Ischemic cardiomyopathy accounts for approximately 50% of patients with heart failure and one-third of the patients undergoing coronary artery bypass surgery.1 Left ventricular (LV) ejection fraction (EF) and end-systolic volume index (ESVI) are predictors of mortality in these patients. Cardiovascular magnetic resonance (CMR) imaging can provide precise estimates of LV volumes and function. In the Surgical Treatment for Ischemic Heart Failure (STICH) Trial population,2 we tested the hypothesis that CMR-derived LVEF and volumes would provide improved risk stratification.
Pai RG, Varadarajan P, Rouleau JL, Stebbins AL, Velazquez EJ, Al-Khalidi HR, Pohost GM. Value of Cardiovascular Magnetic Resonance Imaging–Derived Baseline Left Ventricular Ejection Fraction and Volumes for Precise Risk Stratification of Patients With Ischemic CardiomyopathyInsights From the Surgical Treatment for Ischemic Heart Failure (STICH) Trial. JAMA Cardiol. Published online February 15, 2017. doi:10.1001/jamacardio.2016.5492