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Left ventricular inotropic reserve and right ventricular function predict increase of left ventricular ejection fraction after beta-blocker therapy in nonischemic cardiomyopathy

Tarik M. Ramahi, MD, FACC^*, Marcella D. Longo, MD, Arina R. Cadariu, MD^*, Kate Rohlfs, RN^*, Stella A. Carolan, RN^*, Kathryn M. Engle, RN^*, Habib Samady, MD^* and Frans J. Th Wackers, MD, PhD, FACC^*

^* Section of Cardiovascular Medicine, Yale School of Medicine, New Haven, Connecticut, USA
Division of Cardiology, University of Turin, Molinette Hospital, Turin, Italy

View larger version (12K): [in a new window]   Figure 1 Change in left ventricular ejection fraction (LVEF) after beta-blocker therapy versus baseline dobutamine-induced increase in LVEF.

View larger version (15K): [in a new window]   Figure 2 Change in left ventricular ejection fraction (LVEF) after beta-blocker therapy versus baseline right ventricular function. RVEF = right ventricular ejection fraction.