Grau, Juan


Juan B. Grau, MD, is a cardiac surgeon at the University of Ottawa Heart Institute.


A native of Spain, Dr. Grau finished his medical degree and research fellowship in Madrid in 1990 and 1992, respectively. Moving to New York, Dr. Grau completed his General Surgery Internship and Residency at NYU Medical Center, where he also served as Executive Chief Resident in General Surgery; he then completed a three-year Research Fellowship at the NYU Laboratory of Developmental Biology and Repair.

In 2000, Dr. Grau became the surgeon in charge at the Trauma and Shock Unit at the Bellevue Hospital, the largest level 1 trauma centre in New York City. He then completed his cardiothoracic surgery fellowship at NYU Medical Center, Department of Cardiothoracic Surgery. He spent five years as Faculty Attending Surgeon at NYU School of Medicine and NYU Medical Center and in 2008 moved to Philadelphia to join the faculty at The University of Pennsylvania School of Medicine, followed by Columbia University in 2011.

Research & Clinical Interests 

Dr. Grau’s surgical expertise includes minimally invasive complex mitral valve repair, minimally invasive direct coronary artery bypass (MIDCAB) and hybrid coronary revascularization procedures, as well as total arterial coronary revascularization using off-pump techniques. He also performs aortic valve repairs and complex aortic reconstructions using standard approaches combined with endovascular techniques. 

On the research front, Dr. Grau is a prolific writer and a sought-after speaker on the international scene. Notably, he and his team have recently been awarded two significant grants ($6,400,000 x five years) from the National Heart, Lung and Blood Institute at the National Institutes of Health (NHLBI/NIH) pertaining to mitral and aortic disease research, which he will further develop here in Ottawa.

He has published over 120 manuscripts, abstracts and book chapters and is a reviewer for numerous journals in cardiovascular surgery, cardiology and basic sciences.

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