John F. Heitner

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OBJECTIVES We tested a pre-defined visual interpretation algorithm that combines cardiovascular magnetic resonance (CMR) data from perfusion and infarction imaging for the diagnosis of coronary artery disease (CAD). BACKGROUND Cardiovascular magnetic resonance can assess both myocardial perfusion and infarction with independent techniques in a single(More)
BACKGROUND In patients with sarcoidosis, sudden death is a leading cause of mortality, which may represent unrecognized cardiac involvement. Delayed-enhancement cardiovascular magnetic resonance (DE-CMR) can detect minute amounts of myocardial damage. We sought to compare DE-CMR with standard clinical evaluation for the identification of cardiac(More)
BACKGROUND Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist (TOPCAT) patients with heart failure and preserved left ventricular ejection fraction assigned to spironolactone did not achieve a significant reduction in the primary composite outcome (time to cardiovascular death, aborted cardiac arrest, or hospitalization for(More)
CONTEXT Acute ST-segment elevation myocardial infarction (STEMI) is a leading cause of morbidity and mortality. In experimental models of MI, erythropoietin reduces infarct size and improves left ventricular (LV) function. OBJECTIVE To evaluate the safety and efficacy of a single intravenous bolus of epoetin alfa in patients with STEMI. DESIGN, SETTING,(More)
OBJECTIVES This study sought to assess the prevalence and markers of left ventricular (LV) thrombus among patients with systolic dysfunction. BACKGROUND Prior studies have yielded discordant findings regarding prevalence and markers of LV thrombus. Delayed-enhancement cardiovascular magnetic resonance (DE-CMR) identifies thrombus on the basis of tissue(More)
BACKGROUND Atrial septal defect (ASD) flow can be measured indirectly by velocity-encoded cardiovascular magnetic resonance (veCMR) of the pulmonary artery and aorta. Imaging the secundum ASD en face could potentially enable direct flow measurement and provide valuable information about ASD size, shape, location, and proximity to other structures. METHODS(More)
BACKGROUND Atrial fibrillation is associated with higher mortality. Identification of causes of death and contemporary risk factors for all-cause mortality may guide interventions. METHODS AND RESULTS In the Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial(More)
BACKGROUND Heart failure with preserved ejection fraction (HFpEF) is associated with substantial morbidity and mortality. Existing data on cardiac structure and function in HFpEF suggest significant heterogeneity in this population. METHODS AND RESULTS Echocardiograms were obtained from 935 patients with HFpEF (left ventricular ejection fraction ≥45%)(More)
Case A 76-year-old woman with history of hypertension and dyslipidemia presented with chest pain and elevated cardiac enzymes. A coronary angiogram revealed no significant coronary artery disease. Echocardiogram (Figure 1) revealed a large, solid mass within the atrioventricular groove and the lateral wall of the left ventricle. There was moderate(More)