudden cardiac death. However, risk stratification for implantable cardioverter-defibrillator implantation in this group is needed. We aimed to determine if electrophysiologic study (EPS) may be used as a noninvasive alternative for sudden cardiac death risk stratification.
methodsIn this retrospective cohort study, we analyzed patients with CS (aged >18 years) with highly probable or probable sarcoidosis according to the World Association of Sarcoidosis and Other Granulomatous Disorders Sarcoidosis Organ Assessment Instrument, with evidence of late gadolinium enhancement on cardiac magnetic resonance imaging in a pattern consistent with CS and left ventricular ejection fraction ≥40%, who underwent EPS.
resultsWe identified 101 patients with CS, 15 EPS positive and 86 EPS negative. A higher proportion of patients with an EPS-positive study was associated with antiarrhythmic therapy (
conclusionsIn patients with CS and mildly impaired left ventricular ejection fraction, we demonstrated that transmural myocardial scarring and edema on T2-weighted cardiac magnetic resonance imaging are associated with sustained ventricular arrhythmia during EPS, suggesting that noninvasive imaging features may be used as prognostic indicators in patients with CS. Larger, prospective studies are needed to inform implantable cardioverter-defibrillator implantation guidelines.
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