aJohn Ochsner Heart and Vascular Institute, Ochsner Medical Center, New Orleans, Louisiana, USA

bKing Salman Heart Center, King Fahad Medical City, Riyadh, Saudi Arabia

cThe University of Queensland School of Medicine, Ochsner Clinical School

dSection of Cardiomyopathy & Heart Transplantation, Ochsner Clinic Foundation, New Orleans, Louisiana, USA

Correspondence to Selim R. Krim, MD, FACC, FHFSA, Section of Cardiomyopathy & Heart Transplantation, John Ochsner Heart and Vascular Institute, 1514 Jefferson Highway, New Orleans, LA 70121, USA. Tel: +1 504 842 4721; fax: +1 504 842 5689; e-mail: [email protected]